Dell PowerVault MD3000i Dell PowerVault MD3000/MD3000i Array Tuning Best Pract - Page 26
December 2008 - Revision A01,
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Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices Microsoft provides the diskpar.exe utility as part of the Microsoft Windows 2000 Resource Kit, which was renamed to diskpart.exe in Microsoft Windows 2003 and later. Microsoft has a KB article 929491 covering this, and Dell™ always recommends checking for proper partition alignment to the stripe size of assigned virtual disks. Using these utilities, the starting sector in the master boot record can be set to a value that ensures sector alignment for all I/Os. Use a multiple of 64, such as 64 or 128. Applications such as Microsoft Exchange count on proper partition alignment to the disk stripe boundary. For Microsoft's usage details about diskpart.exe, go to http://technet.microsoft.com/en-us/library/aa995867.aspx. WARNING: Changes made to the alignment of existing partitions will destroy data. December 2008 - Revision A01 Page 26