slow RAID5 on Z800 (106 Views)
Posts: 14
Registered: ‎12-30-2009
Message 1 of 1 (106 Views)

slow RAID5 on Z800

A RAID5 volume has slow writes (40MB/s) vs. virtually the same configuration on another Z800 (100MB/s writes) and I can't figure out why. Would much appreciate any ideas.

- Z800 FM007UT 5506, 4GB RAM, 160GB Boot HD, Win7 Pro 64-bit - fresh out of the box
- RAID5 set using Intel Rapid Storage Technology Utility 3 Hitachi 7K2000 drives, all manufactured in 2010.

On an equally configured Z800, RAID5 reads are 240MB/s, writes - 100MB/s. On this one - 240MB/s reads, 40MB/s writes. Drives tested individually and are all good, each testing at over 110MB/s read/writes.

This slow RAID5 volume physically transferred to a known good Z800 - still has slow writes.

Any ideas? Thanks!
"Any sufficiently advanced technology is indistinguishable from magic." - Arthur C. Clarke
The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.