Podcast
Questions and Answers
What is the recommended percentage of slack space to consider when sizing for a production environment?
What is the recommended percentage of slack space to consider when sizing for a production environment?
- 35 percent
- 25 percent
- 30 percent (correct)
- 15 percent
Which factor is NOT included in calculating the vSAN metadata overhead?
Which factor is NOT included in calculating the vSAN metadata overhead?
- On-disk format version
- Space for checksum
- Standard overhead percentage
- Space reserved for deduplication (correct)
What overhead does the vSAN design and sizing guide state for formatting if deduplication is not used?
What overhead does the vSAN design and sizing guide state for formatting if deduplication is not used?
- 5 percent
- 1 percent (correct)
- 10 percent
- 15 percent
Which storage policy is associated with the highest failure tolerance under certain conditions?
Which storage policy is associated with the highest failure tolerance under certain conditions?
In stretched vSAN clusters, which characteristic is essential for the high-bandwidth connections between availability zones?
In stretched vSAN clusters, which characteristic is essential for the high-bandwidth connections between availability zones?
What is a key feature of vSAN ESA that differentiates it from traditional vSAN OSA?
What is a key feature of vSAN ESA that differentiates it from traditional vSAN OSA?
Which function does the vSAN ESA Log-Structured File System (LFS) perform during the I/O process?
Which function does the vSAN ESA Log-Structured File System (LFS) perform during the I/O process?
What is NOT a benefit of using vSAN ESA's storage pools?
What is NOT a benefit of using vSAN ESA's storage pools?
In the context of vSAN ESA, how does data compression during ingestion benefit the system?
In the context of vSAN ESA, how does data compression during ingestion benefit the system?
Which characteristic defines the maximum number of disks in a vSAN ESA storage pool?
Which characteristic defines the maximum number of disks in a vSAN ESA storage pool?
What role does encryption play in the vSAN ESA I/O process?
What role does encryption play in the vSAN ESA I/O process?
How does the vSAN ESA achieve high-performance snapshots?
How does the vSAN ESA achieve high-performance snapshots?
Which aspect of vSAN ESA storage pools enhances the efficiency of data management?
Which aspect of vSAN ESA storage pools enhances the efficiency of data management?
What is the primary function of storage policies in vSAN?
What is the primary function of storage policies in vSAN?
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?
Which of the following components is considered an object in vSAN?
Which of the following components is considered an object in vSAN?
What is the minimum number of ESXi hosts required for a FTT of 1 using Raid-5?
What is the minimum number of ESXi hosts required for a FTT of 1 using Raid-5?
How does RAID-1 policy apply to VMs in vSAN?
How does RAID-1 policy apply to VMs in vSAN?
How does deduplication function in data storage?
How does deduplication function in data storage?
What is a key advantage of policy-driven object-based storage?
What is a key advantage of policy-driven object-based storage?
Which storage policy requires an all-flash architecture?
Which storage policy requires an all-flash architecture?
What is the purpose of using compression in data storage?
What is the purpose of using compression in data storage?
What does SPBM stand for in the context of vSAN?
What does SPBM stand for in the context of vSAN?
Which statement about object-based fault tolerance in vSAN is true?
Which statement about object-based fault tolerance in vSAN is true?
For a FTT of 2, how many ESXi hosts are required for Raid-6?
For a FTT of 2, how many ESXi hosts are required for Raid-6?
What is a potential consequence of not having enough ESXi hosts configured in vSAN?
What is a potential consequence of not having enough ESXi hosts configured in vSAN?
Which raid configuration offers the highest fault tolerance?
Which raid configuration offers the highest fault tolerance?
What is the storage equivalence for Raid-1 with a FTT of 2?
What is the storage equivalence for Raid-1 with a FTT of 2?
How are object policies defined in vSAN?
How are object policies defined in vSAN?
What is the default configuration for Failures to Tolerate in vSAN?
What is the default configuration for Failures to Tolerate in vSAN?
Which of the following is not a tab in the storage policy interface?
Which of the following is not a tab in the storage policy interface?
What happens first during the process of deduplication and compression?
What happens first during the process of deduplication and compression?
How many hosts are required at a minimum for Raid-1 with a FTT of 0?
How many hosts are required at a minimum for Raid-1 with a FTT of 0?
What is the primary benefit of using deduplication at the disk group level with a 4K block size?
What is the primary benefit of using deduplication at the disk group level with a 4K block size?
When does vSAN store data in a compressed format?
When does vSAN store data in a compressed format?
Which of the following steps is NOT part of the existing cluster deduplication and compression guideline?
Which of the following steps is NOT part of the existing cluster deduplication and compression guideline?
What is a key characteristic of vSAN ESA?
What is a key characteristic of vSAN ESA?
Which type of hardware is NOT supported by vSAN ESA?
Which type of hardware is NOT supported by vSAN ESA?
What does vSAN ESA build on?
What does vSAN ESA build on?
