I am using Suse 10.2 on two different machines. One is a new Dell Poweredge
2970, the other is an older (2002) "no-name" server. Both have experienced a
strange and severe problem since I installed Suse.
Basically the file system is put into a read-only state. While the OS and all
apps are still running and I can log in a view files/logs etc. nothing can
write to the disks. Obviously this causes all kinds of problems. The only way
to get the filesystem into a more interactive state is a hard reboot.
The first two times this occurred, there were messages in the /var/log/messages
file relating to megasas, however as soon as the system was restarted, these
warnings disappeared. I believe the file was not actually written to the disk
when the system freaked out so once logging resumed those entries were lost.
The messages are somewhat similar to these that I found via a Google search:
sd 1:2:0:0: megasas: RESET -286287 cmd=8a
megasas: [ 0]waiting for 12 commands to complete
megasas: [ 5]waiting for 12 commands to complete
megasas: [10]waiting for 12 commands to complete
megasas: [15]waiting for 12 commands to complete
...
megasas: [170]waiting for 12 commands to complete
megasas: [175]waiting for 12 commands to complete
megasas: failed to do reset
sd 1:2:0:0: megasas: RESET -286287 cmd=8a
megasas: cannot recover from previous reset failures
sd 1:2:0:0: megasas: RESET -286287 cmd=8a
megasas: cannot recover from previous reset failures
sd 1:2:0:0: scsi: Device offlined - not ready after error recovery
Saturday the problem happened on the Dell server, although this time there is
no mention of megasas in the logs files.
A search of this list did not find any reference to megasas and all too many
unrelated results for a read-only filesystem :).
System Specs:
Dell PowerEdge 2970
Opteron 2.0GHz 64-bit
4 GB memory
3x 73GB Hard Drive (RAID 5)
PERC 5i
"No-name server"
Dual P3 1GHz
1GB memory
Dual 36GB hard drives (no RAID)
I appreciate any help. Let me know if more information is needed.
Thanks
Tim Donnelly
Systems/Network Administrator
Colorado Alliance of Research Libraries
(303)759-3399 x106
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