Problems with RAID Array HP MSA500G2 DiskWait raises

[csu4 at fedex.com]

Are you running multi-path or just single-path? I'm having
the same problem and just wonder if this is something to do
with the multi-path.



Thx & Rgds,


schyu








                                                                                                                 
                    "Zurell, Falko                                                                               
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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

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Tel.: +49 (30) 97 006-264
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