I recently acquired 2 PE 2950s. They are identically configured, matching cards and firmware. The drive are also configured the same, seagate 15k 300gig in raid 10. writeback and adaptive readahead, cached IO. dual quad core x5355 procs, 32 gig ram. BIOS settings are also identical. perc 5i.
one performs flawlessly. unixbench give it a score of 3000+
the other is a dog, can't even make 1000 on unixbench, very poor IO speed and bad throughput scores.
to test I put a new perc and battery/cables in the bad server, and swapped the raid disk sets between them. After letting the battery charge and waiting for init to finish, still no difference at all in the scores. Running online diags finds no hardware faults, except the broadcom nic test doesn't seem to run (eth0 certainly works). No warnings in openmanage either, or anything of note in the logs.
Can anyone suggest what the fault might be in this case?