Which of the following statements about vSAN ESA is true?
Which of the following statements about vSAN ESA is true?
What overhead does vSAN consider when storing compressed data?
What overhead does vSAN consider when storing compressed data?
Which of the following is a feature of vSAN ESA?
Which of the following is a feature of vSAN ESA?
What is the relationship between deduplication and compression in vSAN?
What is the relationship between deduplication and compression in vSAN?
What is the minimum number of ESXi hosts required for a Failures to Tolerate (FTT) of 1 using Raid-1?
What is the minimum number of ESXi hosts required for a Failures to Tolerate (FTT) of 1 using Raid-1?
What does deduplication do in a vSAN environment?
What does deduplication do in a vSAN environment?
Which RAID configuration requires a minimum of 6 hosts?
Which RAID configuration requires a minimum of 6 hosts?
How many storage components are necessary for a Raid-5 configuration with FTT of 1?
How many storage components are necessary for a Raid-5 configuration with FTT of 1?
What is the main benefit of enabling both deduplication and compression in a vSAN architecture?
What is the main benefit of enabling both deduplication and compression in a vSAN architecture?
Which aspect of deduplication is NOT applicable when there are redundant blocks across multiple disk groups?
Which aspect of deduplication is NOT applicable when there are redundant blocks across multiple disk groups?
In a vSAN environment, which storage policy requires the use of an all-flash architecture?
In a vSAN environment, which storage policy requires the use of an all-flash architecture?
What is a primary advantage of using vSAN Max in cloud native environments?
What is a primary advantage of using vSAN Max in cloud native environments?
Which factor is essential when considering CPU requirements for vSAN?
Which factor is essential when considering CPU requirements for vSAN?
What is a key benefit of using vSAN Max for storage management?
What is a key benefit of using vSAN Max for storage management?
What is the minimum memory requirement per host for full vSAN implementation?
What is the minimum memory requirement per host for full vSAN implementation?
Which storage architecture is considered to provide better performance in vSAN environments?
Which storage architecture is considered to provide better performance in vSAN environments?
What must be considered before removing a host from a vSAN ESA cluster?
What must be considered before removing a host from a vSAN ESA cluster?
Which of the following is NOT a limitation of using vSAN Max within VMware Cloud Foundation?
Which of the following is NOT a limitation of using vSAN Max within VMware Cloud Foundation?
How many terabytes are supported per vSAN Max host?
How many terabytes are supported per vSAN Max host?
What is the primary storage option for VMware Cloud Foundation 5.2?
What is the primary storage option for VMware Cloud Foundation 5.2?
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?
What happens when a host is removed from a vSAN ESA cluster?
What happens when a host is removed from a vSAN ESA cluster?
Which component is unique to the disk structure of vSAN ESA?
Which component is unique to the disk structure of vSAN ESA?
How does the encryption method differ between vSAN OSA and vSAN ESA?
How does the encryption method differ between vSAN OSA and vSAN ESA?
Which statement is true regarding storage clusters in VMware Cloud Foundation?
Which statement is true regarding storage clusters in VMware Cloud Foundation?
Which statement is true regarding compression settings in vSAN ESA?
Which statement is true regarding compression settings in vSAN ESA?
In the context of using vSAN ESA, which statement is accurate about policy compliance?
In the context of using vSAN ESA, which statement is accurate about policy compliance?
What is a feature of vSAN Max in VMware Cloud Foundation?
What is a feature of vSAN Max in VMware Cloud Foundation?
What is a requirement for deploying vSAN ESA related to the number of NICs?
What is a requirement for deploying vSAN ESA related to the number of NICs?
Which of the following statements about disk types in vSAN ESA is correct?
Which of the following statements about disk types in vSAN ESA is correct?
What does VMware Cloud Foundation licensing entitle customers to regarding vSAN?
What does VMware Cloud Foundation licensing entitle customers to regarding vSAN?
What is a characteristic of compression in vSAN ESA?
What is a characteristic of compression in vSAN ESA?
Which storage configuration is NOT supported by vSAN ESA?
Which storage configuration is NOT supported by vSAN ESA?
What differentiates the compression efficiency of vSAN ESA from that of vSAN OSA?
What differentiates the compression efficiency of vSAN ESA from that of vSAN OSA?
What is the default setting for compression in vSAN ESA storage policies?
What is the default setting for compression in vSAN ESA storage policies?
Which of the following characteristics does NOT apply to vSAN ESA storage policies?
Which of the following characteristics does NOT apply to vSAN ESA storage policies?
What is meant by FTT in the context of vSAN ESA storage policies?
What is meant by FTT in the context of vSAN ESA storage policies?
Which statement about vSAN ESA Auto Policy Management is inaccurate?
Which statement about vSAN ESA Auto Policy Management is inaccurate?
How does vSAN ESA define storage policies?
How does vSAN ESA define storage policies?
Which components does vSAN ESA concatenate with RAID-5?
