From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthonys Lists Subject: Re: RAID1 degraded Date: Tue, 04 Aug 2015 15:38:39 +0100 Message-ID: <55C0CE6F.20600@youngman.org.uk> References: <55BFFDD3.5000005@websitemanagers.com.au> <478DB4ED-9FAB-4035-A482-0BC11046B6C2@me.com> <55C0409E.5010004@websitemanagers.com.au> <14A646FC-54F8-4A2E-978D-49800FB534CF@me.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <14A646FC-54F8-4A2E-978D-49800FB534CF@me.com> Sender: linux-raid-owner@vger.kernel.org To: Hans Malissa Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On 04/08/2015 06:55, Hans Malissa wrote: > Thanks a lot for your help! > Rebooting the system didn=92t solve the problem, /dev/sdc is still no= where to be found. > So I will have to replace /dev/sdc. > I tried to learn a bit about SRC/ERC from list archives, and it seems= like my hard drives (1TB Seagate Barracuda=92s) don=92t support this o= ption: > > # smartctl -l scterc /dev/sdb > smartctl 6.0 2012-10-10 r3643 [x86_64-linux-3.7.10-1.45-desktop] (SUS= E RPM) > Copyright (C) 2002-12, Bruce Allen, Christian Franke,www.smartmontool= s.org > > SCT Error Recovery Control command not supported I've got Seagate Barracudas (the 3TB version) and was a bit miffed to=20 realise that they didn't support this. That said, with mirrored 1TB=20 drives, you shouldn't have any real problems with SRC/ERC - the problem= =20 is that a drive that returns 1 error per 10TB read is within spec, if=20 your array is over that size, then "good" drives could well cause a=20 crashed array if you have any glitches. (It seems that most drives are=20 well over spec, but why run the risk). If you're price-conscious, WD Reds are not much more expensive than=20 Barracudas, and are advertised as "good for RAID". I'm looking at them=20 for my next hard drives. Cheers, Wol -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html