Messages in this thread | | | Date | Sat, 16 Feb 2008 17:38:13 +1100 | From | "Omar Kilani" <> | Subject | aacraid: Host adapter reset request. SCSI hang ? |
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Hi there,
We're having issues with our Adaptec RAID controller and I was wondering if anyone would be able to advise on how to go about resolving them. :)
The system:
RHEL 5.1 x86_64 Kernel 2.6.18-53.1.4.el5 aacraid 1.1-5[2437]-mh4 (The default module shipped with the RHEL kernel)
The controller:
Adaptec 3405 + BBU
BIOS : 5.2-0 (12415) Firmware : 5.2-0 (12415) Driver : 1.1-5 (2437) Boot Flash : 5.2-0 (12415)
The disks:
4x Seagate ST373455SS (Firmware 0002) in a RAID10
The issue:
We continually get what seem to be adapter lockups with the error:
aacraid: Host adapter abort request (3,0,0,0) aacraid: Host adapter reset request. SCSI hang ?
The controller hangs for a while, recovers, and everything continues normally.
We've tried a replacement controller and a replacement set of disks (we swapped out all 4 disks) to no avail.
The problem seems (?) to happen during spikes of IO -- like when the PostgreSQL autovacuum daemon kicks in. But not always.
From searching around LKML and Google, this seems to be a fairly common issue, but I'm not quite clear on the cause (hardware? software? firmware?) or the resolution.
Any help would be greatly appreciated.
Thanks!
Regards, Omar
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