Podcast
Questions and Answers
What is one primary benefit of using vSAN Max for storage refreshes?
What is one primary benefit of using vSAN Max for storage refreshes?
- Decreases application licensing costs
- Replaces all hardware components
- Increases compute cluster size
- Maintains storage independence from compute (correct)
VSAN Max requires a minimum of 64GB of memory per host for full functionality.
VSAN Max requires a minimum of 64GB of memory per host for full functionality.
False (B)
What is the primary purpose of deduplication and compression in vSAN?
What is the primary purpose of deduplication and compression in vSAN?
To optimize storage space utilization
VSAN Max is particularly beneficial for storing large data sets for ___ models.
VSAN Max is particularly beneficial for storing large data sets for ___ models.
Match the following vSAN design considerations with their descriptions:
Match the following vSAN design considerations with their descriptions:
Which of the following supports hybrid configurations?
Which of the following supports hybrid configurations?
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 maximum number of disks supported per vSAN OSA host?
What is the maximum number of disks supported per vSAN OSA host?
VSAN ESA requires a minimum of ______ CPUs per host.
VSAN ESA requires a minimum of ______ CPUs per host.
Match the following vSAN features with their descriptions.
Match the following vSAN features with their descriptions.
What is a key difference in compression scope between vSAN OSA and ESA?
What is a key difference in compression scope between vSAN OSA and ESA?
Deduplication is available for vSAN ESA.
Deduplication is available for vSAN ESA.
Which feature is enabled by default in vSAN ESA storage policies?
Which feature is enabled by default in vSAN ESA storage policies?
Granular storage policies (per VMDK) are supported in vSAN ESA.
Granular storage policies (per VMDK) are supported in vSAN ESA.
What does FTT stand for in the context of vSAN ESA storage policies?
What does FTT stand for in the context of vSAN ESA storage policies?
The default vSAN ESA storage policies provide __________ when using Raid 6.
The default vSAN ESA storage policies provide __________ when using Raid 6.
Which statement about Auto-Policy Management in vSAN ESA is true?
Which statement about Auto-Policy Management in vSAN ESA is true?
The number of disk stripes per object is irrelevant for vSAN ESA.
The number of disk stripes per object is irrelevant for vSAN ESA.
What happens when a new VM is created on the vSAN ESA datastore?
What happens when a new VM is created on the vSAN ESA datastore?
VSAN ESA supports __________ storage policies.
VSAN ESA supports __________ storage policies.
Match the storage policy characteristics with their descriptions:
Match the storage policy characteristics with their descriptions:
What is the default storage policy when enabling Auto-Policy Management on a cluster?
What is the default storage policy when enabling Auto-Policy Management on a cluster?
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 is required to create additional clusters with vSAN ESA?
What is required to create additional clusters with vSAN ESA?
The vSAN datastore uses the new vSAN _____ storage type.
The vSAN datastore uses the new vSAN _____ storage type.
Match the following features with their descriptions:
Match the following features with their descriptions:
Which of the following is NOT a requirement for vSAN ESA clusters?
Which of the following is NOT a requirement for vSAN ESA clusters?
What is the main feature of deduplication in vSAN ESA clusters?
What is the main feature of deduplication in vSAN ESA clusters?
Automatic verification of underlying hardware can only be done through manual checks.
Automatic verification of underlying hardware can only be done through manual checks.
Removing a host from a vSAN ESA cluster will keep the storage policy compliant.
Removing a host from a vSAN ESA cluster will keep the storage policy compliant.
What must customers running VMware Cloud Foundation 5.2 decide regarding cluster deployment?
What must customers running VMware Cloud Foundation 5.2 decide regarding cluster deployment?
What does HCL stand for in the context of vSAN ESA?
What does HCL stand for in the context of vSAN ESA?
To auto-claim disks, the _____ feature must be turned on.
To auto-claim disks, the _____ feature must be turned on.
The vSAN ESA default storage policy is created based on the number of ______.
The vSAN ESA default storage policy is created based on the number of ______.
Match the following storage options with their descriptions:
Match the following storage options with their descriptions:
Which of the following operations is supported with vSAN ESA?
Which of the following operations is supported with vSAN ESA?
What is the maximum storage capacity per vSAN Max host?
What is the maximum storage capacity per vSAN Max host?
Disaggregated vSAN Max deployment is supported in a stretched cluster topology.
Disaggregated vSAN Max deployment is supported in a stretched cluster topology.
What happens if a user tries to change the deployment type of a cluster after creation?
What happens if a user tries to change the deployment type of a cluster after creation?
VSAN Max storage presentation is limited to within the same ______.
VSAN Max storage presentation is limited to within the same ______.
Which of the following statements about the host decommission workflow in SDDC Manager is true?
Which of the following statements about the host decommission workflow in SDDC Manager is true?
Which feature of vSAN allows categorization of storage based on desired levels of service?
Which feature of vSAN allows categorization of storage based on desired levels of service?
Objects in vSAN can be treated differently according to policies applied to them.
Objects in vSAN can be treated differently according to policies applied to them.
What is the minimum number of ESXi hosts required to ensure Failures to Tolerate (FTT) in a vSAN environment?
What is the minimum number of ESXi hosts required to ensure Failures to Tolerate (FTT) in a vSAN environment?
A Flat.VMDK in a vSAN file is considered an __________ and is made up of different components.
A Flat.VMDK in a vSAN file is considered an __________ and is made up of different components.
Match the failure tolerance methods with their descriptions:
Match the failure tolerance methods with their descriptions:
What does a default Failures to Tolerate (FTT) policy typically guarantee in a vSAN configuration?
