Date: Fri, 14 Jul 2000 01:36:55 -0700 From: Don Lewis <Don.Lewis@tsc.tdk.com> To: Mike Smith <msmith@FreeBSD.ORG>, David Gilbert <dgilbert@velocet.ca> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Dump takes ages on SCSI. (several times faster on IDE) Message-ID: <200007140836.BAA00274@salsa.gv.tsc.tdk.com> In-Reply-To: <200007040158.SAA00532@mass.osd.bsdi.com> References: <200007040158.SAA00532@mass.osd.bsdi.com>
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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
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