Which components does vSAN ESA concatenate with RAID-5?
What happens when a new VM is created on a vSAN ESA datastore?
What happens when a new VM is created on a vSAN ESA datastore?
Which statement about the characteristics of the vSAN ESA default policy RAID 6 is correct?
Which statement about the characteristics of the vSAN ESA default policy RAID 6 is correct?
What is the role of space efficiency concerning the compression feature in vSAN ESA?
What is the role of space efficiency concerning the compression feature in vSAN ESA?
In the context of vSAN ESA, which statement regarding the relevance of certain characteristics is true?
In the context of vSAN ESA, which statement regarding the relevance of certain characteristics is true?
What percentage of overhead is allocated for vSAN metadata?
What percentage of overhead is allocated for vSAN metadata?
What is the primary role of storage policies in a policy-driven storage system?
What is the primary role of storage policies in a policy-driven storage system?
Which of the following statements best describes the structure of objects in vSAN?
Which of the following statements best describes the structure of objects in vSAN?
When sizing for a production environment, what is the recommended percentage for slack space?
When sizing for a production environment, what is the recommended percentage for slack space?
What is the effective capacity calculation method for RAID 5 with FTT=1?
What is the effective capacity calculation method for RAID 5 with FTT=1?
What is a necessary requirement for implementing a Failures to Tolerate (FTT) policy in vSAN?
What is a necessary requirement for implementing a Failures to Tolerate (FTT) policy in vSAN?
Which overhead does the vSAN design and sizing guide include if deduplication is utilized?
Which overhead does the vSAN design and sizing guide include if deduplication is utilized?
What is a crucial requirement for stretched vSAN clusters regarding site locations?
What is a crucial requirement for stretched vSAN clusters regarding site locations?
What is the potential consequence of entering Maintenance Mode in a vSAN setup?
What is the potential consequence of entering Maintenance Mode in a vSAN setup?
Which RAID policy in vSAN provides mirrored copies of object data?
Which RAID policy in vSAN provides mirrored copies of object data?
What should vSphere administrators now consider integrating into their roles?
What should vSphere administrators now consider integrating into their roles?
What is the default Failures to Tolerate setting in a vSAN configuration?
What is the default Failures to Tolerate setting in a vSAN configuration?
What is recommended to improve the overall performance of storage I/O controllers per host?
What is recommended to improve the overall performance of storage I/O controllers per host?
What characteristic should the selected storage I/O controller possess for optimal performance?
What characteristic should the selected storage I/O controller possess for optimal performance?
Which type of services does vSAN File Services include?
Which type of services does vSAN File Services include?
What distinct benefit does vSAN ESA provide over vSAN OSA regarding the impact of a single disk failure?
What distinct benefit does vSAN ESA provide over vSAN OSA regarding the impact of a single disk failure?
Which is a feature of the Log-Structured File System (LFS) introduced in vSAN ESA?
Which is a feature of the Log-Structured File System (LFS) introduced in vSAN ESA?
What is the primary reason for having a witness site in a stretched cluster?
What is the primary reason for having a witness site in a stretched cluster?
What is one of the primary roles of storage pools in vSAN ESA?
What is one of the primary roles of storage pools in vSAN ESA?
Which configuration is required for each availability zone in a stretched cluster?
Which configuration is required for each availability zone in a stretched cluster?
How does vSAN ESA manage data compression to enhance performance?
How does vSAN ESA manage data compression to enhance performance?
What is a significant use case for stretched clusters during planned maintenance?
What is a significant use case for stretched clusters during planned maintenance?
Which characteristic of vSAN ESA storage pools directly contributes to reduced I/O flow?
Which characteristic of vSAN ESA storage pools directly contributes to reduced I/O flow?
How does vSAN ESA handle encryption during the data ingestion process?
How does vSAN ESA handle encryption during the data ingestion process?
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?
In a stretched cluster, what does spreading redundancy components across availability zones ensure?
In a stretched cluster, what does spreading redundancy components across availability zones ensure?
What functionality does the vSAN Log-Structured File System (LFS) provide that enhances storage efficiency?
What functionality does the vSAN Log-Structured File System (LFS) provide that enhances storage efficiency?
What is the main advantage of having a single-tier architecture in vSAN ESA storage pools?
What is the main advantage of having a single-tier architecture in vSAN ESA storage pools?
What is a potential consequence of using traditional disk caching techniques as opposed to vSAN ESA's approach?
What is a potential consequence of using traditional disk caching techniques as opposed to vSAN ESA's approach?
What is a primary benefit of introducing vSAN Max into a workload domain?
What is a primary benefit of introducing vSAN Max into a workload domain?
Which of the following is NOT a use case for vSAN Max?
Which of the following is NOT a use case for vSAN Max?
Which factor is essential in determining the memory requirements for full vSAN implementation per host?
Which factor is essential in determining the memory requirements for full vSAN implementation per host?
