From: Roman Mamedov <rm@romanrm.net>
To: tlknv <tlknv@yandex.ru>
Cc: NeilBrown <neilb@suse.com>,
"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>
Subject: Re: mismatch_cnt constantly goes up on ssd+hdd raid1
Date: Thu, 25 Jun 2015 20:50:26 +0500 [thread overview]
Message-ID: <20150625205026.42f41a81@natsu> (raw)
In-Reply-To: <2762371435246396@web9o.yandex.ru>
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On Thu, 25 Jun 2015 18:33:16 +0300
tlknv <tlknv@yandex.ru> wrote:
> I have just discovered that I had 'discard' mount option even though I though it wasn't there :-(
> After removing 'discard' and forcing 'repair' mismatch_cnt stays 0 even after a bunch of writes and deletes (the most importantly) to the partition.
I wouldn't recommend disabling discard 'for good' though, from your experiment
we can probably conclude the mismatch_cnt numbers you had previously are indeed
harmless. If you had no other issues due to discard being active, then what you
did now is disable a working and useful feature to fix what's only a cosmetic
problem.
--
With respect,
Roman
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next prev parent reply other threads:[~2015-06-25 15:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-14 17:13 mismatch_cnt constantly goes up on ssd+hdd raid1 tlknv
2015-06-25 1:33 ` NeilBrown
2015-06-25 5:19 ` Roman Mamedov
2015-06-25 5:30 ` Brad Campbell
2015-06-25 7:25 ` NeilBrown
2015-06-25 15:33 ` tlknv
2015-06-25 15:50 ` Roman Mamedov [this message]
2015-06-25 17:24 ` Boris T
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