On Mon, 27 Nov 2000, Mike Black wrote:
> I think the lack of the message "dirty sb detected, updating." is what's
> killing you.
> Try zeroing out the disk before you add it (cat /dev/zero >/hdc1).
>
> If you don't mount the disks and make a change than there's nothing to
> resync...the superblocks will match.
But it's going to resync if the other raid is finished.
Shouldn't raid devices with indepent disks resync at the same time.
I think with 2.4.0-test10 or so they did.
> www-neu:/root # cat /proc/mdstat
> Personalities: [raid1]
> read_ahead 1024 sectors
> md0: active raid1 hdc1[2] hda1[0]
> 51264 blocks [2/1] [U_]
>
> md1: active raid1 hdc2[2] hda2[0]
> 9970560 blocks [2/1] [U_]
>
> md2: active raid1 hdg1[2] hde1[0]
> 29316544 blocks [2/1] [U_]
> [=====>...............] recovery = 26.5% (7777792/29316544)
> finish=16.9min speed=21188K/sec
> unused devices: <none>
When md2 is finished then md1 is resynced. Shouldn't they do
resync at the same time?
I never saw "md: serializing resync,..." what I supected to get because
md0 and md1 share the same physical disks.
My findigs:
The md driver in 2.4.0-test11-ac4 does ALL raid-1 resyncs serialized!!!
Can someone replicate this with their system?
MfG / Regards
Friedrich Lobenstock
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