From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Freemyer Subject: Re: RAID halting Date: Sat, 4 Apr 2009 20:49:36 -0400 Message-ID: <87f94c370904041749j318b577dr663ef0bd3b4ad717@mail.gmail.com> References: <49D7C19C.2050308@gmail.com> <20090405000728.GGPW19140.cdptpa-omta03.mail.rr.com@Leslie> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20090405000728.GGPW19140.cdptpa-omta03.mail.rr.com@Leslie> Sender: linux-raid-owner@vger.kernel.org To: lrhorer@satx.rr.com Cc: Linux RAID List-Id: linux-raid.ids >=A0Also, it doesn't take a drive 40 seconds, > let alone 2 minutes, to mark a sector bad. Just for info, with Enterprise class sata drives, you're right. =46or consumer grade sata, they have extended auto retry logic as an effort not to fail a read from a bad sector. It can easily take times like your seeing. I think the standard drive timeout is on the order of 30 seconds and then libata sometimes has retry logic of its own. Especially with PATA drives a 2 minute issue is not out of the question, since the kernel will step down the i/o speed and retry each speed as it goes. And PATA (IDE) has a lot of speeds to try. Greg --=20 Greg Freemyer Head of EDD Tape Extraction and Processing team Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer =46irst 99 Days Litigation White Paper - http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.p= df The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- 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