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From: Wolfgang Denk <wd@denx.de>
To: Phil Turmel <philip@turmel.org>
Cc: Mark Knecht <markknecht@gmail.com>,
	Linux-RAID <linux-raid@vger.kernel.org>
Subject: Re: High mismatch count on root device - how to best handle?
Date: Thu, 28 Apr 2011 07:31:23 +0200	[thread overview]
Message-ID: <20110428053123.B031BD52709@gemini.denx.de> (raw)
In-Reply-To: <4DB8BEFE.3020009@turmel.org>

Dear Phil Turmel,

In message <4DB8BEFE.3020009@turmel.org> you wrote:
> 
> Hmmm.  Since its not swap, this would make me worry about the hardware.  Have you considered shuffling SATA port assignments to see if a pattern shows up?  Also consider moving some of the drive power load to another PS.

I do not think this is hardware related.  I see this behaviour on at
least 5 different machines which show no other problems except for the
mismatch count in the RAID 1 partitins that hold the /boot partition.

> > Still, if I haven't a clue which drive is causing the mismatch then I
> > cannot know which one to pull..
> 
> This is really a file system problem, and effort are underway to solve it.  Btrfs in particular, although it is still experimental.  I'm looking forward to that status changing.

It will probably take some time until grub can boot from a RAID1 array
with btrfs on it...

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Q:  What's a light-year?
A:  One-third less calories than a regular year.

  reply	other threads:[~2011-04-28  5:31 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-25 22:32 High mismatch count on root device - how to best handle? Mark Knecht
2011-04-26  1:30 ` Mark Knecht
2011-04-26 17:22   ` Mark Knecht
2011-04-26 19:38     ` Phil Turmel
2011-04-28  0:38       ` Mark Knecht
2011-04-28  1:12         ` Phil Turmel
2011-04-28  5:31           ` Wolfgang Denk [this message]
2011-04-30 22:51             ` Mark Knecht
2011-05-01 14:50               ` Brad Campbell
2011-05-01 17:13                 ` Mark Knecht

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