What does a default Failures to Tolerate (FTT) policy typically guarantee in a vSAN configuration?
VSAN allows for different rules to be applied directly on Virtual Machines (VMs) to create policies.
VSAN allows for different rules to be applied directly on Virtual Machines (VMs) to create policies.
What happens to the vSAN ESA default storage policy when a host is removed from the cluster?
What happens to the vSAN ESA default storage policy when a host is removed from the cluster?
VSAN Max can be used in a stretched cluster topology with VMware Cloud Foundation 5.2.
VSAN Max can be used in a stretched cluster topology with VMware Cloud Foundation 5.2.
What is the range of storage capacity per vSAN Max host?
What is the range of storage capacity per vSAN Max host?
Removing a host from a vSAN ESA cluster can trigger __________ alerts in the vSAN Health UI.
Removing a host from a vSAN ESA cluster can trigger __________ alerts in the vSAN Health UI.
Match the deployment types with their descriptions:
Match the deployment types with their descriptions:
Which of the following configurations does vSAN OSA support?
Which of the following configurations does vSAN OSA support?
VSAN ESA can only be deployed in a brownfield environment.
VSAN ESA can only be deployed in a brownfield environment.
VSAN ESA requires a minimum of ______ GB of RAM.
VSAN ESA requires a minimum of ______ GB of RAM.
Match the following disk configurations with their characteristics:
Match the following disk configurations with their characteristics:
Which statement describes how compression works in vSAN ESA?
Which statement describes how compression works in vSAN ESA?
VSAN OSA supports deduplication capabilities.
VSAN OSA supports deduplication capabilities.
Name one key difference in encryption between vSAN OSA and vSAN ESA.
Name one key difference in encryption between vSAN OSA and vSAN ESA.
VSAN ESA does not support _____ and SATA devices.
VSAN ESA does not support _____ and SATA devices.
Which requirement is NOT needed for vSAN ESA deployment?
Which requirement is NOT needed for vSAN ESA deployment?
What must happen to a disk group before deduplication and compression can be applied?
What must happen to a disk group before deduplication and compression can be applied?
VSAN supports in-place upgrades from Original Storage Architecture (OSA) to Express Storage Architecture (ESA).
VSAN supports in-place upgrades from Original Storage Architecture (OSA) to Express Storage Architecture (ESA).
What is the minimum requirement for disk size reduction before vSAN stores compressed data?
What is the minimum requirement for disk size reduction before vSAN stores compressed data?
VSAN ESA delivers up to _____ better performance with current NVMe technology.
VSAN ESA delivers up to _____ better performance with current NVMe technology.
Match the following vSAN ESA characteristics with their descriptions:
Match the following vSAN ESA characteristics with their descriptions:
Which of the following is a characteristic of vSAN ESA?
Which of the following is a characteristic of vSAN ESA?
What does vSAN stand for?
What does vSAN stand for?
In vSAN, deduplication is applied after compression.
In vSAN, deduplication is applied after compression.
What is a requirement for vSAN ESA?
What is a requirement for vSAN ESA?
What does vSAN ESA improve in terms of disk usage?
What does vSAN ESA improve in terms of disk usage?
A single disk failure in vSAN ESA affects the entire storage pool.
A single disk failure in vSAN ESA affects the entire storage pool.
What type of devices does vSAN ESA support?
What type of devices does vSAN ESA support?
The new storage architecture for vSAN 8 uses ______ to simplify the I/O process.
The new storage architecture for vSAN 8 uses ______ to simplify the I/O process.
Match the following vSAN ESA attributes with their descriptions:
Match the following vSAN ESA attributes with their descriptions:
Which of the following is a benefit of the vSAN Log-Structured File System?
Which of the following is a benefit of the vSAN Log-Structured File System?
Checksum calculations are only performed at the end of data processing in vSAN ESA.
Checksum calculations are only performed at the end of data processing in vSAN ESA.
What is the effect of compressing data at ingest in vSAN ESA?
What is the effect of compressing data at ingest in vSAN ESA?
VSAN ESA allows for the reduction of I/O flow by eliminating the need for a ______ architecture.
VSAN ESA allows for the reduction of I/O flow by eliminating the need for a ______ architecture.
What is a key feature of the vSAN ESA architecture?
What is a key feature of the vSAN ESA architecture?
What is the minimum number of ESXi hosts required for a Failures to Tolerate (FTT) of 2 when using Raid-1?
What is the minimum number of ESXi hosts required for a Failures to Tolerate (FTT) of 2 when using Raid-1?
In a vSAN environment, deduplication requires a hybrid architecture.
In a vSAN environment, deduplication requires a hybrid architecture.
What does FTT stand for in the context of vSAN?
What does FTT stand for in the context of vSAN?
To achieve __________ with Raid-5, a minimum of 4 ESXi hosts is required.
To achieve __________ with Raid-5, a minimum of 4 ESXi hosts is required.
Match the following storage types with their Failures to Tolerate (FTT) requirements:
Match the following storage types with their Failures to Tolerate (FTT) requirements:
How much storage capacity is consumed for a FTT of 1 when using Raid-1?
How much storage capacity is consumed for a FTT of 1 when using Raid-1?
Redundant copies of a block are deduplicated across different disk groups.
Redundant copies of a block are deduplicated across different disk groups.
What is the maximum allowable round-trip time (RTT) between availability zones for networking requirements?
What is the maximum allowable round-trip time (RTT) between availability zones for networking requirements?
VSphere vMotion VMkernel ports must reside in the same layer 2 domain for proper configuration.
VSphere vMotion VMkernel ports must reside in the same layer 2 domain for proper configuration.
