Podcast
Questions and Answers
What happens if a unique 4K block cannot be reduced to 2K or less during compression in vSAN?
What happens if a unique 4K block cannot be reduced to 2K or less during compression in vSAN?
- The block is written uncompressed (correct)
- The block is moved to a different disk group
- The block is compressed and stored
- The block is discarded
VSAN ESA supports in-place upgrades from OSA to ESA on the same hardware.
VSAN ESA supports in-place upgrades from OSA to ESA on the same hardware.
False (B)
Name the two types of architectures that vSAN distinguishes between.
Name the two types of architectures that vSAN distinguishes between.
Original Storage Architecture (OSA) and Express Storage Architecture (ESA)
VSAN ESA can deliver performance improvements of up to ______ times that scale with modern technologies.
VSAN ESA can deliver performance improvements of up to ______ times that scale with modern technologies.
Match the following features of vSAN ESA with their descriptions:
Match the following features of vSAN ESA with their descriptions:
Which of the following is not a guideline for existing cluster deduplication and compression?
Which of the following is not a guideline for existing cluster deduplication and compression?
Only validated server configurations can support vSAN ESA.
Only validated server configurations can support vSAN ESA.
What is the maximum number of disks supported per vSAN host in the vSAN OSA configuration?
What is the maximum number of disks supported per vSAN host in the vSAN OSA configuration?
VSAN ESA supports hybrid configurations.
VSAN ESA supports hybrid configurations.
What type of disk structure does vSAN OSA utilize?
What type of disk structure does vSAN OSA utilize?
In vSAN ESA, compression is more __________ compared to vSAN OSA.
In vSAN ESA, compression is more __________ compared to vSAN OSA.
Match the vSAN configurations with their specific features:
Match the vSAN configurations with their specific features:
Which of the following is a requirement for vSAN ESA deployment?
Which of the following is a requirement for vSAN ESA deployment?
VSAN ESA can be deployed using existing hardware configurations.
VSAN ESA can be deployed using existing hardware configurations.
How many encryption keys are used per cluster in the vSAN ESA configuration?
How many encryption keys are used per cluster in the vSAN ESA configuration?
Compression in vSAN OSA is __________ by default.
Compression in vSAN OSA is __________ by default.
Which vSphere version is supported by vSAN OSA?
Which vSphere version is supported by vSAN OSA?
What is the main reason deduplication options are not available for vSAN ESA clusters?
What is the main reason deduplication options are not available for vSAN ESA clusters?
Removing a host from a vSAN ESA cluster will not affect the compliance of the storage policy.
Removing a host from a vSAN ESA cluster will not affect the compliance of the storage policy.
What storage size range is supported per vSAN Max host?
What storage size range is supported per vSAN Max host?
In VMware Cloud Foundation, a disaggregated vSAN Max deployment cannot be supported in a __________ cluster topology.
In VMware Cloud Foundation, a disaggregated vSAN Max deployment cannot be supported in a __________ cluster topology.
Match the storage options with their characteristics:
Match the storage options with their characteristics:
Which VMware Cloud Foundation version allows users to choose between aggregated vSAN HCI and disaggregated vSAN Max clusters?
Which VMware Cloud Foundation version allows users to choose between aggregated vSAN HCI and disaggregated vSAN Max clusters?
VSAN Max can be used retroactively in a deployed cluster.
VSAN Max can be used retroactively in a deployed cluster.
What generates health alerts in response to policy noncompliance in vSAN ESA?
What generates health alerts in response to policy noncompliance in vSAN ESA?
The integration of vSAN Max in deployment and management workflows provides __________ storage for VMware Cloud Foundation.
The integration of vSAN Max in deployment and management workflows provides __________ storage for VMware Cloud Foundation.
Which of the following is NOT a limitation of vSAN Max in VMware Cloud Foundation?
Which of the following is NOT a limitation of vSAN Max in VMware Cloud Foundation?
What is an essential requirement for each availability zone in a stretched cluster?
What is an essential requirement for each availability zone in a stretched cluster?
A witness site in a stretched cluster contains multiple hosts.
A witness site in a stretched cluster contains multiple hosts.
What is the minimum number of ESXi hosts required in the default management domain for a given availability zone?
What is the minimum number of ESXi hosts required in the default management domain for a given availability zone?
A stretched cluster provides resilience across __________ zones.
A stretched cluster provides resilience across __________ zones.
Match the following stretched cluster use cases with their descriptions:
Match the following stretched cluster use cases with their descriptions:
What percentage of overhead is allocated for vSAN metadata?
What percentage of overhead is allocated for vSAN metadata?
The effective capacity calculation for RAID 5 supports only FTT=2.
The effective capacity calculation for RAID 5 supports only FTT=2.
What is the recommended percentage for slack space calculations in a production environment?
What is the recommended percentage for slack space calculations in a production environment?
For optimal performance, the storage I/O controller with the _____ queue depth should be selected.
For optimal performance, the storage I/O controller with the _____ queue depth should be selected.
Match the following vSAN features with their descriptions:
Match the following vSAN features with their descriptions:
Which factor must be considered when enabling vSAN Reserved Capacity?
Which factor must be considered when enabling vSAN Reserved Capacity?
Entering Maintenance Mode can take several hours.
Entering Maintenance Mode can take several hours.
What is the maximum size for Object Space Reservations in vSAN?
What is the maximum size for Object Space Reservations in vSAN?
VSAN operations require that vSphere admins now act as _____ admins.
VSAN operations require that vSphere admins now act as _____ admins.
What is the significance of using pass-through rather than Raid-0 in storage controller selection?
What is the significance of using pass-through rather than Raid-0 in storage controller selection?
What is the minimum number of ESXi hosts required for maintaining FTT of 2 with RAID-5?
What is the minimum number of ESXi hosts required for maintaining FTT of 2 with RAID-5?
Deduplication and compression can be applied to VMs that utilize VM encryption.
Deduplication and compression can be applied to VMs that utilize VM encryption.
What storage policy status can be monitored in the VM Compliance tab?
What storage policy status can be monitored in the VM Compliance tab?
A minimum of ______ ESXi hosts is required for RAID-6 configurations.
A minimum of ______ ESXi hosts is required for RAID-6 configurations.
Match the RAID levels with their corresponding failures to tolerate (FTT):
Match the RAID levels with their corresponding failures to tolerate (FTT):
What does the deduplication option in vSAN achieve?
What does the deduplication option in vSAN achieve?
RAID-5 configurations require a minimum of 3 ESXi hosts.
RAID-5 configurations require a minimum of 3 ESXi hosts.
