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Which action should the administrator take?

The current block size of a datastore in VMFS3 is 4MB. An administrator needs to upgrade the
datastore to VMFS5 and wants to change it to 1MB block size.
Which action should the administrator take?

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A.
Upgrade the datastore to VMFS 5. Select the 1MB block size option during the upgrade.

B.
Create a new VMFS5 datastore with a 1MB block size. Migrate all virtual machines from the
existing datastore to the new datastore, then delete the VMFS3 datastore.

C.
Upgrade the datastore to VMFS5. Use vmkfstools to change the block size on the upgraded
datastore.

D.
Create a new VMFS5 datastore with a 1MB block size. Migrate all virtual machines from the
existing datastore to the new datastore. Upgrade the virtual machine hardware on the migrated
VMs, then delete the VMFS3 datastore.

Explanation:

2 Comments on “Which action should the administrator take?

  1. babar.munir says:

    B is correct

    Upgraded VMFS-5 partitions will retain the partition characteristics of the original VMFS-3 datastore, including file block-size, sub-block size of 64K, etc. To take full advantage of all the benefits of VMFS-5, migrate the virtual machines to another datastore(s), delete the existing datastore, and re-create it using VMFS-5.

    http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2003813




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  2. 3utterfly says:

    B : Create a new VMFS5 datastore with a 1MB block size. Migrate all virtual machines from the existing datastore to the new datastore, then delete the VMFS3 datastore




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