StarWind iSCSI SAN
StarWind Native SAN for Hyper-V

ESXi 5.5 Help

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ESXi 5.5 Help

Postby fbifido » Fri Oct 11, 2013 6:06 am


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?

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Re: ESXi 5.5 Help

Postby jaikumarm » Fri Oct 11, 2013 8:40 am

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.
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