What is the minimum number of ESXi hosts required in the default management domain for each availability zone in a stretched cluster?
What is the minimum number of ESXi hosts required in the default management domain for each availability zone in a stretched cluster?
What is the primary purpose of a stretched cluster in terms of maintenance?
What is the primary purpose of a stretched cluster in terms of maintenance?
A stretched cluster consists of two active availability zones and one ________ site.
A stretched cluster consists of two active availability zones and one ________ site.
Match each stretched cluster use case with its description:
Match each stretched cluster use case with its description:
Which storage configuration model does vSAN OSA use?
Which storage configuration model does vSAN OSA use?
VSAN ESA supports both hybrid and all-flash configurations.
VSAN ESA supports both hybrid and all-flash configurations.
VSAN ESA requires a minimum of ____ CPUs.
VSAN ESA requires a minimum of ____ CPUs.
Compression in vSAN ESA is more efficient than in vSAN OSA.
Compression in vSAN ESA is more efficient than in vSAN OSA.
Compression in both vSAN configurations is ____ by default.
Compression in both vSAN configurations is ____ by default.
What is the encryption key structure for the vSAN OSA configuration?
What is the encryption key structure for the vSAN OSA configuration?
Which storage policy provides a Fault Tolerance Level (FTT) of 2?
Which storage policy provides a Fault Tolerance Level (FTT) of 2?
Compression is disabled by default for vSAN ESA storage policies.
Compression is disabled by default for vSAN ESA storage policies.
What does vSAN ESA not support for storage policies?
What does vSAN ESA not support for storage policies?
VSAN ESA capacity reporting can be found under VSAN Cluster-_______-Capacity.
VSAN ESA capacity reporting can be found under VSAN Cluster-_______-Capacity.
Match the following vSAN ESA characteristics with their descriptions:
Match the following vSAN ESA characteristics with their descriptions:
What is required to activate Auto-Policy Management in vSAN ESA?
What is required to activate Auto-Policy Management in vSAN ESA?
VSAN ESA uses concatenated RAID-0 within RAID-5 components.
VSAN ESA uses concatenated RAID-0 within RAID-5 components.
What should be turned ON to activate Auto-Policy Management in a cluster?
What should be turned ON to activate Auto-Policy Management in a cluster?
What architectural structure does vSAN ESA utilize?
What architectural structure does vSAN ESA utilize?
Match the following storage policies of vSAN ESA with their characteristics:
Match the following storage policies of vSAN ESA with their characteristics:
A failure of a cache disk in vSAN ESA impacts other disks.
A failure of a cache disk in vSAN ESA impacts other disks.
VSAN ESA supports storage policies on a per-_______ basis.
VSAN ESA supports storage policies on a per-_______ basis.
What type of devices are supported in vSAN ESA?
What type of devices are supported in vSAN ESA?
VSAN ESA compresses data at __________ to reduce network traffic.
VSAN ESA compresses data at __________ to reduce network traffic.
Match the following features of vSAN ESA with their advantages:
Match the following features of vSAN ESA with their advantages:
What is the primary benefit of using storage pools in vSAN ESA?
What is the primary benefit of using storage pools in vSAN ESA?
Ingesting smaller I/O from guest VMs to an in-memory stripe buffer helps in packaging larger I/O blocks.
Ingesting smaller I/O from guest VMs to an in-memory stripe buffer helps in packaging larger I/O blocks.
What does the Log-Structured Filesystem (LFS) do to enhance I/O performance?
What does the Log-Structured Filesystem (LFS) do to enhance I/O performance?
With vSAN ESA, the maximum number of disks is defined by the number of __________ in a host.
With vSAN ESA, the maximum number of disks is defined by the number of __________ in a host.
Which of the following is NOT a feature of vSAN ESA?
Which of the following is NOT a feature of vSAN ESA?
What is one of the goals of storage policies in a policy-driven storage system?
What is one of the goals of storage policies in a policy-driven storage system?
A default policy in vSAN allows for one failure to tolerate.
A default policy in vSAN allows for one failure to tolerate.
What is the minimum number of ESXi hosts required for implementing Failures to Tolerate (FTT) policies?
What is the minimum number of ESXi hosts required for implementing Failures to Tolerate (FTT) policies?
In vSAN, a __________ is created from components such as flat VMDKs.
In vSAN, a __________ is created from components such as flat VMDKs.
Match the following components of vSAN with their descriptions:
Match the following components of vSAN with their descriptions:
What type of policy is used for creating mirrored copies of VM objects in vSAN?
What type of policy is used for creating mirrored copies of VM objects in vSAN?
Objects in vSAN can only be treated the same regardless of the defined policy.
Objects in vSAN can only be treated the same regardless of the defined policy.
Each availability zone in a stretched cluster must contain a different number of hosts.
Each availability zone in a stretched cluster must contain a different number of hosts.
What is the role of the witness site in a stretched cluster?
What is the role of the witness site in a stretched cluster?
What is one of the key advantages of vSAN ESA compared to vSAN OSA?
What is one of the key advantages of vSAN ESA compared to vSAN OSA?
In vSAN ESA, a pool of independent storage devices means a single disk failure can bring down the entire storage architecture.
In vSAN ESA, a pool of independent storage devices means a single disk failure can bring down the entire storage architecture.
What type of flash devices does vSAN ESA support?
What type of flash devices does vSAN ESA support?
VSAN ESA introduces the __________ Filesystem which helps reduce I/O amplifications.
VSAN ESA introduces the __________ Filesystem which helps reduce I/O amplifications.
Which of the following statements accurately reflects the data intake process in vSAN ESA?
Which of the following statements accurately reflects the data intake process in vSAN ESA?
Compression in vSAN ESA occurs multiple times during the data lifecycle to optimize storage efficiency.
Compression in vSAN ESA occurs multiple times during the data lifecycle to optimize storage efficiency.
What is the purpose of checksumming data at ingest in vSAN ESA?
What is the purpose of checksumming data at ingest in vSAN ESA?
VSAN ESA's improved I/O flow allows data to be written directly to one __________.
VSAN ESA's improved I/O flow allows data to be written directly to one __________.
What must be enabled during the creation of additional clusters with vSAN ESA?
What must be enabled during the creation of additional clusters with vSAN ESA?
Cross vCenter Cross Cluster Capacity Sharing is supported in VCF 5.2.
Cross vCenter Cross Cluster Capacity Sharing is supported in VCF 5.2.
What feature allows for automatic verification of underlying hardware in vSAN?
What feature allows for automatic verification of underlying hardware in vSAN?
To create a vSAN ESA cluster-based deployment, you modify the ______ parameter sheet.
