2V0-622 · Question #383
Which statements regarding datastore clusters meets VMware's recommended best practices?
The correct answer is B. Clusters should contain only datastores with equal hardware acceleration capability.. VMware's best practice for SDRS datastore clusters requires that all member datastores share the same hardware acceleration capability to ensure consistent Storage DRS behavior.
Question
Which statements regarding datastore clusters meets VMware's recommended best practices?
Options
- AClusters should contain only datastores presented from the same storage array.
- BClusters should contain only datastores with equal hardware acceleration capability.
- CClusters should contain only datastores with the same capacity.
- DClusters should contain only datastores using the same connection method (iSCSI, FC, etc.).
How the community answered
(22 responses)- A5% (1)
- B91% (20)
- C5% (1)
Why each option
VMware's best practice for SDRS datastore clusters requires that all member datastores share the same hardware acceleration capability to ensure consistent Storage DRS behavior.
VMware does not require datastores to originate from the same storage array; datastores from different arrays can coexist in a cluster as long as their capabilities match.
When datastores with different hardware acceleration (VAAI) capabilities are mixed in a datastore cluster, Storage DRS cannot uniformly leverage offload primitives such as full-copy or atomic test-and-set, leading to inconsistent performance and unreliable placement recommendations. VMware explicitly recommends ensuring all datastores in a cluster have the same VAAI capability level to avoid these disparities. Mismatched acceleration capability is considered the most operationally impactful configuration error in an SDRS cluster.
While similar capacity across datastores is advisable, VMware does not mandate exactly equal capacity as a best practice requirement for cluster membership.
Using a single connection method (FC, iSCSI, NFS) is not a VMware best practice requirement, and mixed protocols are not explicitly prohibited in an SDRS cluster.
Concept tested: SDRS datastore cluster hardware acceleration best practices
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-5E5E349A-4644-4C9C-B434-1C0243EBDC80.html
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