What is the recommended boot device for vSAN?
What is the recommended boot device for vSAN?
Which storage device configuration is likely to provide better performance?
Which storage device configuration is likely to provide better performance?
To normalize storage management, what does vSAN Max align its management experience with?
To normalize storage management, what does vSAN Max align its management experience with?
What is a key factor to consider for CPU allocation in vSAN?
What is a key factor to consider for CPU allocation in vSAN?
Which element is essential for ensuring redundancy in disk controllers used in vSAN?
Which element is essential for ensuring redundancy in disk controllers used in vSAN?
What is the minimum memory requirement per host for deduplication and compression in a vSAN environment?
What is the minimum memory requirement per host for deduplication and compression in a vSAN environment?
What type of environments does vSAN Max typically support for optimal scaling?
What type of environments does vSAN Max typically support for optimal scaling?
Which of the following statements best describes the role of storage policies in vSAN?
Which of the following statements best describes the role of storage policies in vSAN?
What is the default policy for Failures to Tolerate (FTT) in vSAN?
What is the default policy for Failures to Tolerate (FTT) in vSAN?
Which of the following best describes the composition of an object in vSAN?
Which of the following best describes the composition of an object in vSAN?
What is one of the primary advantages of policy-driven object-based storage in vSAN?
What is one of the primary advantages of policy-driven object-based storage in vSAN?
Which failure tolerance method relies on redundancy across ESXi hosts in vSAN?
Which failure tolerance method relies on redundancy across ESXi hosts in vSAN?
What is the minimum number of ESXi hosts needed for a FTT of 1 using Raid-1?
What is the minimum number of ESXi hosts needed for a FTT of 1 using Raid-1?
Which of the following RAID configurations has the highest failure tolerance?
Which of the following RAID configurations has the highest failure tolerance?
What is the result of applying deduplication before compression in vSAN?
What is the result of applying deduplication before compression in vSAN?
For a storage configuration using Raid-5 and FTT of 1, what is the minimum required storage capacity across ESXi hosts?
For a storage configuration using Raid-5 and FTT of 1, what is the minimum required storage capacity across ESXi hosts?
What is the primary nature of deduplication and compression in vSAN ESA?
What is the primary nature of deduplication and compression in vSAN ESA?
Which of the following statements regarding deduplication in vSAN is true?
Which of the following statements regarding deduplication in vSAN is true?
What effect does removing a host from a vSAN ESA cluster have on the storage policy?
What effect does removing a host from a vSAN ESA cluster have on the storage policy?
What happens during data ingestion in vSAN when both deduplication and compression are enabled?
What happens during data ingestion in vSAN when both deduplication and compression are enabled?
What is the minimum number of ESXi hosts required for FTT of 2 when using Raid-5?
What is the minimum number of ESXi hosts required for FTT of 2 when using Raid-5?
Which storage configuration option is not supported when using a disaggregated vSAN Max deployment?
Which storage configuration option is not supported when using a disaggregated vSAN Max deployment?
Which RAID configuration is associated with a minimum requirement of 3 hosts and can tolerate 1 failure?
Which RAID configuration is associated with a minimum requirement of 3 hosts and can tolerate 1 failure?
What is required to change the storage type in a VMware Cloud Foundation cluster?
What is required to change the storage type in a VMware Cloud Foundation cluster?
In the context of vSAN, what does enabling deduplication and compression require?
In the context of vSAN, what does enabling deduplication and compression require?
For vSAN Max, what is the range of storage capacity available per host?
For vSAN Max, what is the range of storage capacity available per host?
What does the vSAN Health UI do in response to policy noncompliance?
What does the vSAN Health UI do in response to policy noncompliance?
Which is true regarding the limitation of presentation for vSAN Max storage?
Which is true regarding the limitation of presentation for vSAN Max storage?
What defines the flexibility in deploying clusters using VMware Cloud Foundation 5.2?
What defines the flexibility in deploying clusters using VMware Cloud Foundation 5.2?
What happens if a host is decommissioned using SDDC Manager in a vSAN ESA cluster?
What happens if a host is decommissioned using SDDC Manager in a vSAN ESA cluster?
What is a characteristic that distinguishes vSAN Max from traditional storage?
What is a characteristic that distinguishes vSAN Max from traditional storage?
What is the primary consideration in sizing vSAN for a production environment?
What is the primary consideration in sizing vSAN for a production environment?
Which RAID configuration is specifically stated for effective capacity calculations in vSAN?
Which RAID configuration is specifically stated for effective capacity calculations in vSAN?
What percentage of available capacity is typically left after accounting for all overhead in vSAN?
What percentage of available capacity is typically left after accounting for all overhead in vSAN?
What is a requirement for the storage I/O controller when designing for vSAN?
What is a requirement for the storage I/O controller when designing for vSAN?
What is the impact of entering Maintenance Mode in vSAN?
What is the impact of entering Maintenance Mode in vSAN?
