Date: Sun, 21 Jun 1998 19:49:49 +0200 From: j@jette.heep.sax.de (J Wunsch) To: freebsd-scsi@FreeBSD.ORG Cc: robert@chalmers.com.au Subject: Re: scsiformat reporting different speed to disklabel Message-ID: <19980621194949.YQ56000@jette.heep.sax.de> In-Reply-To: <357CAD4C.16055D8A@chalmers.com.au>; from Robert Chalmers on Jun 9, 1998 13:34:36 %2B1000 References: <357CAD4C.16055D8A@chalmers.com.au>
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As Robert Chalmers wrote: > using scsiformat -p d sd1 reports a > Medium rotation Rate of 6400. This is supposed to be the correct number. > Is this the rpm: that is reported by disklabel? disklabel only and always defaults to 3600, nothing else, unless you've actually created the label using an entry in /etc/disktab, or at least edited the value with disklabel -e. This value in the disklabel historically has been used for layout-based access optimizations, but this is no longer really applicable for modern disks, so the value's meaningless these days. > Also: on the same thing, reported information, the number of actual > sectors calculated is different to the total sectors reported? The SCSI mode page reports the total amount of blocks. Depending on the actual strategy, you aren't able to use all of them (e.g. due to prehistoric assumptions of fdisk slices being aligned to something like a cylinder boundary). The difference in your case is weirdly large, however. -- bye, J"org ...just travelling around. Don't try reaching me except by mail. :) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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