What is the Maximum file size (2MB VMFS-3 block size)?

What is the Maximum file size (2MB VMFS-3 block size)?

A.
256GB

B.
512GB

C.
1TB

D.
2TB minus 512 bytes

2 Comments on “What is the Maximum file size (2MB VMFS-3 block size)?

    1. admin says:

      You’re right.

      Ref: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003565

      VMFS Size Limitations

      There is no noticeable I/O performance difference when using a larger block size. The block size should be chosen based on the size of the largest file and virtual disk that must be stored. Choose the VMFS block size carefully when creating VMFS datastores, because there is no way to change the block size of a VMFS datastore once it is created. The datastore must be reformatted with the required block size.

      Block Size
      Largest virtual disk on VMFS-2
      Largest virtual disk on VMFS-3
      Largest virtual disk on VMFS-5
      1MB
      456GB
      256GB
      2TB minus 512B
      2MB
      912GB
      512GB
      Valid if upgraded from VMFS-3
      4MB
      1.78TB
      1TB
      Valid if upgraded from VMFS-3
      8MB
      2TB
      2TB minus 512B
      Valid if upgraded from VMFS-3
      16MB
      2TB
      Invalid block size
      Invalid block size
      32MB
      2TB
      Invalid block size
      Invalid block size
      64MB
      2TB
      Invalid block size
      Invalid block size

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