* Programmatically check "global" RAID state?
@ 2020-07-16 13:38 Ian Pilcher
2020-07-16 13:54 ` Reindl Harald
0 siblings, 1 reply; 2+ messages in thread
From: Ian Pilcher @ 2020-07-16 13:38 UTC (permalink / raw)
To: linux-raid
I want to write a quick script/program for my NAS that will initiate a
check of one of my RAID devices every night. However, I want it to skip
the check if either of the following is true:
* Another check/resync is in process on any RAID device, or
* Any of the RAID devices on the system are unhealthy (degraded or
failed).
Is there any way to programmatically check the "global" status of the
RAID subsystem like this, or am I stuck iterating through all of the
devices (likely via sysfs) and checking them individually? (I'm pretty
sure that I am "stuck" but wanted to check just in case.)
Thanks!
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Programmatically check "global" RAID state?
2020-07-16 13:38 Programmatically check "global" RAID state? Ian Pilcher
@ 2020-07-16 13:54 ` Reindl Harald
0 siblings, 0 replies; 2+ messages in thread
From: Reindl Harald @ 2020-07-16 13:54 UTC (permalink / raw)
To: Ian Pilcher, linux-raid
Am 16.07.20 um 15:38 schrieb Ian Pilcher:
> I want to write a quick script/program for my NAS that will initiate a
> check of one of my RAID devices every night. However, I want it to skip
> the check if either of the following is true:
>
> * Another check/resync is in process on any RAID device, or
>
> * Any of the RAID devices on the system are unhealthy (degraded or
> failed).
>
> Is there any way to programmatically check the "global" status of the
> RAID subsystem like this, or am I stuck iterating through all of the
> devices (likely via sysfs) and checking them individually? (I'm pretty
> sure that I am "stuck" but wanted to check just in case.)
cat /proc/mdstat | grep -P 'cond1|cond2|cond3' should do the trick, if
the output is empty: go
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2020-07-16 13:38 Programmatically check "global" RAID state? Ian Pilcher
2020-07-16 13:54 ` Reindl Harald
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