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software raid checking every week

Posted: 2020/12/22 04:55:09
by hendranata
helo
i notice there is:
/etc/cron,d/raid-check

0 1 * * Sun root /usr/sbin/raid-check

that is running every week..
if we change run once every month.. does it okay?

i want to change once for every month because seems every week sync mdadm eat lot of time and write process.. so my ssd lifetime will be reduced by going time..

maybe any idea?

Re: software raid checking every week

Posted: 2020/12/22 11:27:49
by TrevorH
RAID check does not write, it only reads. It will not reduce your SSD lifespan.

Re: software raid checking every week

Posted: 2020/12/25 13:16:20
by hendranata
TrevorH wrote:
2020/12/22 11:27:49
RAID check does not write, it only reads. It will not reduce your SSD lifespan.
okay if we change the cron every month instead of every week.. does it okay? no issue right?

Re: software raid checking every week

Posted: 2020/12/27 17:55:14
by Whoever
hendranata wrote:
2020/12/25 13:16:20
TrevorH wrote:
2020/12/22 11:27:49
RAID check does not write, it only reads. It will not reduce your SSD lifespan.
okay if we change the cron every month instead of every week.. does it okay? no issue right?
If things go wrong with your RAID systems, it may take longer for you to know about them and hence the situation may be worse. On the other hand, as long as you monitor the health of the drives (smartd/smartctl) and quickly replace any drives that show indications of failing (typically count of reallocated sectors increasing), the RAID systems are unlikely to go bad.

It all depends on what level of risk you can tolerate.

Re: software raid checking every week

Posted: 2020/12/28 01:09:59
by hendranata
so the normal way is sync every week?