To create a vSAN ESA cluster-based deployment, you modify the ______ parameter sheet.
Which of the following is NOT supported for vSAN ESA?
Which of the following is NOT supported for vSAN ESA?
Using a proxy server for HCL life cycle management is a required step.
Using a proxy server for HCL life cycle management is a required step.
What document can be provided manually to create vSAN ESA clusters in air-gapped environments?
What document can be provided manually to create vSAN ESA clusters in air-gapped environments?
A minimum of _____ ESXi hosts is required for maintaining FTT of 2 with RAID-5.
A minimum of _____ ESXi hosts is required for maintaining FTT of 2 with RAID-5.
Which of the following is true about default vSAN ESA storage policies?
Which of the following is true about default vSAN ESA storage policies?
Auto-Policy Management must be disabled for the storage policy to take effect.
Auto-Policy Management must be disabled for the storage policy to take effect.
What feature does the new vSAN ESA storage type utilize?
What feature does the new vSAN ESA storage type utilize?
What is the recommended vSAN ESA Default Policy for optimal performance?
What is the recommended vSAN ESA Default Policy for optimal performance?
The number of disk stripes per object is __________ for vSAN ESA.
The number of disk stripes per object is __________ for vSAN ESA.
Match the following characteristics with their descriptions:
Match the following characteristics with their descriptions:
Which option refers to the FTT provided by the default vSAN ESA Policy RAID 6?
Which option refers to the FTT provided by the default vSAN ESA Policy RAID 6?
VSAN ESA supports granular storage policies per VMDK.
VSAN ESA supports granular storage policies per VMDK.
What does vSAN ESA do to reduce I/O amplification?
What does vSAN ESA do to reduce I/O amplification?
When using vSAN ESA, storage policies are optimized based on cluster size and the number of __________ in the cluster inventory.
When using vSAN ESA, storage policies are optimized based on cluster size and the number of __________ in the cluster inventory.
Which statement about vSAN ESA storage policies is FALSE?
Which statement about vSAN ESA storage policies is FALSE?
What maximum reduction is required for a 4K block to be stored compressed in vSAN?
What maximum reduction is required for a 4K block to be stored compressed in vSAN?
VSAN ESA supports in-place upgrades from OSA on the same hardware.
VSAN ESA supports in-place upgrades from OSA on the same hardware.
What is the primary storage architecture used in VMware Cloud Foundation?
What is the primary storage architecture used in VMware Cloud Foundation?
VSAN ESA supports only high performance NVMe _____ devices.
VSAN ESA supports only high performance NVMe _____ devices.
Which step is NOT part of the existing cluster deduplication and compression guideline?
Which step is NOT part of the existing cluster deduplication and compression guideline?
What is the expected performance improvement of vSAN ESA compared to previous versions?
What is the expected performance improvement of vSAN ESA compared to previous versions?
What is the maximum round-trip time (RTT) allowed between availability zones?
What is the maximum round-trip time (RTT) allowed between availability zones?
The vSphere vMotion networks must be in the same Layer 2 domain to avoid the need for configuring gateways.
The vSphere vMotion networks must be in the same Layer 2 domain to avoid the need for configuring gateways.
What is the default RAID configuration in vSAN ESA that provides Fault Tolerance (FTT) of 1?
What is the default RAID configuration in vSAN ESA that provides Fault Tolerance (FTT) of 1?
What must be ensured about the gateway for vSphere vMotion in VMware Cloud Foundation?
What must be ensured about the gateway for vSphere vMotion in VMware Cloud Foundation?
Granular storage policies (per VMDK) are supported in vSAN ESA.
Granular storage policies (per VMDK) are supported in vSAN ESA.
The management domain is crucial for accessing and managing workload domains in case of a __________.
The management domain is crucial for accessing and managing workload domains in case of a __________.
Match the following network aspects with their requirements:
Match the following network aspects with their requirements:
What is enabled by default in vSAN ESA storage policies unless it is disabled due to space efficiency?
What is enabled by default in vSAN ESA storage policies unless it is disabled due to space efficiency?
Which feature must be activated to enable Auto-Policy Management in vSAN ESA?
Which feature must be activated to enable Auto-Policy Management in vSAN ESA?
The number of disk stripes per object is significant for vSAN ESA configurations.
The number of disk stripes per object is significant for vSAN ESA configurations.
When a new VM is created on the vSAN ESA datastore, what storage policy is used?
When a new VM is created on the vSAN ESA datastore, what storage policy is used?
VSAN ESA uses _______ within its storage policy management.
VSAN ESA uses _______ within its storage policy management.
What type of RAID does vSAN ESA default policy use to concatenate components?
What type of RAID does vSAN ESA default policy use to concatenate components?
What is a primary advantage of vSAN ESA over traditional vSAN OSA?
What is a primary advantage of vSAN ESA over traditional vSAN OSA?
VSAN ESA supports only NVMe based flash devices.
VSAN ESA supports only NVMe based flash devices.
What does vSAN ESA minimize in terms of I/O processing?
What does vSAN ESA minimize in terms of I/O processing?
VSAN ESA introduces the __________ Filesystem to improve efficiency.
VSAN ESA introduces the __________ Filesystem to improve efficiency.
Which function is performed by vSAN ESA during data ingest?
Which function is performed by vSAN ESA during data ingest?
Compression and encryption in vSAN ESA are performed multiple times to ensure data integrity.
Compression and encryption in vSAN ESA are performed multiple times to ensure data integrity.
Name two benefits of using vSAN ESA's storage pools.
Name two benefits of using vSAN ESA's storage pools.
The new architecture of vSAN ESA is designed to use __________ only.
The new architecture of vSAN ESA is designed to use __________ only.
When using VMware Cloud Foundation, a disaggregated vSAN Max deployment is not supported in a __________ cluster topology.
When using VMware Cloud Foundation, a disaggregated vSAN Max deployment is not supported in a __________ cluster topology.
Match the following vSAN configurations with their characteristics:
Match the following vSAN configurations with their characteristics:
Which VMware Cloud Foundation version allows customers to deploy vSAN Max as their primary storage?
Which VMware Cloud Foundation version allows customers to deploy vSAN Max as their primary storage?
The selection of vSAN HCI or vSAN Max can be retroactively changed after cluster creation.
The selection of vSAN HCI or vSAN Max can be retroactively changed after cluster creation.
What is the primary flexibility offered to customers running VMware Cloud Foundation 5.2 regarding vSAN clusters?
What is the primary flexibility offered to customers running VMware Cloud Foundation 5.2 regarding vSAN clusters?
In vSAN ESA, deduplication and compression are __________ based.
