What is the Maximum file size (2MB VMFS-3 block size)?
A.
256GB
B.
512GB
C.
1TB
D.
2TB minus 512 bytes
What is the Maximum file size (2MB VMFS-3 block size)?
What is the Maximum file size (2MB VMFS-3 block size)?
Leave a Reply
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
correct answer B. 512GB
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