On 6/06/2014 10:11 PM, Andrew McGlashan wrote: > On 6/06/2014 12:08 AM, Andrew McGlashan wrote: >> The above script worked fine .... for around 45 minutes. > > Okay, another update. Sadly I've got a non-responsive server once again :( It almost completed the task on the first crypt device: DD_PID: 3622 dd,3622 if=/dev/zero of=/dev/mapper/md1_crypt bs=128M Saturday 7 June 14:09:36 EST 2014 27533+9 records in 27533+9 records out 3696161898496 bytes (3.7 TB) copied, 69967.8 s, 52.8 MB/s This is from the RAID1 (mdadm -D) details: Array Size : 3883658048 (3703.75 GiB 3976.87 GB) To shut down the system after a really bad kernel panic, do the following: Alt+SysRQ+e (sends TERM-signal, processes can shutdown properly (e.g. save data)) [not enabled] Alt+SysRQ+u (a sync will be done when unmounting anyway) Alt+SysRQ+i (for the processes that didn't listen for the TERM signal, this is a kill -9 process) [not enabled] Alt+SysRQ+b (reboot). After the reboot, I cannot find anything interesting in any logs, no hanging message, nothing. A.
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