In vSAN ESA, deduplication and compression are __________ based.
What is a limitation of vSAN Max in VMware Cloud Foundation?
What is a limitation of vSAN Max in VMware Cloud Foundation?
What happens during deduplication in vSAN when a unique 4K block cannot be reduced significantly?
What happens during deduplication in vSAN when a unique 4K block cannot be reduced significantly?
VSAN ESA can be upgraded from OSA on the same hardware.
VSAN ESA can be upgraded from OSA on the same hardware.
What is the primary benefit of using vSAN ESA compared to vSAN OSA?
What is the primary benefit of using vSAN ESA compared to vSAN OSA?
Only __________ deployments are supported for vSAN ESA.
Only __________ deployments are supported for vSAN ESA.
Match the following vSAN features with their characteristics:
Match the following vSAN features with their characteristics:
What is a crucial guideline for existing cluster deduplication and compression?
What is a crucial guideline for existing cluster deduplication and compression?
It is possible to manage vSAN ESA environments using vCenter in the same way as OSA.
It is possible to manage vSAN ESA environments using vCenter in the same way as OSA.
What is one common use case for vSAN Max?
What is one common use case for vSAN Max?
VSAN Max provides a consistent management experience across different environments.
VSAN Max provides a consistent management experience across different environments.
What is the minimum memory requirement for full vSAN per host?
What is the minimum memory requirement for full vSAN per host?
Using __________ can achieve better performance in vSAN configurations.
Using __________ can achieve better performance in vSAN configurations.
Match the following storage types with their characteristics:
Match the following storage types with their characteristics:
Which of the following is NOT a guideline for vSAN configurations?
Which of the following is NOT a guideline for vSAN configurations?
Extending the life of existing hardware is a benefit of integrating vSAN Max.
Extending the life of existing hardware is a benefit of integrating vSAN Max.
What is the maximum storage size supported per vSAN Max host?
What is the maximum storage size supported per vSAN Max host?
Deduplication and compression are cluster-wide features in vSAN ESA.
Deduplication and compression are cluster-wide features in vSAN ESA.
What technology is essential for the boot device in vSAN configurations?
What technology is essential for the boot device in vSAN configurations?
To achieve optimal scaling of cloud native applications, compute and storage should be kept __________.
To achieve optimal scaling of cloud native applications, compute and storage should be kept __________.
Which VMware Cloud Foundation version supports the use of vSAN Max as primary storage?
Which VMware Cloud Foundation version supports the use of vSAN Max as primary storage?
What is the recommended storage configuration for better performance in vSAN?
What is the recommended storage configuration for better performance in vSAN?
A disaggregated vSAN Max deployment is not supported in a __________ cluster topology.
A disaggregated vSAN Max deployment is not supported in a __________ cluster topology.
What does removing a host from a vSAN ESA cluster affect?
What does removing a host from a vSAN ESA cluster affect?
The vSAN Max storage presentation is limited to multiple vCenter systems.
The vSAN Max storage presentation is limited to multiple vCenter systems.
VMware Cloud Foundation licensing includes __________ entitlements.
VMware Cloud Foundation licensing includes __________ entitlements.
What is the maximum round-trip time (RTT) allowed between availability zones for networking requirements?
What is the maximum round-trip time (RTT) allowed between availability zones for networking requirements?
VSphere vMotion networks can operate in different layer 2 domains without configuring any gateways.
VSphere vMotion networks can operate in different layer 2 domains without configuring any gateways.
What must be ensured for the vSphere vMotion gateways in a network pool configuration?
What must be ensured for the vSphere vMotion gateways in a network pool configuration?
In a campus area network, the vSphere vMotion, vSAN, and host overlay networks might be __________ across the availability zones.
In a campus area network, the vSphere vMotion, vSAN, and host overlay networks might be __________ across the availability zones.
Match the following networking requirements with their descriptions.
Match the following networking requirements with their descriptions.
Which of the following statements about a stretched cluster is true?
Which of the following statements about a stretched cluster is true?
What is the purpose of a stretched cluster in relation to planned maintenance?
What is the purpose of a stretched cluster in relation to planned maintenance?
Each availability zone in a stretched cluster is designated as a __________.
Each availability zone in a stretched cluster is designated as a __________.
What is the minimum number of ESXi hosts required for a given availability zone in the default management domain?
What is the minimum number of ESXi hosts required for a given availability zone in the default management domain?
For a stretched cluster, all availability zones must contain an unequal number of hosts.
For a stretched cluster, all availability zones must contain an unequal number of hosts.
A stretched cluster can tolerate the failure of an entire __________ zone.
A stretched cluster can tolerate the failure of an entire __________ zone.
What must be done before stretching a VI workload cluster?
What must be done before stretching a VI workload cluster?
What benefit does a stretched cluster provide during power outages?
What benefit does a stretched cluster provide during power outages?
What is a requirement for deduplication and compression to occur on vSAN storage?
What is a requirement for deduplication and compression to occur on vSAN storage?
VSAN ESA can utilize in-place upgrades from OSA on the same hardware.
VSAN ESA can utilize in-place upgrades from OSA on the same hardware.
How many times better performance can vSAN ESA deliver compared to previous technologies?
How many times better performance can vSAN ESA deliver compared to previous technologies?
In the existing cluster deduplication and compression guideline, data must be _______ to the newly formatted disk group.
In the existing cluster deduplication and compression guideline, data must be _______ to the newly formatted disk group.
Match the following vSAN architecture types with their characteristics:
Match the following vSAN architecture types with their characteristics:
Which characteristic is NOT true about vSAN ESA?
Which characteristic is NOT true about vSAN ESA?
What must be done with the disk groups before deduplicating and compressing data?
What must be done with the disk groups before deduplicating and compressing data?
What is the main storage option supported in VMware Cloud Foundation 5.2?
What is the main storage option supported in VMware Cloud Foundation 5.2?
Health alerts in vSAN ESA are generated in response to policy compliance issues.
Health alerts in vSAN ESA are generated in response to policy compliance issues.
What is the storage size range supported per vSAN Max host?
What is the storage size range supported per vSAN Max host?
Entering Maintenance Mode for a vSAN can take several hours.
Entering Maintenance Mode for a vSAN can take several hours.
Removing a host from a vSAN ESA cluster can make the policy __________.
Removing a host from a vSAN ESA cluster can make the policy __________.
Match the following storage deployment types with their characteristics:
Match the following storage deployment types with their characteristics:
Which of the following limitations applies to a disaggregated vSAN Max deployment?
Which of the following limitations applies to a disaggregated vSAN Max deployment?
