Hi,

our DSS6 server is behaving strangely in the past few weeks.

Its been running just fine for about 3 years - now its having problems - it hangs like once a week. No Ping, nothing. Only thing we can do is reboot it.

Now this might be a coincidence but to me it seems these problems came with the update to 6.0up80.xxxx.5626 2011-08-18 b5626

Before then we never had these kind of problems.

The server completely freezes, no input using the keyboard (IPMI) is possible.

Just before the freeze there are errors in the "critial_errors.log":

Code:
2011/09/21 04:37:34|[48792.871267] scsi cmnd aborted, scsi_cmnd(0xffff88011061ae40), cmnd[0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0], scsi_id = 0x 0, scsi_lun = 0x 1.
2011/09/21 04:37:44|[48802.871272] scsi cmnd aborted, scsi_cmnd(0xffff88011061abc0), cmnd[0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0], scsi_id = 0x 0, scsi_lun = 0x 1.
2011/09/21 04:37:54|[48812.871271] scsi cmnd aborted, scsi_cmnd(0xffff8800a2b38d00), cmnd[0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0], scsi_id = 0x 0, scsi_lun = 0x 1.
2011/09/21 04:38:04|[48822.871269] scsi cmnd aborted, scsi_cmnd(0xffff8800727106c0), cmnd[0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0,0x 0], scsi_id = 0x 0, scsi_lun = 0x 1.
I checked the Memory using the memtest utlility at boot - memory seems to be fine.

RAID controller is an areca ARC-1261 with latest firmware 1.49

any hints? Maybe this is a known problem?

Thanks in advance!
Philipp