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From: Corey Hickey <bugfood-ml@fatooh.org>
To: Michael Makuch <linuxraid@makuch.org>
Cc: linux-raid@vger.kernel.org
Subject: Re: Few questions
Date: Fri, 07 Dec 2007 19:22:45 -0800	[thread overview]
Message-ID: <475A0E05.6010904@fatooh.org> (raw)
In-Reply-To: <4759E13F.7000308@makuch.org>

Michael Makuch wrote:
> I realize this is the developers list and though I am a developer I'm 
> not a developer
> of linux raid, but I can find no other source of answers to these questions:

Don't worry; it's a user list too.

> $ cat /proc/mdstat
> Personalities : [raid6] [raid5] [raid4]
> md0 : active raid5 etherd/e0.0[0] etherd/e0.2[9](S) etherd/e0.9[8] 
> etherd/e0.8[7] etherd/e0.7[6] etherd/e0.6[5] etherd/e0.5[4] 
> etherd/e0.4[3] etherd/e0.3[2] etherd/e0.1[1]
>       3907091968 blocks level 5, 64k chunk, algorithm 2 [9/9] [UUUUUUUUU]
>       [============>........]  resync = 64.5% (315458352/488386496) 
> finish=2228.0min speed=1292K/sec
> unused devices: <none>
> 
> and I have no idea where the raid6 came from.

As far as I understand, the "Personalities" line just shows what RAID
capabilities are compiled into the kernel (and loaded, if modules). For
example, even though I'm only using raid0, I have:

-----------------------------------------------------------------
$ cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md0 : active raid0 sdc[0] sdb[1]
      976772992 blocks 64k chunks

unused devices: <none>
-----------------------------------------------------------------

-Corey

  parent reply	other threads:[~2007-12-08  3:22 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-08  0:11 Few questions Michael Makuch
2007-12-08  3:17 ` Guy Watkins
2007-12-08 12:03   ` David Greaves
2007-12-09  4:17   ` Michael Makuch
2007-12-08  3:22 ` Corey Hickey [this message]
2007-12-08 17:15 ` /proc/mdstat docs (was Re: Few questions) David Greaves
2007-12-08 19:27   ` Raz
2007-12-09  4:11   ` Michael Makuch

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