From owner-freebsd-stable Fri Jul 14 1:37: 8 2000 Delivered-To: freebsd-stable@freebsd.org Received: from gatekeeper.tsc.tdk.com (gatekeeper.tsc.tdk.com [207.113.159.21]) by hub.freebsd.org (Postfix) with ESMTP id 3998437B531; Fri, 14 Jul 2000 01:37:06 -0700 (PDT) (envelope-from gdonl@tsc.tdk.com) Received: from imap.gv.tsc.tdk.com (imap.gv.tsc.tdk.com [192.168.241.198]) by gatekeeper.tsc.tdk.com (8.8.8/8.8.8) with ESMTP id BAA17431; Fri, 14 Jul 2000 01:37:01 -0700 (PDT) (envelope-from gdonl@tsc.tdk.com) Received: from salsa.gv.tsc.tdk.com (salsa.gv.tsc.tdk.com [192.168.241.194]) by imap.gv.tsc.tdk.com (8.9.3/8.9.3) with ESMTP id BAA63422; Fri, 14 Jul 2000 01:37:00 -0700 (PDT) (envelope-from Don.Lewis@tsc.tdk.com) Received: (from gdonl@localhost) by salsa.gv.tsc.tdk.com (8.8.5/8.8.5) id BAA00274; Fri, 14 Jul 2000 01:36:55 -0700 (PDT) From: Don Lewis Message-Id: <200007140836.BAA00274@salsa.gv.tsc.tdk.com> Date: Fri, 14 Jul 2000 01:36:55 -0700 In-Reply-To: <200007040158.SAA00532@mass.osd.bsdi.com> References: <200007040158.SAA00532@mass.osd.bsdi.com> X-Mailer: Mail User's Shell (7.2.6 beta(5) 10/07/98) To: Mike Smith , David Gilbert Subject: Re: Dump takes ages on SCSI. (several times faster on IDE) Cc: freebsd-stable@FreeBSD.ORG Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Jul 3, 6:58pm, Mike Smith wrote: } Subject: Re: Dump takes ages on SCSI. (several times faster on IDE) } IDE disks typically default to write-cache enabled (the drive returns the } command as complete as soon as it's given to the drive), while SCSI disks } default to write-cache disabled (the drive doesn't return the command as } complete until it's hit the media). All the SCSI disks I've seen in the last few years have been shipped from the factory with write-caching enabled. I have to remember to disable it when installing new disks. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message