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Re: Adaptec AIC-79xx Problems

Andrew Miehs wrote:
Dear List,

We recently purchased a Supermicro server with an onboard adaptec scsi controller.

0000:03:02.0 SCSI storage controller: Adaptec AIC-7902B U320 (rev 10)
0000:03:02.1 RAID bus controller: Adaptec AIC-7902(B) U320 w/HostRAID (rev 10)

After seeing *** Dump Card State Ends *** the box crashes.

Does anyone else have these problems?



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Yes I do!

Lots! Been struggling for ages to find a reason.

Haven't found the exact cause yet, replaced EVERY single component barring cpus and chassis and it still happened. recently been putting all the disks in this box on separate power supplies by jerry-rigging them to work without being plugged into mobo. The more power supplies I use, the less errors, I'm now running 13 SCSI disks off 3x550W psus + 1x300W and I haven't had the error!
This may not be your problem.

Also look at cabling/termination. I thought mine was this but after changing many disks and many cables, I figure mine is nothing to do with this.

just my 2 cents.


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