What is required for the Host Overlay Transport in each availability zone?
What is required for the Host Overlay Transport in each availability zone?
The vSphere vMotion, vSAN, host overlay, and management networks must be able to _____ between availability zones if they are not stretched.
The vSphere vMotion, vSAN, host overlay, and management networks must be able to _____ between availability zones if they are not stretched.
Match the components with their respective roles in network configuration:
Match the components with their respective roles in network configuration:
What feature does vSAN ESA use to improve data management?
What feature does vSAN ESA use to improve data management?
In vSAN ESA, a failure of a cache disk can bring down the entire storage pool.
In vSAN ESA, a failure of a cache disk can bring down the entire storage pool.
VSAN ESA compresses data once at ______ to reduce network traffic.
VSAN ESA compresses data once at ______ to reduce network traffic.
Match the following features of vSAN ESA with their descriptions:
Match the following features of vSAN ESA with their descriptions:
What is a primary benefit of using storage pools in vSAN ESA?
What is a primary benefit of using storage pools in vSAN ESA?
The Log-Structured File System (LFS) is compatible only with certain types of devices.
The Log-Structured File System (LFS) is compatible only with certain types of devices.
What happens to small incoming I/O in the Log-Structured File System?
What happens to small incoming I/O in the Log-Structured File System?
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.
What is the default storage policy when Auto-Policy Management is enabled on a cluster?
What is the default storage policy when Auto-Policy Management is enabled on a cluster?
Cross vCenter Cross Cluster Capacity Sharing is supported in VMware Cloud Foundation 5.2.
Cross vCenter Cross Cluster Capacity Sharing is supported in VMware Cloud Foundation 5.2.
What is a primary benefit of using vSAN Max for application and hardware cost optimization?
What is a primary benefit of using vSAN Max for application and hardware cost optimization?
What must be enabled to create additional clusters with vSAN ESA?
What must be enabled to create additional clusters with vSAN ESA?
VSAN Max does not support storing large datasets for Private AI.
VSAN Max does not support storing large datasets for Private AI.
What does vSAN Max provide for hardware asset longevity?
What does vSAN Max provide for hardware asset longevity?
To auto-claim disks in vSAN ESA, the ______ feature must be turned on.
To auto-claim disks in vSAN ESA, the ______ feature must be turned on.
Match the vSAN features with their descriptions:
Match the vSAN features with their descriptions:
Full vSAN requires ____________ per host.
Full vSAN requires ____________ per host.
Match the storage technology with its characteristic:
Match the storage technology with its characteristic:
Which of the following statements is true regarding vSAN ESA clusters?
Which of the following statements is true regarding vSAN ESA clusters?
The vSAN Health Check Plugin can only verify hardware manually.
The vSAN Health Check Plugin can only verify hardware manually.
Which of the following statements best describes the management experience of vSAN Max?
Which of the following statements best describes the management experience of vSAN Max?
What type of boot device is recommended for maximizing space available for ESX-OS Data?
What type of boot device is recommended for maximizing space available for ESX-OS Data?
The new vSAN ESA storage type allows for improved _____ for virtual machines.
The new vSAN ESA storage type allows for improved _____ for virtual machines.
Deduplication and compression in vSAN are applied at the disk group level.
Deduplication and compression in vSAN are applied at the disk group level.
To optimize performance, vSAN requires a minimum of ___________ CPUs per host.
To optimize performance, vSAN requires a minimum of ___________ CPUs per host.
Which operation is not supported in vSAN ESA?
Which operation is not supported in vSAN ESA?
What is an essential consideration for storage controllers in vSAN configurations?
What is an essential consideration for storage controllers in vSAN configurations?
Which of the following features does vSAN ESA NOT support?
Which of the following features does vSAN ESA NOT support?
A single point of failure in a vSAN ESA storage pool can bring down the entire pool.
A single point of failure in a vSAN ESA storage pool can bring down the entire pool.
What is one advantage of the Log-Structured File System (LFS) introduced in vSAN ESA?
What is one advantage of the Log-Structured File System (LFS) introduced in vSAN ESA?
VSAN ESA only supports ______ based flash devices.
VSAN ESA only supports ______ based flash devices.
Match the vSAN ESA features with their corresponding descriptions:
Match the vSAN ESA features with their corresponding descriptions:
Which of the following benefits does vSAN ESA offer regarding data handling?
Which of the following benefits does vSAN ESA offer regarding data handling?
How does vSAN ESA handle I/O flow differently compared to traditional architectures?
How does vSAN ESA handle I/O flow differently compared to traditional architectures?
What is the minimum number of ESXi hosts required for a management domain in a stretched cluster?
What is the minimum number of ESXi hosts required for a management domain in a stretched cluster?
A stretched cluster can tolerate the failure of an entire availability zone.
A stretched cluster can tolerate the failure of an entire availability zone.
What does RTO stand for in the context of availability and maintenance?
What does RTO stand for in the context of availability and maintenance?
In a stretched cluster, each availability zone must contain the same number of __________.
In a stretched cluster, each availability zone must contain the same number of __________.
Match the following stretched cluster use cases with their descriptions:
Match the following stretched cluster use cases with their descriptions:
What role does the witness site play in a stretched cluster?
What role does the witness site play in a stretched cluster?
The management cluster must be stretched before any virtual infrastructure (VI) workload clusters are stretched.
The management cluster must be stretched before any virtual infrastructure (VI) workload clusters are stretched.
What is the purpose of configuring fault domains in a stretched cluster?
What is the purpose of configuring fault domains in a stretched cluster?
A stretched cluster consists of __________ active availability zones and one witness site.
