[CentOS] Automatical resync of MD, why?

Oliver Ransom oliver at ransom.com.au
Mon Nov 2 06:07:44 UTC 2009

When you cat /proc/mdstat does it actually say "syncing" or does it  
say "checking"? I believe a newer version of mdadm creates a weekly  
cron job to check the arrays. I first mistakenly assumed it was  
resyncing and started worrying since it was doing all 8 of my RAID1  
arrays at once, but after looking twice I saw it was actually just  
checking the arrays thanks to a new cronjob.


On 02/11/2009, at 6:40 AM, Jancio Wodnik wrote:

> Hi.
> My question is the same, why so many times my RAID 1 is resynced,  
> when i
> upgrade to CentOS 5.4 ? Any idea ? With may RAID1 is no all OK ? It is
> to worry about it ?
> Jancio Wodnik
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