Re: doubt about resync - raid1

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i did this and don't worked
echo 1 > /sys/block/md1/md/sync_force_parallel

at /proc/mdstat
/dev/md1 appears as sync
but stay at 0%
and after /dev/md0 resync /dev/md1 start

there's another way to force sync?

2012/5/17 Marcus Sorensen <shadowsor@xxxxxxxxx>
>
> see /sys/block/md[0,1,2]/md/sync_force_parallel
>
> On Thu, May 17, 2012 at 9:50 AM, Roberto Spadim <roberto@xxxxxxxxxxxxx> wrote:
> > hi guys, i was running a resync in a non-normal hardware instalation
> >
> > it's a server with 4 disks, they are in a raid hardware controller (perci
> > from dell)
> > disk 1-2 are raid1 and linux know it about /dev/sda
> > disk 3-4 are raid1 and linux know it about /dev/sdb
> >
> > well i add more 4 disks
> > disk 5-6 raid1 with /dev/sdc
> > disk 7-8 raid1 with /dev/sdd
> >
> > nice...
> > well /dev/sda and /dev/sdb have same partitions (/dev/sda1, 2 3 4) and have
> > some md devices in this partitions..
> > /dev/md0 = /dev/sda1 /dev/sdb1
> > /dev/md1 = /dev/sda2 /dev/sdb2
> > /dev/md2 = /dev/sda3 /dev/sdb3
> > all raid 1 too
> >
> > i create same partitions on /dev/sdc, /dev/sdd
> > and add they to md raid1
> > /dev/md0 = /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1
> > /dev/md1 = /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2
> > /dev/md2 = /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3
> >
> >
> > nice..
> > mdadm start resync...
> > the point is...
> > /dev/sda1 start copies to /dev/sdc1 and /dev/sdd1, i checked this with
> > iostat -d 1 -k, and server is idle, only mdadm and raid is running,
> > /dev/sda1 have reads and /dev/sdc1 and /dev/sdd1 have writes
> > nice..
> >
> > the problem is...
> > /dev/sdc2 and /dev/sdd2 didn't start sync while /dev/md0 is running, since
> > they share the same devices (/dev/md0 => /dev/sda1, /dev/md1 => /dev/sda2)
> >
> > could i force a sync in /dev/md1??
> > since /dev/sda is a raid1 hardware, it can handle two disks without
> > performace problems...
> > it have 2 heads, in others words the mdadm disk balance isn't perfect here
> > to this solution, but works... the problem is sync not running, if i could
> > force it every things could be allright
> >
> > i must check kernel version, it's about 2.6.3x, 1 year old +-
> >
> > well that's it, any ideas?
> >
> >
> > ***
> > sorry if i send two emails, the email was configured to HTML/RICH TEXT text
> >
> >
> > --
> > Roberto Spadim
> > Spadim Technology / SPAEmpresarial
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-raid" in
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--
Roberto Spadim
Spadim Technology / SPAEmpresarial
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