A stretched cluster consists of __________ active availability zones and one witness site.
Which of the following is a reason for using a stretched cluster?
Which of the following is a reason for using a stretched cluster?
What is the maximum round-trip time (RTT) requirement between availability zones and the witness host with 11 or more hosts in an availability zone?
What is the maximum round-trip time (RTT) requirement between availability zones and the witness host with 11 or more hosts in an availability zone?
The vSAN Witness host must be managed by a different vCenter instance than the vSAN cluster.
The vSAN Witness host must be managed by a different vCenter instance than the vSAN cluster.
What must be done before stretching the cluster into the second availability zone?
What must be done before stretching the cluster into the second availability zone?
The NSX Edge Uplink and NSX Edge Overlay Transport VLANs must be stretched (L2) across __________.
The NSX Edge Uplink and NSX Edge Overlay Transport VLANs must be stretched (L2) across __________.
Match the following components with their requirements:
Match the following components with their requirements:
To use the auto-claim disks feature in vSAN ESA, the _____ feature must be turned on.
To use the auto-claim disks feature in vSAN ESA, the _____ feature must be turned on.
Match the following vSAN ESA capabilities with their features:
Match the following vSAN ESA capabilities with their features:
The vSAN ESA default storage policy changes when a new VM is created.
The vSAN ESA default storage policy changes when a new VM is created.
What happens to the default storage policy when enabling Auto-Policy Management on a cluster?
What happens to the default storage policy when enabling Auto-Policy Management on a cluster?
What storage type must customers choose during cluster creation under VMware Cloud Foundation 5.2?
What storage type must customers choose during cluster creation under VMware Cloud Foundation 5.2?
Removing a host from a vSAN ESA cluster guarantees policy compliance.
Removing a host from a vSAN ESA cluster guarantees policy compliance.
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 features with their functions:
Match the following vSAN features with their functions:
What happens when a user tries to change the deployment type of a cluster after its creation?
What happens when a user tries to change the deployment type of a cluster after its creation?
Deduplication and compression in vSAN ESA are policy-based and cluster wide.
Deduplication and compression in vSAN ESA are policy-based and cluster wide.
What is the main limitation of vSAN Max storage in a VMware Cloud Foundation environment?
What is the main limitation of vSAN Max storage in a VMware Cloud Foundation environment?
What is a key feature of vSAN Max under VMware Cloud Foundation 5.2?
What is a key feature of vSAN Max under VMware Cloud Foundation 5.2?
What advantage does vSAN ESA provide in terms of disk usage?
What advantage does vSAN ESA provide in terms of disk usage?
In vSAN ESA, a failure of a cache disk impacts other disks in the storage pool.
In vSAN ESA, a failure of a cache disk impacts other disks in the storage pool.
What is the maximum type of disk supported in vSAN ESA storage pools?
What is the maximum type of disk supported in vSAN ESA storage pools?
The vSAN ESA architecture utilizes a __________ filesystem to manage write processes efficiently.
The vSAN ESA architecture utilizes a __________ filesystem to manage write processes efficiently.
Which operation does vSAN ESA NOT perform during data processing?
Which operation does vSAN ESA NOT perform during data processing?
VSAN ESA storage pools have a two-tier architecture for disk management.
VSAN ESA storage pools have a two-tier architecture for disk management.
What is a benefit of normalizing storage management with vSAN Max?
What is a benefit of normalizing storage management with vSAN Max?
VSAN Max can extend the life of existing hardware assets.
VSAN Max can extend the life of existing hardware assets.
What type of environments is vSAN Max particularly beneficial for?
What type of environments is vSAN Max particularly beneficial for?
To use vSAN for full functionality, a minimum of _______ GB of memory is required per host.
To use vSAN for full functionality, a minimum of _______ GB of memory is required per host.
Match the vSAN features with their respective descriptions:
Match the vSAN features with their respective descriptions:
Which component is NOT required for a vSAN host's boot device?
Which component is NOT required for a vSAN host's boot device?
VSAN Max storage presentation is not limited to within the same network.
VSAN Max storage presentation is not limited to within the same network.
What needs to be added to account for virtual storage in vSAN?
What needs to be added to account for virtual storage in vSAN?
VSAN allows organizations to optimize __________ costs by keeping compute clusters small.
VSAN allows organizations to optimize __________ costs by keeping compute clusters small.
The vSphere vMotion VMkernel ports must always use the default TCP/IP stack instance for routing traffic.
The vSphere vMotion VMkernel ports must always use the default TCP/IP stack instance for routing traffic.
What must be ensured regarding the gateway for vSphere vMotion in the network pool configuration?
What must be ensured regarding the gateway for vSphere vMotion in the network pool configuration?
The vSphere vMotion, vSAN, and host overlay networks must route between availability zones if they are not _____.
The vSphere vMotion, vSAN, and host overlay networks must route between availability zones if they are not _____.
What is the metadata overhead percentage calculated for vSAN?
What is the metadata overhead percentage calculated for vSAN?
Match the following networks with their routing requirements:
Match the following networks with their routing requirements:
VSAN requires a maximum of 255 GB for VM Home Namespace.
VSAN requires a maximum of 255 GB for VM Home Namespace.
What is the minimum number of ESXi hosts required in a default management domain for an availability zone?
What is the minimum number of ESXi hosts required in a default management domain for an availability zone?
The effective capacity is calculated for RAID 5 with FTT=____.
The effective capacity is calculated for RAID 5 with FTT=____.
Match the following vSAN overhead components with their percentages:
Match the following vSAN overhead components with their percentages:
What must happen to the management cluster before stretching a VI workload cluster?
