Problems with RAID Array HP MSA500G2 DiskWait raises

Zurell, Falko (init) Falko.Zurell at init.de
Tue Nov 16 08:34:54 UTC 2004


Hello list,

We got a DL380 G4 box with a SmartArray 642 and a HP MSA 500 G2 RAID-Box attached. This box runs  RedHat Enterprise Server Linux release 3.
We have Oracle Database running on this machine where the datafiles reside on the RAID-Partition (ext3). The machine runs normal about half a day. Then suddenly the I/O-Wait on all four processor raise up to 100% and the load increases above 200.
One can't even copy a 3KB file on the raid array. The only way to get the machine running again is to switch off power and restart.

Unfortunatly there are no log messages in the log files regarding any error with the raid or the lilke.

Does anyone have an idea where to look or what to do to find the failure?

Thanks
---
Falko Zurell
]init[ Aktiengesellschaft für digitale Kommunikation

Rosenthaler Strasse 13
D-10119 Berlin
Tel.: +49 (30) 97 006-264
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