Which characteristic is essential for stretched vSAN clusters to ensure high availability?
Which characteristic is essential for stretched vSAN clusters to ensure high availability?
In the context of vSAN sizing, how is the metadata overhead typically expressed?
In the context of vSAN sizing, how is the metadata overhead typically expressed?
What happens during the use of RAID-1 in vSAN?
What happens during the use of RAID-1 in vSAN?
What is the recommended approach regarding storage controllers in vSAN implementation?
What is the recommended approach regarding storage controllers in vSAN implementation?
Which of these statements accurately reflects a consideration when sizing vSAN?
Which of these statements accurately reflects a consideration when sizing vSAN?
What is the minimum number of ESXi hosts required in an availability zone in a stretched cluster management domain?
What is the minimum number of ESXi hosts required in an availability zone in a stretched cluster management domain?
In the context of a stretched cluster, which function does the witness site serve?
In the context of a stretched cluster, which function does the witness site serve?
Which statement accurately describes an aspect of fault domains in a stretched cluster?
Which statement accurately describes an aspect of fault domains in a stretched cluster?
Which scenario is appropriate for using a stretched cluster?
Which scenario is appropriate for using a stretched cluster?
What is the impact of stretching the management cluster before any VI workload clusters?
What is the impact of stretching the management cluster before any VI workload clusters?
What is the primary disk configuration structure used by vSAN ESA?
What is the primary disk configuration structure used by vSAN ESA?
Which configuration supports the maximum number of disks in vSAN OSA?
Which configuration supports the maximum number of disks in vSAN OSA?
Which statement best describes the encryption differences between vSAN OSA and vSAN ESA?
Which statement best describes the encryption differences between vSAN OSA and vSAN ESA?
What is a key limitation for disk support in vSAN ESA?
What is a key limitation for disk support in vSAN ESA?
What are the minimum CPU and RAM requirements for deploying vSAN ESA?
What are the minimum CPU and RAM requirements for deploying vSAN ESA?
How does compression configuration differ between vSAN OSA and vSAN ESA?
How does compression configuration differ between vSAN OSA and vSAN ESA?
Which feature is exclusively not available in vSAN ESA?
Which feature is exclusively not available in vSAN ESA?
What is the recommended overhead percentage for vSAN metadata calculations?
What is the recommended overhead percentage for vSAN metadata calculations?
Which storage policy is recommended for a production environment with high availability needs?
Which storage policy is recommended for a production environment with high availability needs?
What is the ideal method for connecting availability zones in stretched vSAN clusters?
What is the ideal method for connecting availability zones in stretched vSAN clusters?
What is included in the vSAN design and sizing guide for formatting overhead without deduplication?
What is included in the vSAN design and sizing guide for formatting overhead without deduplication?
Which of the following factors must be verified when using vSAN ReadyNode recommendations?
Which of the following factors must be verified when using vSAN ReadyNode recommendations?
What is the maximum size for the thin provisioned VM home namespace in vSAN?
What is the maximum size for the thin provisioned VM home namespace in vSAN?
What percentage of CPU overhead should be considered for vSAN when sizing?
What percentage of CPU overhead should be considered for vSAN when sizing?
Which characteristic of storage I/O controllers is preferred to enhance performance in vSAN?
Which characteristic of storage I/O controllers is preferred to enhance performance in vSAN?
How does vSAN ensure availability during maintenance mode?
How does vSAN ensure availability during maintenance mode?
What should be considered regarding resync traffic in a vSAN environment?
What should be considered regarding resync traffic in a vSAN environment?
What flexibility does VMware Cloud Foundation 5.2 provide regarding storage clustering?
What flexibility does VMware Cloud Foundation 5.2 provide regarding storage clustering?
What limitation is associated with disaggregated vSAN Max deployments?
What limitation is associated with disaggregated vSAN Max deployments?
At what point must the selection of vSAN HCI or vSAN Max be made?
At what point must the selection of vSAN HCI or vSAN Max be made?
What is the major feature of vSAN Max support under VMware Cloud Foundation?
What is the major feature of vSAN Max support under VMware Cloud Foundation?
What storage capacity range is offered per vSAN Max host?
What storage capacity range is offered per vSAN Max host?
Which statement is true regarding vSAN ESA clusters?
Which statement is true regarding vSAN ESA clusters?
What is a consequence of host removal regarding vSAN ESA's default storage policy?
What is a consequence of host removal regarding vSAN ESA's default storage policy?
How is storage presented in vSAN Max and VMware Cloud Foundation?
How is storage presented in vSAN Max and VMware Cloud Foundation?
What is a requirement for the minimum number of ESXi hosts in a VI workload domain?
What is a requirement for the minimum number of ESXi hosts in a VI workload domain?
What is the role of the witness site in a stretched cluster configuration?
What is the role of the witness site in a stretched cluster configuration?
Which statement best describes the configuration of availability zones in a stretched cluster?