What must happen to the management cluster before stretching a VI workload cluster?
Which storage I/O controller type is preferred to eliminate overhead?
Which storage I/O controller type is preferred to eliminate overhead?
A witness site in a stretched cluster contains a single host that maintains __________ for objects that need them.
A witness site in a stretched cluster contains a single host that maintains __________ for objects that need them.
Entering Maintenance Mode does not count as a failure in vSAN.
Entering Maintenance Mode does not count as a failure in vSAN.
How many hosts are required in a VI workload domain?
How many hosts are required in a VI workload domain?
What is the maximum number of availability zones in a stretched vSAN cluster?
What is the maximum number of availability zones in a stretched vSAN cluster?
VSAN File Services encompass objects that contain ______ and file shares.
VSAN File Services encompass objects that contain ______ and file shares.
Every availability zone in a stretched cluster can have a different number of hosts.
Every availability zone in a stretched cluster can have a different number of hosts.
What is a characteristic of each availability zone in a stretched cluster?
What is a characteristic of each availability zone in a stretched cluster?
What is the impact of using FTT=1 in a production environment?
What is the impact of using FTT=1 in a production environment?
The __________ allows for preventing production outages before impending service issues.
The __________ allows for preventing production outages before impending service issues.
What is the primary role of the witness site?
What is the primary role of the witness site?
What must be configured to route vSphere vMotion networks between availability zones if they are not stretched?
What must be configured to route vSphere vMotion networks between availability zones if they are not stretched?
The round-trip time (RTT) requirement between availability zones is less than or equal to 10 ms.
The round-trip time (RTT) requirement between availability zones is less than or equal to 10 ms.
What is the primary purpose of ensuring that a gateway for vSphere vMotion is reachable?
What is the primary purpose of ensuring that a gateway for vSphere vMotion is reachable?
In a campus area network, the vSphere vMotion, vSAN, and host overlay networks must route between availability zones if they are not __________.
In a campus area network, the vSphere vMotion, vSAN, and host overlay networks must route between availability zones if they are not __________.
Match the following networking requirements with their descriptions:
Match the following networking requirements with their descriptions:
What is the primary purpose of storage policies in vSAN?
What is the primary purpose of storage policies in vSAN?
A Flat.VMDK in a vSAN file is considered an object made up of components.
A Flat.VMDK in a vSAN file is considered an object made up of components.
To ensure redundancy, a Flat.VMDK needs to be placed on ___ ESXi hosts.
To ensure redundancy, a Flat.VMDK needs to be placed on ___ ESXi hosts.
Match Failures to Tolerate methods (FTMs) with their descriptions:
Match Failures to Tolerate methods (FTMs) with their descriptions:
Which of the following goals is NOT achieved through storage policies in vSAN?
Which of the following goals is NOT achieved through storage policies in vSAN?
The default policy in vSAN guarantees one failure to tolerate.
The default policy in vSAN guarantees one failure to tolerate.
Which of the following features distinguishes vSAN ESA from vSAN OSA?
Which of the following features distinguishes vSAN ESA from vSAN OSA?
VSAN ESA can utilize SAS and SATA devices.
VSAN ESA can utilize SAS and SATA devices.
Deduplication is _________ on vSAN ESA.
Deduplication is _________ on vSAN ESA.
Match the following vSAN ESA requirements with their descriptions:
Match the following vSAN ESA requirements with their descriptions:
Which compression scope is applied in vSAN OSA?
Which compression scope is applied in vSAN OSA?
The storage configuration type is the same for both vSAN OSA and vSAN ESA.
The storage configuration type is the same for both vSAN OSA and vSAN ESA.
What is the encryption setup for vSAN ESA?
What is the encryption setup for vSAN ESA?
VSAN ESA requires disks to be at least _______ in size.
VSAN ESA requires disks to be at least _______ in size.
What is a key feature of vSAN ESA storage pools?
What is a key feature of vSAN ESA storage pools?
In vSAN ESA, a single disk failure can bring down the entire storage pool.
In vSAN ESA, a single disk failure can bring down the entire storage pool.
What type of devices does vSAN ESA exclusively support?
What type of devices does vSAN ESA exclusively support?
The vSAN ESA architecture allows for _____ at data ingest to enhance performance.
The vSAN ESA architecture allows for _____ at data ingest to enhance performance.
Match the following vSAN ESA components with their primary functions:
Match the following vSAN ESA components with their primary functions:
Which process is NOT a part of the new I/O engine in vSAN ESA?
Which process is NOT a part of the new I/O engine in vSAN ESA?
The vSAN Log-Structured File System helps in reducing I/O overhead.
The vSAN Log-Structured File System helps in reducing I/O overhead.
What unique advantage do storage pools provide in vSAN ESA?
What unique advantage do storage pools provide in vSAN ESA?
In vSAN ESA, data is prepared for writing to the performance leg after being processed in the _____ buffer.
In vSAN ESA, data is prepared for writing to the performance leg after being processed in the _____ buffer.
What does vSAN ESA do to performance when ingesting data?
What does vSAN ESA do to performance when ingesting data?
What is required for a stretched cluster to function properly?
What is required for a stretched cluster to function properly?
Each availability zone in a stretched cluster can fail without affecting the entire system.
Each availability zone in a stretched cluster can fail without affecting the entire system.
What is the purpose of the witness site in a stretched cluster?
What is the purpose of the witness site in a stretched cluster?
A stretched cluster is configured with two active availability zones and a __________ site.
A stretched cluster is configured with two active availability zones and a __________ site.
When is a stretched cluster particularly beneficial?
