Got a customer that has an issue with NTFS corruption that is popping up on SAN attached storage. The LUN is RAID-10 (4:1 spindle ratio). The machines are Windows Server 2003 (64-bit), and they are in the planning stages to migrate to Windows 2008 R2 (64-bit).
The manufacture of the SAN (who shall remain nameless) is at a loss for what to do (or why they are occurring), and Microsoft Support has said to go to backups. (Not an easy thing, the backup method is BLOCK-LEVEL, not FILE-LEVEL. Any corruption on the drive is copied into the backup).
I know it's a long shot, but would it be worthwhile to run SpinRite on the LUN?