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Bad performance with ServeRAID 5i

Forum Storage : General Storage - Bad performance with ServeRAID 5i

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Hi
I have a xSeries 225 server with a ServeRAID 5i SCSI RAID, which is
only able to read with 25MB/s. It has 4 Ultra320 disks installed
running raid 5 (8KB stripes) without any hotswaps. I have have two
logical drives, 20GB and 400GB, and am running Windows 2003 Server.
BIOS, firmware and Windows drivers are all version 7.0.14. I have
tried with a fresh Windows 2003 server, Windows XP, version 6.10.24
drivers and a recreation of the raid, but without luck. Does anyone
have an idea about what can be wrong?

Sincerely
Peter Kristensen
VR-Bar Administrator
Technical University of Denmark

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