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* raid6 appears not-degraded just after creation
@ 2014-10-04 20:14 Ethan Wilson
  2014-10-05  0:24 ` Anssi Hannula
  0 siblings, 1 reply; 2+ messages in thread
From: Ethan Wilson @ 2014-10-04 20:14 UTC (permalink / raw)
  To: linux-raid

MD Raid6 appears not-degraded during initial resync just after creation:

md106 : active raid6 sdbv1[7] sdbr1[6] sdbq1[5] sdbp1[4] sdbo1[3] 
sdbn1[2] sdbm1[1] sdbl1[0]
       3144938496 blocks super 1.2 level 6, 512k chunk, algorithm 2 
[8/8] [UUUUUUUU]
       [======>..............]  resync = 34.3% (179834012/524156416) 
finish=54.3min speed=105637K/sec

and also from sys filesystem:

cat /sys/block/md106/md/degraded
0

(kernel 3.14.19)

Is this normal?
EW

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: raid6 appears not-degraded just after creation
  2014-10-04 20:14 raid6 appears not-degraded just after creation Ethan Wilson
@ 2014-10-05  0:24 ` Anssi Hannula
  0 siblings, 0 replies; 2+ messages in thread
From: Anssi Hannula @ 2014-10-05  0:24 UTC (permalink / raw)
  To: Ethan Wilson, linux-raid

04.10.2014, 23:14, Ethan Wilson kirjoitti:
> MD Raid6 appears not-degraded during initial resync just after creation:
> 
> md106 : active raid6 sdbv1[7] sdbr1[6] sdbq1[5] sdbp1[4] sdbo1[3] 
> sdbn1[2] sdbm1[1] sdbl1[0]
>        3144938496 blocks super 1.2 level 6, 512k chunk, algorithm 2 
> [8/8] [UUUUUUUU]
>        [======>..............]  resync = 34.3% (179834012/524156416) 
> finish=54.3min speed=105637K/sec
> 
> and also from sys filesystem:
> 
> cat /sys/block/md106/md/degraded
> 0
> 
> (kernel 3.14.19)
> 
> Is this normal?

I'd say so.

(Re)syncing does not mean the array is degraded - everything you write
to the new array still has full redundancy immediately.

-- 
Anssi Hannula

^ permalink raw reply	[flat|nested] 2+ messages in thread

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