Match the following types of storage controller selections with their benefits:
Match the following types of storage controller selections with their benefits:
What should be considered when enabling vSAN Reserved Capacity?
What should be considered when enabling vSAN Reserved Capacity?
What generates health alerts in the vSAN ESA environment?
What generates health alerts in the vSAN ESA environment?
All applications that require iSCSI targets are served by vSAN iSCSI Services.
All applications that require iSCSI targets are served by vSAN iSCSI Services.
The selection of vSAN HCI or vSAN Max can be changed after the cluster is created.
The selection of vSAN HCI or vSAN Max can be changed after the cluster is created.
VSAN Max can provide a storage range of __________ TB per host ranging from 20 to 360.
VSAN Max can provide a storage range of __________ TB per host ranging from 20 to 360.
Which of the following statements is true about vSAN stretched clusters?
Which of the following statements is true about vSAN stretched clusters?
VSAN is designed for ___ storage policy based management.
VSAN is designed for ___ storage policy based management.
What is the maximum round-trip time (RTT) allowed between availability zones and the witness host with 11 or more hosts in the availability zone?
What is the maximum round-trip time (RTT) allowed between availability zones and the witness host with 11 or more hosts in the availability zone?
The vSAN and Management networks don't require routing to the witness site.
The vSAN and Management networks don't require routing to the witness site.
What must be created to commission hosts in the 2nd AZ?
What must be created to commission hosts in the 2nd AZ?
The vSAN Witness host can be a physical ESXi host or the vSAN witness ______.
The vSAN Witness host can be a physical ESXi host or the vSAN witness ______.
Match the following components with their role in a stretched cluster:
Match the following components with their role in a stretched cluster:
What is the function of a witness site in a stretched cluster?
What is the function of a witness site in a stretched cluster?
What characteristic does a fault domain provide in a stretched cluster?
What characteristic does a fault domain provide in a stretched cluster?
The management cluster must be stretched before any VI workload clusters are stretched.
The management cluster must be stretched before any VI workload clusters are stretched.
How many ESXi hosts are required at minimum in a VI workload domain?
How many ESXi hosts are required at minimum in a VI workload domain?
Each availability zone in a stretched cluster is configured as a __________.
Each availability zone in a stretched cluster is configured as a __________.
What is the main benefit of using a stretched cluster?
What is the main benefit of using a stretched cluster?
Which configuration does vSAN OSA support?
Which configuration does vSAN OSA support?
VSAN ESA allows the use of SAS and SATA devices.
VSAN ESA allows the use of SAS and SATA devices.
What is the maximum number of disks supported per vSAN host in vSAN OSA?
What is the maximum number of disks supported per vSAN host in vSAN OSA?
Match the following features with their corresponding definitions:
Match the following features with their corresponding definitions:
What is a requirement for deploying vSAN ESA?
What is a requirement for deploying vSAN ESA?
Compression in vSAN OSA is enabled by default.
Compression in vSAN OSA is enabled by default.
VSAN ESA can only be deployed in a __________ deployment.
VSAN ESA can only be deployed in a __________ deployment.
What is the calculated overhead for vSAN metadata?
What is the calculated overhead for vSAN metadata?
Using FTT=1 in production environments does not require a full data migration for workloads.
Using FTT=1 in production environments does not require a full data migration for workloads.
What percentage of slack space is recommended when sizing for a production environment?
What percentage of slack space is recommended when sizing for a production environment?
The effective capacity is calculated for RAID 5 with FTT = __________.
The effective capacity is calculated for RAID 5 with FTT = __________.
Match the following vSAN components with their descriptions:
Match the following vSAN components with their descriptions:
What is the minimum number of ESXi hosts required for FTT of 1 with RAID-5?
What is the minimum number of ESXi hosts required for FTT of 1 with RAID-5?
Deduplication and compression work together to reduce storage space in vSAN.
Deduplication and compression work together to reduce storage space in vSAN.
How many ESXi hosts are required for FTT of 2 when using RAID-1?
How many ESXi hosts are required for FTT of 2 when using RAID-1?
For RAID-6 configurations, a minimum of ______ ESXi hosts is required.
For RAID-6 configurations, a minimum of ______ ESXi hosts is required.
Match the following RAID levels with their corresponding failures to tolerate (FTT):
Match the following RAID levels with their corresponding failures to tolerate (FTT):
What storage policy tab allows monitoring of compliance status for all objects in a policy?
What storage policy tab allows monitoring of compliance status for all objects in a policy?
What is the role of deduplication in vSAN?
What is the role of deduplication in vSAN?
Which of the following is a requirement for using vSAN ESA?
Which of the following is a requirement for using vSAN ESA?
VSAN ESA supports the conversion from vSAN OSA to vSAN ESA.
VSAN ESA supports the conversion from vSAN OSA to vSAN ESA.
What type of storage does the vSAN datastore use when utilizing vSAN ESA?
What type of storage does the vSAN datastore use when utilizing vSAN ESA?
Cross vCenter Cross Cluster Capacity Sharing is supported from ______ but not in VCF 5.2.
Cross vCenter Cross Cluster Capacity Sharing is supported from ______ but not in VCF 5.2.
Match the features of vSAN ESA with their characteristics:
Match the features of vSAN ESA with their characteristics:
What option is available for users in air-gapped environments when working with vSAN ESA?
What option is available for users in air-gapped environments when working with vSAN ESA?
VSAN Health Check Plugin performs automatic hardware verification.
VSAN Health Check Plugin performs automatic hardware verification.
What type of environments might benefit from using a proxy server for HCL management?
What type of environments might benefit from using a proxy server for HCL management?
In vSAN ESA, effective capacity calculations for RAID 5 support only FTT=______.
In vSAN ESA, effective capacity calculations for RAID 5 support only FTT=______.
Match the vSAN ESA requirements with their descriptions:
Match the vSAN ESA requirements with their descriptions:
What needs to be checked for vSAN ESA during the host commissioning process?
What needs to be checked for vSAN ESA during the host commissioning process?
Hardware compatibility can be verified only after commissioning a host for vSAN ESA.
Hardware compatibility can be verified only after commissioning a host for vSAN ESA.
What feature can be used to automatically claim disks for vSAN ESA?
What feature can be used to automatically claim disks for vSAN ESA?
The minimum requirement for commissioning a vSAN ESA host is a compatible host version and _______.
The minimum requirement for commissioning a vSAN ESA host is a compatible host version and _______.
During the creation of a new VI workload domain with vSAN ESA, which is automatically done?
During the creation of a new VI workload domain with vSAN ESA, which is automatically done?