When is a stretched cluster particularly beneficial?
The minimum number of hosts for a workload domain in a stretched cluster is four.
The minimum number of hosts for a workload domain in a stretched cluster is four.
What do redundancy components do in a fault domain?
What do redundancy components do in a fault domain?
In stretched clusters, a low __________ time objective (RTO) is desirable for unplanned failures.
In stretched clusters, a low __________ time objective (RTO) is desirable for unplanned failures.
Which of the following is NOT a use case for a stretched cluster?
Which of the following is NOT a use case for a stretched cluster?
Flashcards
vSAN OSA Disk Support
vSAN OSA Disk Support
vSAN OSA supports both hybrid and all-flash disk configurations.
vSAN ESA Disk Support
vSAN ESA Disk Support
vSAN ESA only supports all-flash disk configurations and does not support SAS or SATA devices.
vSAN OSA Disk Structure
vSAN OSA Disk Structure
vSAN OSA uses a two-tier disk structure, called disk groups.
vSAN ESA Disk Structure
vSAN ESA Disk Structure
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vSAN ESA vSphere Compatibility
vSAN ESA vSphere Compatibility
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vSAN ESA Minimum NVMe SSDs
vSAN ESA Minimum NVMe SSDs
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vSAN ESA Deployment Restriction
vSAN ESA Deployment Restriction
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vSAN ESA Storage Policy
vSAN ESA Storage Policy
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vSAN ESA Default Policy Raid 5
vSAN ESA Default Policy Raid 5
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vSAN ESA Default Policy Raid 6
vSAN ESA Default Policy Raid 6
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Compression in vSAN ESA
Compression in vSAN ESA
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Granular storage policies (per VMDK)
Granular storage policies (per VMDK)
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vSAN ESA Auto-Policy Management
vSAN ESA Auto-Policy Management
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Disk stripes per object
Disk stripes per object
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Flash-read cache reservation
Flash-read cache reservation
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Storage tier
Storage tier
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vSAN ESA
vSAN ESA
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vSphere Lifecycle Manager
vSphere Lifecycle Manager
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Cross Cluster Capacity Sharing (VCF 5.2)
Cross Cluster Capacity Sharing (VCF 5.2)
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Auto-Policy Management
Auto-Policy Management
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HCL
HCL
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vSAN Health Check Plugin
vSAN Health Check Plugin
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Proxy Configuration for HCL
Proxy Configuration for HCL
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vSAN Datastore Storage Type
vSAN Datastore Storage Type
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Bring-up Parameter Sheet
Bring-up Parameter Sheet
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HCL JSON File Path
HCL JSON File Path
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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 Storage
vSAN Max Storage
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VMware Cloud Foundation Storage Options
VMware Cloud Foundation Storage Options
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vSAN Max Capacity
vSAN Max Capacity
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vSAN Max Licensing
vSAN Max Licensing
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vSAN Max Stretched Cluster
vSAN Max Stretched Cluster
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vSAN Max Deployment Time
vSAN Max Deployment Time
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vSAN Max Presentation Limitation
vSAN Max Presentation Limitation
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vSAN Max Other Limitations
vSAN Max Other Limitations
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vSAN Max Use Cases
vSAN Max Use Cases
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vSAN OSA Build Options
vSAN OSA Build Options
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vSAN CPU Overhead
vSAN CPU Overhead
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vSAN Disk Type Performance
vSAN Disk Type Performance
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vSAN
vSAN
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Storage Policies in vSAN
Storage Policies in vSAN
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Object-Based Storage
Object-Based Storage
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Components vs. Objects
Components vs. Objects
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Failures to Tolerate (FTT)
Failures to Tolerate (FTT)
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Failures to Tolerate Methods (FTMs)
Failures to Tolerate Methods (FTMs)
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Minimum Esxi Hosts for vSAN
Minimum Esxi Hosts for vSAN
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Deduplication & Compression in vSAN
Deduplication & Compression in vSAN
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vSAN ESA Characteristics
vSAN ESA Characteristics
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vSAN ESA Deployment
vSAN ESA Deployment
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vSAN ESA Management
vSAN ESA Management
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vSAN ESA vs. vSAN OSA
vSAN ESA vs. vSAN OSA
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Existing vSAN Cluster Configuration (OSA)
Existing vSAN Cluster Configuration (OSA)
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Deduplication & Compression During Bring-Up
Deduplication & Compression During Bring-Up
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vSAN OSA vs. ESA Disk Structure
vSAN OSA vs. ESA Disk Structure
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vSAN ESA Minimum Requirements
vSAN ESA Minimum Requirements
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vSAN ESA Compression
vSAN ESA Compression
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vSAN ESA and Auto-Policy Management
vSAN ESA and Auto-Policy Management
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vSAN ESA Default Storage Policy
vSAN ESA Default Storage Policy
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vSAN ESA Host Removal Impact
vSAN ESA Host Removal Impact
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What is vSAN ESA?
What is vSAN ESA?
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What are the key features of vSAN ESA?
What are the key features of vSAN ESA?
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What is the benefit of vSAN ESA's new I/O Engine?
What is the benefit of vSAN ESA's new I/O Engine?
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What is the purpose of vSAN Log-Structured File System (LFS)?
What is the purpose of vSAN Log-Structured File System (LFS)?
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How does vSAN ESA improve disk utilization?
How does vSAN ESA improve disk utilization?
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What makes vSAN ESA more resilient than the previous architecture?
What makes vSAN ESA more resilient than the previous architecture?
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How does vSAN ESA's I/O flow differ from the older architecture?
How does vSAN ESA's I/O flow differ from the older architecture?
