From: Bill Davidsen <davidsen@tmr.com>
To: Janek Kozicki <janek_listy@wp.pl>
Cc: linux-raid@vger.kernel.org
Subject: Re: some non critical problems... (1. mdadm segfault -> write-mostly, 2. smart?)
Date: Sat, 18 Sep 2010 14:01:31 -0400 [thread overview]
Message-ID: <4C94FE7B.1050009@tmr.com> (raw)
In-Reply-To: <20100914151347.3c387cbd@atak.bl.pg.gda.pl>
Janek Kozicki wrote:
> Janek Kozicki said: (by the date of Wed, 8 Sep 2010 11:44:15 +0200)
>
>
>> Umm... to reiterate one of my questions in above email:
>>
>>
>>
>>> md1 : active raid1 sdc1[3](W) sdb1[5](W)
>>> 9767416 blocks super 1.0 [2/2] [UU]
>>> bitmap: 6/150 pages [24KB], 32KB chunk
>>>
>> Is it possible to disable that (W) --write-mostly flag? Does it
>> decrease performance or something, if both devices in the array are
>> set to (W) ?
>>
> this seems to have fixed it:
>
> mdadm --fail /dev/md1 /dev/sdb1
> mdadm --remove /dev/md1 /dev/sdb1
> mdadm --zero-superblock /dev/sdb1
> mdadm --add --readwrite /dev/md1 /dev/sdb1
>
>
>
Sorry for a late question, but in adding this to my notes, I realized I
wasn't clear on why this flag moved to the other partitions. Are you,
and if so can you clarify?
--
Bill Davidsen<davidsen@tmr.com>
"We can't solve today's problems by using the same thinking we
used in creating them." - Einstein
next prev parent reply other threads:[~2010-09-18 18:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-06 12:33 some non critical problems... (1. mdadm segfault -> write-mostly, 2. smart?) Janek Kozicki
2010-09-08 9:44 ` Janek Kozicki
2010-09-14 13:13 ` Janek Kozicki
2010-09-18 18:01 ` Bill Davidsen [this message]
2010-09-20 11:49 ` Janek Kozicki
[not found] <20100906141324.1a19fa4d@atak.bl.pg.gda.pl>
2010-09-06 12:17 ` Janek Kozicki
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