On Mon, 12 Nov 2012 16:07:28 +0000 Benjamin ESTRABAUD <be@xxxxxxxxxx> wrote: > Hi! > > You could setup a cron job that will pause the resync by writing to sysfs: > > If your array if "md0": > > echo "idle" > /sys/block/md0/md/sync_action "idle" is not sufficient. It will stop the recovery, but then it will immediately start again. You need "frozen". NeilBrown > > However, this is probably not necessary as the resynced stripes will be > marked in the bitmap, meaning that if your rebuild fails, re-assembling > the array should restart the resync from where it stopped. > > Regards, > Ben. > > On 12/11/12 12:44, Salatiel Filho wrote: > > Hi guys, i have an external USB enclosure with 4 disks in RAID5 mode > > using mdadm. I dont know exactly why but if i use this disks for > > massive I/O for lots of hours (over 12 hours), linux usually eject > > some or all disks (causing a faulty in the raid) and remaps them: sdb > > -> sdf , sdc -> sdg , sdd -> sdh , sde -> sdi > > Well , this was never exactly a problem because most of the time those > > disks are idle (just backup), but i had a real disk failure and i will > > replace the disk. But probably the rebuild process will take a lot > > more than 12 hours so the chances are that some disk will be ejected > > and i will be in a trouble situation where a raid5 rebuilding process > > will probably be stopped by an apparently failure. So my question is: > > > > If i get into that situation , will i be able to disassemble and > > reassemble the disk using the three disks i know are 'fine' and > > restart the rebuild process from where it stopped ? I have internal > > bitmap enabled. > > > > Is it possible to somehow freeze the rebuild process ? So i could > > pause the process for a few hours after 8 hours of work for example. > > > > The raid will be assembled but umounted during the rebuild proccess. > > > > I am using kernel 3.2.30. > > > > Thanks !!! > > > > > > []'s > > Salatiel > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > > the body of a message tomajordomo@xxxxxxxxxxxxxxx > > More majordomo info athttp://vger.kernel.org/majordomo-info.html > > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html
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