The upgrade went fine except I file writes to the new system are so slow the system is unusable. On the server iostat shows a transfer rate of ~40KB/s and an iowait of 20 during AFS operations. If I stop the fileserver and perform io directly on the XRaid I can read and write between 100MB/s-500MB/s.
Does anyone have any suggestions on how I might trouble shoot this problem? So far I've checked network performance, io performance directly to the XRaid, and the reisfer filesystem. It all seems to be pointing me back to the some problem is the AFS fileserver.
Hardware: HP DL380 2x2.8ghz Hyperthreaded Xeon CPU 4 Gigs of RAM Gigabit ethernet MPTFusion fiber channel card Apple XRaidI've got 2 other identical box currently run AFS and working fine. The only difference is the other boxes are running an old OS.
Derek Harkness System Administrator University of Michigan-Dearborn (313) 593-5089
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