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What are the benefits of using a single-tier architecture in vSAN ESA?
What are the benefits of using a single-tier architecture in vSAN ESA?
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How does vSAN ESA reduce I/O amplifications?
How does vSAN ESA reduce I/O amplifications?
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What is the advantage of vSAN ESA's support for only NVMe-based flash devices?
What is the advantage of vSAN ESA's support for only NVMe-based flash devices?
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vSAN ESA Storage Pools
vSAN ESA Storage Pools
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vSAN ESA I/O Engine
vSAN ESA I/O Engine
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vSAN ESA Log-Structured File System (LFS)
vSAN ESA Log-Structured File System (LFS)
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vSAN ESA Impact on Disk Utilization
vSAN ESA Impact on Disk Utilization
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vSAN ESA Resilience
vSAN ESA Resilience
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vSAN ESA I/O Flow
vSAN ESA I/O Flow
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vSAN ESA Benefits of Single-Tier Architecture
vSAN ESA Benefits of Single-Tier Architecture
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vSAN ESA and I/O Amplification
vSAN ESA and I/O Amplification
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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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Management Domain Protection
Management Domain Protection
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Network Requirements for Availability Zones
Network Requirements for Availability Zones
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Gateway Configuration for Stretched Networks
Gateway Configuration for Stretched Networks
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Gateway for vSphere vMotion
Gateway for vSphere vMotion
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Networking in Availability Zones
Networking in Availability Zones
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vSAN ESA Cluster Creation
vSAN ESA Cluster Creation
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Auto-Policy Management in vSAN ESA
Auto-Policy Management in vSAN ESA
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What's the difference between vSAN ESA and vSAN OSA?
What's the difference between vSAN ESA and vSAN OSA?
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What is a vSAN ReadyNode?
What is a vSAN ReadyNode?
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What does a vSAN ESA single-tier structure mean?
What does a vSAN ESA single-tier structure mean?
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How does vSAN ESA improve performance?
How does vSAN ESA improve performance?
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What are the benefits of using vSAN ESA?
What are the benefits of using vSAN ESA?
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What are some limitations of vSAN ESA?
What are some limitations of vSAN ESA?
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vSAN ESA Key Features
vSAN ESA Key Features
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vSAN ESA Disk Utilization
vSAN ESA Disk Utilization
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What makes vSAN ESA more resilient than the older architecture?
What makes vSAN ESA more resilient than the older architecture?
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vSAN ReadyNode
vSAN ReadyNode
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Single-Tier Architecture
Single-Tier Architecture
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vSAN ESA Benefits
vSAN ESA Benefits
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vSAN ESA Performance Improvements
vSAN ESA Performance Improvements
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vSAN ESA Limitations
vSAN ESA Limitations
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vSAN Stretched Cluster
vSAN Stretched Cluster
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Witness Host
Witness Host
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Commissioning Hosts in AZ 2
Commissioning Hosts in AZ 2
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vSAN Network Requirements
vSAN Network Requirements
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vSAN Management Network
vSAN Management Network
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Stretched Cluster
Stretched Cluster
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Availability Zone
Availability Zone
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Witness Site
Witness Site
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Fault Domain
Fault Domain
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Planned Maintenance
Planned Maintenance
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Low Recovery Time Objective (RTO)
Low Recovery Time Objective (RTO)
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Management Domain
Management Domain
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Workload Domain
Workload Domain
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Stretched Cluster Prerequisites
Stretched Cluster Prerequisites
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What are some of the key differences between vSAN ESA and vSAN OSA?
What are some of the key differences between vSAN ESA and vSAN OSA?
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How does vSAN ESA's Log-Structured File System (LFS) impact performance?
How does vSAN ESA's Log-Structured File System (LFS) impact performance?
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Explain how vSAN ESA's new I/O engine optimizes data handling.
Explain how vSAN ESA's new I/O engine optimizes data handling.
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vSAN ESA (Enhanced Storage Architecture)
vSAN ESA (Enhanced Storage Architecture)
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vSAN Metadata Overhead
vSAN Metadata Overhead
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vSAN Slack Space
vSAN Slack Space
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vSAN Effective Capacity
vSAN Effective Capacity
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vSAN Storage Policy Based Management (SPBM)
vSAN Storage Policy Based Management (SPBM)
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vSAN ESA Single-Tier Architecture
vSAN ESA Single-Tier Architecture
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Minimum Hosts in a VI Workload Domain
Minimum Hosts in a VI Workload Domain
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Management Domain Stretched Cluster
Management Domain Stretched Cluster
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Planned Maintenance Use Case
Planned Maintenance Use Case
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VM Restart or Recovery
VM Restart or Recovery
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vSAN Enterprise License
vSAN Enterprise License
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vCenter Instances in Management Domain
vCenter Instances in Management Domain
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What is vSAN?
What is vSAN?
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What are Storage Policies in vSAN?
What are Storage Policies in vSAN?
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What is Object-Based Storage?
What is Object-Based Storage?
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What are Components vs. Objects?
What are Components vs. Objects?
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What is Failures to Tolerate (FTT)?
What is Failures to Tolerate (FTT)?
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What are Failures to Tolerate Methods (FTMs)?
What are Failures to Tolerate Methods (FTMs)?
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What is the Minimum Number of ESXi Hosts for vSAN?
What is the Minimum Number of ESXi Hosts for vSAN?
