From owner-freebsd-fs Fri Nov 19 7:18: 2 1999 Delivered-To: freebsd-fs@freebsd.org Received: from mojave.sitaranetworks.com (mojave.sitaranetworks.com [199.103.141.157]) by hub.freebsd.org (Postfix) with ESMTP id 2E1081563C for ; Fri, 19 Nov 1999 07:17:59 -0800 (PST) (envelope-from grog@mojave.sitaranetworks.com) Message-ID: <19991119101720.35872@mojave.sitaranetworks.com> Date: Fri, 19 Nov 1999 10:17:20 -0500 From: Greg Lehey To: Simon Shapiro , Bernd Walter Cc: Mattias Pantzare , freebsd-fs@FreeBSD.ORG Subject: Re: RAID-5 and failure Reply-To: Greg Lehey References: <199911061716.SAA20783@zed.ludd.luth.se> <19991106183316.A9420@cicely7.cicely.de> <3834D45C.1F963B3B@simon-shapiro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <3834D45C.1F963B3B@simon-shapiro.org>; from Simon Shapiro on Thu, Nov 18, 1999 at 11:38:52PM -0500 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Thursday, 18 November 1999 at 23:38:52 -0500, Simon Shapiro wrote: > Bernd Walter wrote: >> >> I asume that's the reason why some systems use 520 byte sectors - maybe they >> write timestamps or generationnumbers in a single write within the sector. > > 528. 512 data, 16 ECC for the sector. Nothing to do with RAID. There are various sizes. I've had surplus disks with 516 and 520 byte sectors. But yes, they're usually under hardware control. Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message