On 05/09/2017 10:13 PM, Ram Ramesh wrote:
Today, I noticed that my RAID6 md0 was assembled in degraded state
with two drives in failed state after a pm-suspend and restart. Both
of these drives were attached toSAS9211-8I controller. The other
drives are attached to motherboard. I have not had this on a normal
boot/reboot. Also, in this particular case, mythtv recording was going
on when suspended and therefore as soon as resumed that used this md0.
Upon inspection, it appears (I am not sure here) that mdadm assembled
the array even before the drives were ready to be used. All I had to
do was to remove and re-add them to bring the array back to "good"
state. I am wondering if there is a way to tell mdadm to wait for all
drives to be ready before assembling. Also, if there is something that
I can add to resume scripts that will help, please let me know.
Kernel: Linux zym 3.13.0-106-generic #153-Ubuntu SMP
mdadm - v3.2.5 - 18th May 2012
Failed drives are HGST NAS and WD Gold with less than a year of usage.
So I doubt they are bad drives by any means.
Ramesh
This happened again. I think no damage is done until I write to the
device. Once the write fails, it marks the component disk "failed" If I
can make it wait a shortwhile before writing happens, I think I should
be ok. Is there something possible with any of the thaw scripts that
will delay start of resume operation.
Ramesh
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