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vSAN ESA Storage Configuration
vSAN ESA Storage Configuration
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Stretched Cluster Use Case
Stretched Cluster Use Case
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Minimum Hosts
Minimum Hosts
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Management Cluster
Management Cluster
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vCenter Instance
vCenter Instance
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vSAN Log-Structured File System (LFS)
vSAN Log-Structured File System (LFS)
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Study Notes
VSAN Policy Driven Storage System
- With SPBM (Storage-based policy management), VCF assets use storage that guarantees a specified level of capacity, performance, availability, and redundancy.
- Storage policies categorize storage for service levels, optimize VM disk configurations, and protect data through object-based fault tolerance.
- SPBMs are sets of rules.
Traditional VM Storage
- VMDK files point to flat.vmdk files on storage arrays. Administrators must configure LUNs based on criteria to access them.
- Physical disk details (how they're built, disk count, mirroring) are often unknown to users.
- Storage admin interaction is necessary to define LUNs for optimal storage array configuration. This involves knowledge of capacity, performance, and redundancy requirements to ensure appropriate VMs and applications can run.
Policy Driven Object-Based Storage
- VSAN policies strategically place data objects across datastores to protect components like NSX, SDDC Manager, workload VMs, and vSAN data.
- Storage policies apply to VM home namespaces, VMDK objects, thin-provisioned VM swap objects, VM snapshots, VM memory objects, and vSAN performance and file system data objects.
- Objects like Flat.VMDK consist of components requiring redundancy and placement on multiple ESXi hosts (e.g., RAID-1 for mirroring).
Failures to Tolerate (FTT)
- By default, VMware Cloud Foundation protects against one failure.
- Changing the default storage policy involves modifying the FTT value, ranging from 0 to 2.
- Higher FTT values (e.g., 3) necessitate additional ESXi hosts.
- SDDC Manager automatically configures RAID 1 (mirroring) for modifications.
- Policy changes across many objects can take time, so it's often recommended to apply changes in stages.
Comparing RAID 1 Mirroring and RAID 5/6 Erasure Coding
- Erasure coding offers significant capacity savings but adds overhead in IOPS and network bandwidth compared to mirroring.
- Different FTT values affect minimum host requirements and total capacity.
vSAN Storage Policy Space Consumption Comparison
- RAID-0, RAID-1, and RAID-5 demonstrate different storage consumption based on hosts and FTT.
- Choosing the appropriate RAID level influences space requirements, flexibility, and potential for capacity savings.
vSAN Storage Policy Space Consumption Comparison
- Comparison to different configurations for use with 100GB Virtual Disks.
- Data capacity required depends on the chosen policy, number of hosts and the desired failure tolerance values.
vSAN Storage Policy Features
- For ESA (Express Storage architecture) compression is on by default, disk stripe count per object, flash read cache reservation and granular storage policies are not relevant.
- RAID 5 storage policies have a failure tolerance of 1
- Storage policies are applied to objects like VMDKs.
VSAN (ESA) Express Storage Architecture
- Offers use of current and future hardware.
- Suitable choice for high-performing data centers.
- Enables the use of NVMe drives for maximum storage efficiency.
- Supports all-flash configurations and has different requirements than older vSAN architectures.
- Only high-performance NVMe TLC SSD devices are supported.
- No in-place upgrades are supported.
vSAN ESA Disk Configuration
- Unlike OSA, ESA vSAN uses storage pools instead of disk groups.
- This removes the cache tier and improves resiliency by distributing components across the cluster.
vSAN ESA New I/O Engine
- The ESA I/O engine uses highly parallel and efficient processing.
- Compresses data for reduced network and CPU resources.
- Encrypts data for reduced CPU usage.
- Reuses already calculated CRC checksums for improved efficiency.
VSAN Log Structured File System (LFS)
- The LFS improves performance for write activity and snapshots by streamlining the I/O process.
- It performs full-stripe writes in parallel.
- The LFS also simplifies cluster operation by optimizing storage operations, thereby reducing CPU overhead and boosting performance.
Monitoring Compliance
- Information can be found on the VMs and storage policy tabs.
Comparing Configurations
- vSAN ESA provides better performance and efficiency compared to vSAN OSA for most use cases.
- Differences in disk support, storage configuration, disk maximums, and compression mechanisms are noted.
vSAN Max Support
- Offers deployment of vSAN Max as principal storage in Cloud Foundation 5.2 and VSAN 8 U3.
- Allows customers to use vSAN Max with aggregated VSAN HCI clusters or disaggregated vSAN Max clusters.
- Enables flexibility with shared storage and deployment options.
vSAN Max Limitations
- Stretched cluster deployments are not supported for disaggregated vSAN Max setups within a stretched cluster topology.
- Host counts, and connection limitations apply.
- Configuration of vSAN Max storage is limited within the same vCenter system.
- Presentation of vSAN storage is usually limited within the same vCenter system.
vSAN Design Considerations, Performance and Sizing, and Overhead
- Design considerations include CPU overhead, memory requirements, disk groups, and storage policies.
- Choosing the correct hardware, and settings can prevent performance degradation.
vSAN Host Hardware
- Recommendation for highest queue depth I/O controllers for optimal performance.
- RAID-0 is not recommended for VSAN disks.
vSAN stretched Clusters and Witness Host
- Requires a third witness site for redundancy.
- Witness site must have low latency round-trip time to all availability zones(less than 200ms preferred).
- For 11 or more hosts, the RTT needs to be less than 100ms.
- The witness must be in a different availability zone.
vSAN API Operations
A detailed overview of the required APIs to manage vSAN stretch, along with example commands and JSON file structures to implement and validate the process.
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Description
Test your knowledge of vSAN Max, ESA, and OSA in this quiz. Explore key features, design considerations, and the benefits of using deduplication and compression. Perfect for those looking to deepen their understanding of virtual storage solutions.
