Re: doubt about resync - raid1

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


hummm, i think i forgot the resync on sync_action
hehehe thanks a lot! :)

2012/5/17 Marcus Sorensen <shadowsor@xxxxxxxxx>:
> Did you do that to all of the related arrays? what does
> /sys/block/md1/md/sync_action show? Perhaps its just paused and you
> can start it manually by echoing 'resync' into it.
>
> On Thu, May 17, 2012 at 9:57 AM, Roberto Spadim <roberto@xxxxxxxxxxxxx> wrote:
>> 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
>>> > the body of a message to majordomo@xxxxxxxxxxxxxxx
>>> > More majordomo info at  http://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
>>
>>
>>
>>
>> --
>> Roberto Spadim
>> Spadim Technology / SPAEmpresarial
> --
> 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



-- 
Roberto Spadim
Spadim Technology / SPAEmpresarial
--
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


[ATA RAID]     [Linux SCSI Target Infrastructure]     [Managing RAID on Linux]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device-Mapper]     [Kernel]     [Linux Books]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Photos]     [Yosemite Photos]     [Yosemite News]     [AMD 64]     [Linux Networking]

Add to Google Powered by Linux