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Posts Tagged ‘Reconfigure’

How to change a disk’s block size

December 29th, 2008 No comments

With few exceptions, disk drives are set to 512 bytes per block, and operating systems expect disks to be formatted to 512 bytes per block. In fact, some operating systems and/or disk controllers won’t even “see” disks that aren’t formatted to 512 bytes/block.  Certain RAID controllers require disks to be formatted to 520 or 528 bytes/block.  EMC, and NetApp are two vendors that format their disks to use these extra bytes.  (In case you were wondering, they do this in order to increase data integrity, as the extra bytes are used for ECC.

I have gotten a great deal of calls from people who bought used EMC or NetApp gear Read more…