I've been pondering a particular configuration and am wondering if anyone else has some input on it.
If you have your Data, Logs, System and TempDB all in VMDK's and those VMDK's are formatted to 64K and then reside on Clustered Storage that is formatted as 4K, which is then running through a SAN controller that is reading and writing in 2MB chunks, is there value in formatting the SQL drives as 64K? Also, would it be better to format the Clustered Storage as 64K? Is this a situation in which formatting the SQL drives as 64K is becoming a moot point?