format command hanging..help please

2007-12-25 4:37:00

I am having issues with the disks on a system that I am maintaining

We keep getting failled disks from two separate A5200 disk arrays at a very
high rate.

Recently after 5 were repalced, we got three failures almost immediately..

the metastat command used to hang on for about 2 minutes about the the fifth
of seven mirrors
that it was reporting on and then finished quickly.

the command takes less time to finish now, but still pauses for a second or so
on the fifth mirror.

now the format command just hangs, so I cannot access the disk geometry.

I have never seen this behaviour before and suspect that the fibre loop or
disk drives have
issues. The hardware is supported by a third party so i need a plausible
hypothesis
to present to them to get the hardware checked.

Could someone please provide me with any information

Thanks

Adrian Picot
New Zealand

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