Match the following vSAN ESA processes with their descriptions:
Match the following vSAN ESA processes with their descriptions:
VSAN Direct is supported with vSAN ESA.
VSAN Direct is supported with vSAN ESA.
What is the purpose of the SDDC Manager in relation to vSAN ESA?
What is the purpose of the SDDC Manager in relation to vSAN ESA?
The _______ option must be enabled in the VMware Cloud Foundation UI for vSAN ESA during VI workload domain creation.
The _______ option must be enabled in the VMware Cloud Foundation UI for vSAN ESA during VI workload domain creation.
What happens if the disk claim fails during cluster creation?
What happens if the disk claim fails during cluster creation?
What is one of the main goals of using storage policies in vSAN?
What is one of the main goals of using storage policies in vSAN?
The default policy in vSAN allows for two failures to tolerate.
The default policy in vSAN allows for two failures to tolerate.
What is required to implement a RAID-1 policy in vSAN?
What is required to implement a RAID-1 policy in vSAN?
The failures to tolerate in vSAN are established through __________ on virtual machines.
The failures to tolerate in vSAN are established through __________ on virtual machines.
Match the following aspects of vSAN with their descriptions:
Match the following aspects of vSAN with their descriptions:
Which of the following is not a component of storage policies in vSAN?
Which of the following is not a component of storage policies in vSAN?
What minimum number of ESXi hosts is needed for establishing a default failure to tolerate policy?
What minimum number of ESXi hosts is needed for establishing a default failure to tolerate policy?
Which of the following disk configurations is supported by vSAN OSA?
Which of the following disk configurations is supported by vSAN OSA?
VSAN ESA and vSAN OSA support the same maximum number of disks per host.
VSAN ESA and vSAN OSA support the same maximum number of disks per host.
What makes vSAN ESA's compression more efficient than vSAN OSA's compression?
What makes vSAN ESA's compression more efficient than vSAN OSA's compression?
VSAN ESA has a minimum requirement of _____ GB of RAM per host.
VSAN ESA has a minimum requirement of _____ GB of RAM per host.
Match the following features with their description:
Match the following features with their description:
Which feature is NOT available in vSAN ESA?
Which feature is NOT available in vSAN ESA?
VSAN ESA can be deployed in both greenfield and brownfield environments.
VSAN ESA can be deployed in both greenfield and brownfield environments.
What is the minimum number of NVMe-based SSDs required per host in a vSAN ESA configuration?
What is the minimum number of NVMe-based SSDs required per host in a vSAN ESA configuration?
What is the minimum number of ESXi hosts required for a RAID-1 configuration with a Failures to Tolerate (FTT) of 2?
What is the minimum number of ESXi hosts required for a RAID-1 configuration with a Failures to Tolerate (FTT) of 2?
RAID-5 configurations can tolerate two failures with a minimum of 4 ESXi hosts.
RAID-5 configurations can tolerate two failures with a minimum of 4 ESXi hosts.
Which vSphere version is supported only by vSAN ESA?
Which vSphere version is supported only by vSAN ESA?
What storage technique reduces redundant data blocks in a disk group?
What storage technique reduces redundant data blocks in a disk group?
In vSAN OSA, compression is __________ by default.
In vSAN OSA, compression is __________ by default.
Match the RAID configurations with their respective Failures to Tolerate (FTT):
Match the RAID configurations with their respective Failures to Tolerate (FTT):
What erasure coding savings percentage is achieved compared to mirroring at 1.33x object size?
What erasure coding savings percentage is achieved compared to mirroring at 1.33x object size?
Compression is independent of deduplication in storage management systems.
Compression is independent of deduplication in storage management systems.
What is the relationship between VM encryption and deduplication/compression in vSAN?
What is the relationship between VM encryption and deduplication/compression in vSAN?
To enable deduplication and compression, it is required that an _____ architecture is used.
To enable deduplication and compression, it is required that an _____ architecture is used.
What is required for enabling additional clusters with vSAN ESA?
What is required for enabling additional clusters with vSAN ESA?
What plugin is responsible for verifying the underlying hardware for vSAN?
What plugin is responsible for verifying the underlying hardware for vSAN?
VSAN ESA clusters require __________ to be enabled.
VSAN ESA clusters require __________ to be enabled.
Match the following vSAN capabilities with their descriptions:
Match the following vSAN capabilities with their descriptions:
Which of the following statements about vSAN ESA default storage policies is correct?
Which of the following statements about vSAN ESA default storage policies is correct?
What does FTT stand for in the context of vSAN ESA policies?
What does FTT stand for in the context of vSAN ESA policies?
Match the following RAID policies with their characteristics:
Match the following RAID policies with their characteristics:
What must be enabled in VCF to apply the benefits of Auto Policy Management?
What must be enabled in VCF to apply the benefits of Auto Policy Management?
Compression in vSAN ESA can be disabled for space efficiency reasons.
Compression in vSAN ESA can be disabled for space efficiency reasons.
Describe the role of Auto-Policy Management in vSAN ESA.
Describe the role of Auto-Policy Management in vSAN ESA.
The default vSAN ESA policy for RAID 5 provides _______.
The default vSAN ESA policy for RAID 5 provides _______.
Which storage policy characteristic is NOT related to vSAN ESA?
Which storage policy characteristic is NOT related to vSAN ESA?
Flashcards
vSAN Deduplication
vSAN Deduplication
A data reduction technique that removes redundant data blocks from a disk group, improving storage efficiency.
4K Block Size
4K Block Size
A common data block size used in vSAN to facilitate deduplication
VSAN Compression
VSAN Compression
A process for reducing data size by encoding redundant data patterns after deduplication.
