From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: RAID6 data-check took almost 2 hours, clicking sounds, system unresponsive Date: Thu, 14 Apr 2011 09:09:07 +1000 Message-ID: <20110414090907.2b32c19b@notabene.brown> References: <724474.42236.qm@web65102.mail.ac2.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <724474.42236.qm@web65102.mail.ac2.yahoo.com> Sender: linux-raid-owner@vger.kernel.org To: Gavin Flower Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Wed, 13 Apr 2011 15:24:17 -0700 (PDT) Gavin Flower wrote: >=20 > --- On Fri, 8/4/11, Gavin Flower wrote: >=20 > > From: Gavin Flower > > Subject: RAID6 data-check took almost 2 hours, clicking sounds, sys= tem unresponsive > [...] > > This morning, I noticed my system was extremely > > unresponsive, and that there were clicking sounds coming > > from one of my 5 hard drives.=A0=20 > [...] >=20 > Hi Neil, >=20 > When I do=20 > badblocks -s -v /dev/sdc > I hear clicking sounds from the hard drive, and notice lots and lots = of log messages such as: > ata3: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0xe frozen > ata3: irq_stat 0x00400000, PHY RDY changed > ata3: SError: { Persist PHYRdyChg 10B8B } > ata3: hard resetting link > ata3: softreset failed (device not ready) > ata3: applying SB600 PMP SRST workaround and retrying > ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 310) > ata3.00: configured for UDMA/33 > ata3: EH complete >=20 > So I assume that the clicking corresponds to the hard reset, but I'm = not certain of that. Initially, I thought it might be some kind of dis= k head problems. Note that smart reports no bad blocks. >=20 >=20 > Regards, > Gavin >=20 This completely out side of my area of expertise. My approach to such issues is to replace bits until the issue goes away= , and the last bit I replaced goes in the bin (after suitable double-checks) = or back to the supplier. NeilBrown -- 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