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DL380 G3 - 6404 array hangs

Vince Blankenborg
Occasional Advisor

DL380 G3 - 6404 array hangs

We have 3 DL380 G3 servers that exhibit same 6404 hang problem.

Disk arrays connected to the 6404 array adapter hang about once per month.

Configuration has Redhat AS 3.0 operating system files on one disk array controller 5i and the Oracle application and data files on the second controller 6404.

When problem occurs the operating system / kernel is still operational however can no longer access any of the Oracle application/data files on the 6404 array controller.

System CPU usage goes from 8 to 100 %

IOWAIT goes to 98%

using iostat -x it shows all disks on 6404 array controller at 6000 % utilization

Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17500.00 0.00 0.00 6250.00

Have used the HP firmware maintenance cd 7.20 and updated ALL ROM/Firmware.

Any suggestions?