vSAN ESA
vSAN ESA
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vSAN OSA
vSAN OSA
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NVMe
NVMe
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Greenfield Deployment
Greenfield Deployment
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vSAN OSA Disk Support
vSAN OSA Disk Support
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vSAN ESA Disk Support
vSAN ESA Disk Support
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vSAN OSA Disk Structure
vSAN OSA Disk Structure
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vSAN ESA Disk Structure
vSAN ESA Disk Structure
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vSAN OSA Maximum Disks
vSAN OSA Maximum Disks
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vSAN ESA Supported vSphere Versions
vSAN ESA Supported vSphere Versions
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vSAN ESA Deployment Constraints
vSAN ESA Deployment Constraints
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vSAN ESA Hardware Requirements
vSAN ESA Hardware Requirements
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vSAN ESA Disk Size Requirement
vSAN ESA Disk Size Requirement
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Stretched Cluster
Stretched Cluster
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Witness Site
Witness Site
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Fault Domain
Fault Domain
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Minimum Hosts for vSAN
Minimum Hosts for vSAN
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Stretched Cluster Use Cases
Stretched Cluster Use Cases
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vSAN ESA Deduplication
vSAN ESA Deduplication
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vSAN ESA Host Removal
vSAN ESA Host Removal
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vSAN Max Support
vSAN Max Support
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vSAN Max Deployment
vSAN Max Deployment
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vSAN Max Storage Capacity
vSAN Max Storage Capacity
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vSAN HCI vs vSAN Max
vSAN HCI vs vSAN Max
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Stretched Cluster Limitation
Stretched Cluster Limitation
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Cluster Creation Setting
Cluster Creation Setting
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vSAN Max vCenter Limitation
vSAN Max vCenter Limitation
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Storage-Only Clusters
Storage-Only Clusters
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vSAN Metadata Overhead
vSAN Metadata Overhead
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Slack Space
Slack Space
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Production Environment Slack Space
Production Environment Slack Space
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Effective Capacity (RAID 5)
Effective Capacity (RAID 5)
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Formatting Overhead
Formatting Overhead
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Storage Policy Based Management (SPBM)
Storage Policy Based Management (SPBM)
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FTT
FTT
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Maintenance Mode
Maintenance Mode
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Stretched vSAN Clusters
Stretched vSAN Clusters
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Availability Zones
Availability Zones
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Raid-1 Minimum Hosts
Raid-1 Minimum Hosts
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Raid-5 Minimum Hosts
Raid-5 Minimum Hosts
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Raid-6 Minimum Hosts
Raid-6 Minimum Hosts
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vSAN Deduplication & Compression
vSAN Deduplication & Compression
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vSAN Compliance
vSAN Compliance
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vSAN Storage Policy Based Management
vSAN Storage Policy Based Management
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vSAN Disk Groups
vSAN Disk Groups
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vSAN Storage Pools
vSAN Storage Pools
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vSAN ESA Compression
vSAN ESA Compression
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vSAN OSA Compression
vSAN OSA Compression
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vSAN ESA Encryption
vSAN ESA Encryption
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vSAN OSA Encryption
vSAN OSA Encryption
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Minimum Hosts Requirements
Minimum Hosts Requirements
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vSAN OSA Single Point of Failure
vSAN OSA Single Point of Failure
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vSAN ESA Storage Pools Resiliency
vSAN ESA Storage Pools Resiliency
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vSAN ESA Disk Architecture
vSAN ESA Disk Architecture
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vSAN ESA I/O Flow
vSAN ESA I/O Flow
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vSAN ESA Supported Disk Types
vSAN ESA Supported Disk Types
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vSAN ESA I/O Engine Advantages
vSAN ESA I/O Engine Advantages
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vSAN LFS (Log-Structured File System)
vSAN LFS (Log-Structured File System)
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vSAN LFS Write Process
vSAN LFS Write Process
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vSAN ESA Single-Tier Architecture
vSAN ESA Single-Tier Architecture
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vSAN ESA Features for Streamlined Operations
vSAN ESA Features for Streamlined Operations
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vSAN Auto-Policy Management
vSAN Auto-Policy Management
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vSAN ESA Default Storage Policy
vSAN ESA Default Storage Policy
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vSAN ESA Storage Policy Features
vSAN ESA Storage Policy Features
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Granular Storage Policies
Granular Storage Policies
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Per-Object Storage Policies
Per-Object Storage Policies
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vSAN ESA Capacity Reporting
vSAN ESA Capacity Reporting
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vSAN ESA Raid-0 Concatenation
vSAN ESA Raid-0 Concatenation
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vSAN ESA Host Removal Impact
vSAN ESA Host Removal Impact
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Policy-Driven Storage
Policy-Driven Storage
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What are the goals of Storage Policies?
What are the goals of Storage Policies?
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What are the components of a vSAN object?
What are the components of a vSAN object?
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What is Failure to Tolerate (FTT)?
What is Failure to Tolerate (FTT)?
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What are the methods used for Failure to Tolerate (FTT)?
What are the methods used for Failure to Tolerate (FTT)?
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What are the minimum ESXi hosts needed for vSAN?
What are the minimum ESXi hosts needed for vSAN?
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vSAN ESA Storage Pool
vSAN ESA Storage Pool
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vSAN ESA I/O Engine
vSAN ESA I/O Engine
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vSAN ESA vs vSAN OSA
vSAN ESA vs vSAN OSA
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vSAN ESA Auto-Policy Management
vSAN ESA Auto-Policy Management
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vSAN ESA Storage Policies
vSAN ESA Storage Policies
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Availability Zone Failure
Availability Zone Failure
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Planned Maintenance
Planned Maintenance
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Auto-Policy Management
Auto-Policy Management
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Storage Policies in vSAN
Storage Policies in vSAN
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Failure to Tolerate (FTT)
Failure to Tolerate (FTT)
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Minimum vSAN ESXi Hosts
Minimum vSAN ESXi Hosts
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vSAN ESA (Express Storage Architecture)
vSAN ESA (Express Storage Architecture)
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vSAN OSA (Original Storage Architecture)
vSAN OSA (Original Storage Architecture)
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Raid-0 in vSAN ESA
Raid-0 in vSAN ESA
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What are the advantages of vSAN ESA?
What are the advantages of vSAN ESA?
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What are the key features of vSAN ESA's I/O engine?
What are the key features of vSAN ESA's I/O engine?
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What is vSAN's Log-Structured File System (LFS)?
What is vSAN's Log-Structured File System (LFS)?
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What happens during the write process in vSAN LFS?
What happens during the write process in vSAN LFS?
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How does vSAN ESA handle encryption and compression?
How does vSAN ESA handle encryption and compression?
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What is the difference between vSAN ESA and vSAN OSA?
What is the difference between vSAN ESA and vSAN OSA?
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What is vSAN Auto-Policy Management?
What is vSAN Auto-Policy Management?
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Management Domain Protection
Management Domain Protection
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Stretching Networks Across Availability Zones
Stretching Networks Across Availability Zones
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vMotion Gateway Configuration
vMotion Gateway Configuration
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Networking Requirements for Availability Zones
Networking Requirements for Availability Zones
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vMotion Network Configuration
vMotion Network Configuration
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What is vSAN ESA?
What is vSAN ESA?
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What is vSAN ESA I/O Engine?
What is vSAN ESA I/O Engine?
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What is vSAN ESA Storage Pools?
What is vSAN ESA Storage Pools?
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What is vSAN ESA Auto-Policy Management?
What is vSAN ESA Auto-Policy Management?