Which statement best describes the configuration of availability zones in a stretched cluster?
What is the primary purpose of using a stretched cluster during planned maintenance?
What is the primary purpose of using a stretched cluster during planned maintenance?
How do fault domains work in a stretched cluster?
How do fault domains work in a stretched cluster?
What is a primary use case for implementing vSAN Max?
What is a primary use case for implementing vSAN Max?
Which characteristic applies to vSAN Max's management system?
Which characteristic applies to vSAN Max's management system?
What is a recommended hardware configuration for vSAN's performance?
What is a recommended hardware configuration for vSAN's performance?
What allows for storage optimization in application licensing according to vSAN Max?
What allows for storage optimization in application licensing according to vSAN Max?
Why is it beneficial to extend the life of existing hardware assets with vSAN Max?
Why is it beneficial to extend the life of existing hardware assets with vSAN Max?
What is a recommended minimum memory requirement for a fully operational vSAN?
What is a recommended minimum memory requirement for a fully operational vSAN?
Which RAID configuration is indicated to offer the highest fault tolerance?
Which RAID configuration is indicated to offer the highest fault tolerance?
What does vSAN Max contribute to private AI environments?
What does vSAN Max contribute to private AI environments?
Which of the following is essential for achieving higher performance in vSAN configurations?
Which of the following is essential for achieving higher performance in vSAN configurations?
What does vSAN Max help normalize within storage management?
What does vSAN Max help normalize within storage management?
Flashcards
vSAN ESA
vSAN ESA
vSAN Express Storage Architecture, a new disk architecture for vSAN 8 that utilizes storage pools, making each disk independent.
vSAN Storage Pools
vSAN Storage Pools
vSAN storage pools manage independent storage devices, unlike earlier OSA architecture, which is affected by disk cache failures.
Single-Tier Architecture
Single-Tier Architecture
A storage architecture in vSAN ESA where data is written directly to storage without needing a cache intermediary layer.
NVMe flash devices
NVMe flash devices
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Log-Structured File System (LFS)
Log-Structured File System (LFS)
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Stripe Buffer
Stripe Buffer
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Full-Stripe Write
Full-Stripe Write
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I/O Amplification
I/O Amplification
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vSAN
vSAN
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SPBM (Storage Based Policy Management)
SPBM (Storage Based Policy Management)
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Object-based storage
Object-based storage
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Failures to Tolerate (FTT)
Failures to Tolerate (FTT)
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RAID-1 policy
RAID-1 policy
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Object Components
Object Components
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Virtual Machine (VM) Disk
Virtual Machine (VM) Disk
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Default Policy
Default Policy
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ESXi Hosts
ESXi Hosts
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Capacity/Erasure Coding
Capacity/Erasure Coding
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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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Maintenance Mode Impact on vSAN
Maintenance Mode Impact on vSAN
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Availability Zones in VCF
Availability Zones in VCF
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Storage Pools
Storage Pools
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vSAN Deduplication
vSAN Deduplication
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vSAN Compression
vSAN Compression
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vSAN ReadyNode
vSAN ReadyNode
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Greenfield Deployment
Greenfield Deployment
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NVMe SSDs
NVMe SSDs
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FTT
FTT
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RAID-1
RAID-1
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RAID-5
RAID-5
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RAID-6
RAID-6
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Erasure Coding
Erasure Coding
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Minimum hosts for RAID-5
Minimum hosts for RAID-5
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Minimum hosts for RAID-6
Minimum hosts for RAID-6
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vSAN Storage Policies
vSAN Storage Policies
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VM Compliance
VM Compliance
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Deduplication and Compression
Deduplication and Compression
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Deduplication
Deduplication
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Compression
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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Why does vSAN ESA only use NVMe SSDs?
Why does vSAN ESA only use NVMe SSDs?
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What are the minimum requirements for vSAN ESA?
What are the minimum requirements for vSAN ESA?
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What is a vSAN ReadyNode?
What is a vSAN ReadyNode?
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What is 'greenfield deployment'?
What is 'greenfield deployment'?
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What are the key advantages of vSAN ESA?
What are the key advantages of vSAN ESA?
