ESXi 5.5 Help

[fbifido]

What does this block size mean?
Can it be change to 4k, 8k, 16k, 32k or 64k?
Does this affect the performance of the iSCSI LUN?

if image does not show above:
http://i39.tinypic.com/21espxz.png

[jaikumarm]

ESX 5.x uses a Unifed block size of 1MB for VMFS 5.x volumes, so you cant change it. However VMFS 5.x uses a 8K sub-allocation size for I/O so as long as you underlying device uses blocks in 8K increments you are fine.

[Bohdan (staff)]

fbifido,

http://www.vmware.com/files/pdf/vmfs-be ... ces-wp.pdf
http://kb.vmware.com/selfservice/micros ... Id=2003813