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Difference: ESA vs. OSA
Difference: ESA vs. OSA
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vSAN ESA Compression & Encryption
vSAN ESA Compression & Encryption
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vSAN Max Use Cases
vSAN Max Use Cases
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Stretched Cluster with vSAN Max
Stretched Cluster with vSAN Max
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vSAN Max Capacity Limits
vSAN Max Capacity Limits
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vSAN Max Limitations
vSAN Max Limitations
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vSAN Max: Storage-Only Clusters
vSAN Max: Storage-Only Clusters
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Management Domain
Management Domain
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Workload Domain
Workload Domain
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Low Recovery Time Objective (RTO)
Low Recovery Time Objective (RTO)
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Mgmt Cluster Stretched First
Mgmt Cluster Stretched First
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vSAN ESA Advantages
vSAN ESA Advantages
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vSAN Max Capacity
vSAN Max Capacity
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vSAN Max Cluster Type
vSAN Max Cluster Type
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Stretching a vSAN Cluster
Stretching a vSAN Cluster
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Witness Host in a Stretched Cluster
Witness Host in a Stretched Cluster
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Commissioning Hosts in Availability Zone 2
Commissioning Hosts in Availability Zone 2
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Stretch Cluster Requirement: RTT & Hosts
Stretch Cluster Requirement: RTT & Hosts
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vSAN Network Requirements for Stretched Cluster
vSAN Network Requirements for Stretched Cluster
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Availability Zone (AZ)
Availability Zone (AZ)
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SPBM (Storage Policy Based Management)
SPBM (Storage Policy Based Management)
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FTT (Failure to Tolerate)
FTT (Failure to Tolerate)
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vSAN Enterprise License
vSAN Enterprise License
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Minimum vSAN Hosts
Minimum vSAN Hosts
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RAID Levels in vSAN
RAID Levels in vSAN
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Cluster-Specific Default Storage Policy
Cluster-Specific Default Storage Policy
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What is vSAN metadata overhead?
What is vSAN metadata overhead?
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What is vSAN slack space?
What is vSAN slack space?
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Why consider FTT=2 for production?
Why consider FTT=2 for production?
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What are Availability Zones in stretched vSAN?
What are Availability Zones in stretched vSAN?
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Why choose pass-through storage?
Why choose pass-through storage?
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What are Storage Policy Goals?
What are Storage Policy Goals?
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vSAN Object Components
vSAN Object Components
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FTT Methods
FTT Methods
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Minimum ESXi Hosts for vSAN
Minimum ESXi Hosts for vSAN
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What is the main advantage of vSAN ESA over vSAN OSA?
What is the main advantage of vSAN ESA over vSAN OSA?
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vSAN ESA LFS (Log-Structured File System)
vSAN ESA LFS (Log-Structured File System)
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Storage Policies
Storage Policies
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vSAN ESA RAID-0
vSAN ESA RAID-0
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Study Notes
VSAN Policy Driven Storage System
- With SPBM (Storage Based Policy Management) – VCF assets use storage that guarantees specified level of capacity, performance, availability, and redundancy.
- Storage policies help categorize storage based on desired service levels, provision VM disks for optimal configuration, protect data through object-based fault tolerance.
Traditional VM Storage
- Vmdk file points to a flat.vmdk file, which points to a storage array.
- Storage administrators build logical units (luns) based on criteria.
- Physical disks, how they are built, numbers of disks, mirroring are unknown.
- Hard disk capacity is known.
Policy Driven Object Based Storage
- VSAN policies protect components such as NSX, SDDC Manager, workload VMs, etc.
- VM storage policies apply to VM home namespaces, VMDK objects, thin-provisioned VM swap objects, one or more VM snapshot delta objects, one or more VM memory objects, VSAN performance data objects, VSAN File System Service.
- Objects are made up of components and need redundancy.
- Needs to be placed on multiple ESXi hosts for redundancy (e.g RAID-1)
VSAN Storage Policy Space Consumption
- Comparing RAID 1 mirroring and RAID 5/6 erasure coding.
- Erasure coding involves more overhead in IOPS and network bandwidth.
- Need extra ESXi hosts for failures to tolerate (FTT) methods.
- Minimum hosts required vary based on FTT (e.g., FTT of 0 or 1 = 3 ESXi hosts minimum for Raid-1).
- RAID 5/6 provide significant capacity savings compared to mirroring, but erasure coding incurs additional overhead in IOPS and network bandwidth.
- 1.33x object size = 33% erasure coding savings versus mirroring
VSAN Failures to Tolerate (FTT)
- By default, VMware Cloud Foundation (VCF) protects against one failure.
- FTT values of 0, 1 or 2 can be selected.
- Modifying the vSAN Default Storage Policy is recommended by creating a new copy and applying the changes in stages.
- Host count requirements vary based on the failures-to-tolerate setting.
- SDDC Manager always configures RAID 1 (mirroring).
Deduplication and Compression
- Deduplication and compression reduces the amount of data.
- Ensures only a single instance of redundant data is used per disk group.
- Requires all-flash architecture.
- Deduplication removes redundant data blocks while compression reduces data in each block.
- This is applied to reduce space and is done during data staging from cache to capacity.
vSAN (ESA - Express Storage Architecture)
- Uses current and future hardware.
- Addresses bottlenecks that have appeared in data centers through newer, faster storage.
- Focuses on data security, performance, and space efficiency.
- Enables vSAN to utilize current and future hardware.
- NVMe is a high-performance, non-uniform memory access (NUMA) protocol.
vSAN Configuration
- vSAN ESA configuration does not use disk groups but uses storage pools, which eliminates single point of failure and improves resilience.
- Storage policies can be changed or modified after applying.
- Compression is enabled by default unless disabled.
- Granular storage policies are not supported for VSAN ESA.
- vSAN ESA Auto-Policy Management configures optimized storage based on cluster size.
vSAN Max
- vSAN Max is supported as the primary storage in VCF 5.2 and vSAN 8 U3.
- It's suitable for deploying clusters as aggregated vSAN HCI clusters or disaggregated vSAN Max clusters.
- No virtual machines in the vSAN Max cluster.
vSAN I/O Engine
-
vSAN ESA uses a highly parallel and efficient I/O engine.
-
Data is compressed, encrypted, and checksums at ingest to reduce CPU resources, network traffic.
vSAN Log-Structured File System (LFS)
- Provides benefits like reduced I/O amplifications and low overhead.
- Allows for high-performance snapshots.
- Ingests smaller I/O from guest VMs and packages them into larger blocks.
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Description
Test your knowledge on vSAN ESA and OSA architectures, including their features, compression methods, and deployment requirements. This quiz covers important guidelines and performance aspects of vSAN systems.