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vSAN ESA Storage Pools
vSAN ESA Storage Pools
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vSAN ESA Default Policy
vSAN ESA Default Policy
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Auto-Policy Management
Auto-Policy Management
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Compression in vSAN ESA
Compression in vSAN ESA
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Granular storage policies
Granular storage policies
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vSAN ESA and Per-Object Storage Policies
vSAN ESA and Per-Object Storage Policies
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I/O Amplification Reduction in vSAN ESA
I/O Amplification Reduction in vSAN ESA
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Concatenated RAID-0 in vSAN ESA
Concatenated RAID-0 in vSAN ESA
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Flash-read cache reservation, Storage Tier (in vSAN ESA)
Flash-read cache reservation, Storage Tier (in vSAN ESA)
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vSAN ESA policy-based
vSAN ESA policy-based
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Removing hosts from vSAN ESA
Removing hosts from vSAN ESA
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vSAN Max as primary storage
vSAN Max as primary storage
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vSAN Max storage cluster
vSAN Max storage cluster
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Disaggregated vSAN Max
Disaggregated vSAN Max
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vSAN Max storage capacity
vSAN Max storage capacity
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VMware Cloud Foundation licensing
VMware Cloud Foundation licensing
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Stretched cluster with vSAN Max
Stretched cluster with vSAN Max
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vSAN Max deployment limitations
vSAN Max deployment limitations
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Retroactive vSAN HCI/Max switch
Retroactive vSAN HCI/Max switch
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Storage Refreshes with vSAN Max
Storage Refreshes with vSAN Max
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Application and Hardware cost optimization with vSAN Max
Application and Hardware cost optimization with vSAN Max
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Extend the Life of Existing Hardware with vSAN Max
Extend the Life of Existing Hardware with vSAN Max
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Consistent Management Experience with vSAN Max
Consistent Management Experience with vSAN Max
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Policy-Driven Storage
Policy-Driven Storage
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SPBM (Storage Policy Based Management)
SPBM (Storage Policy Based Management)
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vSAN Default Policy
vSAN Default Policy
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vSAN Max Use Cases
vSAN Max Use Cases
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Hardware Cost Optimization with vSAN Max
Hardware Cost Optimization with vSAN Max
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Extending Hardware Lifecycles with vSAN Max
Extending Hardware Lifecycles with vSAN Max
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vSAN Max for Cloud Native
vSAN Max for Cloud Native
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vSAN Max for Private AI
vSAN Max for Private AI
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vSAN Max Capacity
vSAN Max Capacity
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vSAN Storage Pools (ESA)
vSAN Storage Pools (ESA)
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vSAN ESA New I/O Engine
vSAN ESA New I/O Engine
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vSAN Maintenance Mode Impact
vSAN Maintenance Mode Impact
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vSAN Sizing for Production
vSAN Sizing for Production
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FTT (Failures To Tolerate)
FTT (Failures To Tolerate)
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vSAN Pass-Through
vSAN Pass-Through
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vSAN Performance Service
vSAN Performance Service
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Stretched vSAN Clusters in VCF
Stretched vSAN Clusters in VCF
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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 Stretched Cluster
Minimum Hosts for Stretched Cluster
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Management Cluster Stretched First
Management Cluster Stretched First
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FTT for Raid-1
FTT for Raid-1
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FTT for Raid-5 and Raid-6
FTT for Raid-5 and Raid-6
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Erasure Coding Savings
Erasure Coding Savings
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What is the minimum number of hosts for RAID-5?
What is the minimum number of hosts for RAID-5?
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What is the minimum number of hosts for RAID-6?
What is the minimum number of hosts for RAID-6?
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Deduplication and Compression in vSAN
Deduplication and Compression in vSAN
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What is the role of a Witness Site in a stretched cluster?
What is the role of a Witness Site in a stretched cluster?
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Storage Policy Based Management (SPBM)
Storage Policy Based Management (SPBM)
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Maintenance Mode Impact
Maintenance Mode Impact
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Stretched vSAN Cluster
Stretched vSAN Cluster
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Availability Zones
Availability Zones
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VCF Design Principles
VCF Design Principles
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Deduplication & Compression in vSAN ESA
Deduplication & Compression in vSAN ESA
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vSAN Max Stretched Cluster Support
vSAN Max Stretched Cluster Support
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vSAN Max Limitations
vSAN Max Limitations
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vSAN ESA Policy-based Deduplication & Compression
vSAN ESA Policy-based Deduplication & Compression
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vSAN ESA Requirements
vSAN ESA Requirements
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vSAN ESA Advantages
vSAN ESA Advantages
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vSAN ESA I/O Amplification Reduction
vSAN ESA I/O Amplification Reduction
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Storage Refreshes
Storage Refreshes
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Hardware Cost Optimization
Hardware Cost Optimization
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Extending Hardware Lifecycles
Extending Hardware Lifecycles
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Cloud-Native Environments
Cloud-Native Environments
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Private AI
Private AI
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Storage Pools (ESA)
Storage Pools (ESA)
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vSAN Overhead
vSAN Overhead
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vSAN Maintenance Mode
vSAN Maintenance Mode
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vSAN FTT (Failures To Tolerate)
vSAN FTT (Failures To Tolerate)
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vSAN Stretched Cluster
vSAN Stretched Cluster
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Study Notes
Policy Driven Storage System
- Storage-based policy management (SPBM) with VCF assets ensures:
- Specified capacity levels
- Performance
- Availability
- Redundancy
- Storage policies categorize storage for service levels and configure VM disks for optimal configurations. Data protection is ensured through object-based fault tolerance.
- SPBMs are a set of predefined rules.
