From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wols Lists Subject: Re: component device mismatches found Date: Sun, 19 Mar 2017 10:21:45 +0000 Message-ID: <58CE5BB9.3090908@youngman.org.uk> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Gandalf Corvotempesta , linux-raid@vger.kernel.org List-Id: linux-raid.ids On 19/03/17 10:00, Gandalf Corvotempesta wrote: > I've seen this in my log: > > Mar 19 00:57:01 x /USR/SBIN/CRON[17832]: (root) CMD (if [ -x > /usr/share/mdadm/checkarray ]; then /usr/share/mdadm/checkarray --cron > --all --idle --quiet; fi) > Mar 19 00:57:01 x mdadm[1576]: RebuildStarted event detected on md > device /dev/md/0 > Mar 19 01:30:21 x mdadm[1576]: Rebuild24 event detected on md device /dev/md/0 > Mar 19 02:03:41 x mdadm[1576]: Rebuild47 event detected on md device /dev/md/0 > Mar 19 02:37:02 x mdadm[1576]: Rebuild68 event detected on md device /dev/md/0 > Mar 19 03:10:22 x mdadm[1576]: Rebuild87 event detected on md device /dev/md/0 > Mar 19 03:38:00 x mdadm[1576]: RebuildFinished event detected on md > device /dev/md/0, component device mismatches found: 4608 > > This is a 3way mirror. > > I've tought that swap was the culpit, but swap isn't used: > > # free -m > total used free shared buffers cached > Mem: 32230 31844 386 0 1679 26026 > -/+ buffers/cache: 4137 28092 > Swap: 8191 0 8191 > > and IIRC, linux never clean the swap usage up to 0. > > Are my data safe ? Is something to be worried about ? mdadm --detail /dev/md/0 I think we need a bit more info - it's not ringing any alarm bells for me, but I'm not an expert. Cheers, Wol