Traditional VM Storage
- VM disks are pointed to flat.vmdk files on the storage array. A storage admin must be involved in configuring LUNs.
- Understanding the physical disk makeup (how many, mirrored, etc.) and capacity may require additional interaction with the storage administration team.
Policy Driven Object-Based Storage
- VSAN policies protect NSX, SDDC Manager, workload VMs, and VSAN data by strategically placing data objects across the datastore.
- Storage policies apply to VM home namespaces, VMDK objects, thin-provisioned VM swap objects, snapshot delta objects, VM memory objects, VSAN Datastore data objects, VSAN performance data objects, and VSAN File System Service.
vSAN Storage
- Objects (like flat.vmdk) have components that make up the object.
- Redundancy is necessary for components. For a flat.VMDK, it needs to be on multiple ESXi hosts. Mirroring copies can be part of the policy.
Failures to Tolerate (FTT)
- Default policy is 1 failure to tolerate.
- Modifying a vSAN Default Storage Policy involves creating a new copy and modifying as needed.
- Policy changes affecting many objects could take time to process and should be implemented in stages.
- Host count requirements can vary based on the FTT value.
RAID Comparisons
- RAID 1 mirroring offers no space saving, compared to Raid5 or Raid6 which offer space savings.
- Additional ESXi hosts are needed for increased FTT values for RAID 5 and RAID 6.
- FTT of 1 requires 3 hosts for RAID 1, and 4 hosts for RAID 5 or RAID 6.
- FTT of 2 requires 5 hosts for RAID 1, and 6 hosts for RAID 5 or RAID 6.
vSAN Storage Policy Consumption Comparison
- RAID 0 / FTT 0: 1 component, 1 host; 100 GB storage.
- RAID 1 / FTT 1: 3 components, 3 hosts, 200 GB storage.
- RAID 1 / FTT 2: 5 components, 5 hosts, 300 GB storage.
- RAID 1 / FTT 3: 7 Components, 7 hosts, 400 GB storage.
- RAID 5 / FTT 1: 4 components, 4 hosts; 133GB of storage.
- RAID 6 / FTT 2: 6 components, 6 hosts; 150GB of storage
Deduplication and Compression
- Reduces data storage by ensuring only a single instance of redundant data is stored.
- Requires all-flash architecture.
- Deduplication removes redundant data blocks, Compression reduces the size of each data block.
- This is performed in the cache tier to the capacity tier. A 4KB block size is used.
vSAN ESA (Express Storage Architecture)
- Uses current and future hardware to increase data security, performance, and space efficiency.
- vSAN ESA utilizes NVMe technology for high-performance and scalability. This uses the current and future hardware better.
- Supports only all-flash configurations, no two-tier disk construct (now single tier, storage pools).
- This also does not have granular storage policies (per VMDK), but instead, per-object storage policies.
- Compression is on by default; Granular storage policies are not supported, and the number of disk stripes per object is not relevant.
vSAN ESA Configuration
- vSAN ESA requires 32 CPUs and 512 GB RAM minimum
- Requires 25 Gbps NIC for vSAN traffic, 10 Gbps for VM/management traffic and NVMe SSDs, Class D or F for performance
- No support for SAS and SATA devices
- Requires at least 1.6 TB disk size
vSAN ESA Cluster
- Deploying vSAN ESA cluster: use the API.
- Creating a new vSAN ESA cluster: in either a new VI workload domain or an existing one, and use vSAN ESA as the storage type for hosts.
- No in-place upgrades.
- Supports NVMe TLC, and other high-performing configurations only.
VM Storage Policies
- Policies are used how objects are stored in VMs.
- Policies can be applied and can be changed.
- Policies are applied to objects like VMDKs.
vSAN Log-Structured File System (LFS)
- The vSAN LFS reduces I/O amplification.
- It's compatible with future device types.
- It provides high-performance snapshots.
- The LFS ingests small I/O, packages them into I/O blocks, and performs encryption, compression, and checksum.
- Writing happens to the performance leg, and then to the capacity leg.
vSAN Capacity Reporting
- Compression, is enabled by default unless you otherwise disable it.
- Granular policies are not supported for vSAN ESA.
- Auto-Policy Management configures optimized policies based on cluster size.
vSAN for stretched clusters
- Availability zones.
- Witness host.
- Must configure NSX Edge gateways for failover to AZ2.
- Configure IP prefix lists for outbound advertisements.
- Configuring inbound and outbound route maps.
- Added BGP neighbors for AZ2 and configuring route maps as route filters.
- Networking round-trip time (RTT) must be less than or equal to 5 milliseconds in both availability zones.
- For planned or unplanned downtime.
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Description
Test your knowledge on VMware vSAN ESA design and sizing concepts through this insightful quiz. Explore topics such as metadata overhead, storage policies, and system benefits specific to vSAN ESA. Perfect for those looking to deepen their understanding of efficient storage solutions in VMware environments.
