Imaging SCSI hard disks

From: der Mouse <mouse_at_Rodents.Montreal.QC.CA>
Date: Tue Aug 31 19:18:29 2004

> I've a couple of SCSI hard drives (DEC RZ24-S) that I'd like to do a
> complete image of. If I stick them in a linux box and do a dd on
> them, will it copy all the blocks from the device, or am I going to
> get messed around by the PC BIOS INT13

Well, I don't know Linux, but on NetBSD, once booting is done the BIOS
should be completely out of the loop.

I've moved disks between peecees and Suns (whose ROM code speaks SCSI
native and thus doesn't have the C/H/S silliness peecees still haven't
managed to get rid of) with no problems at all.

> on the otherwise LBA device

Um, LBA is an IDE thing, as I understand it, so it doesn't really apply
(though the way SCSI addresses disk blocks is conceptually similar to
what little I understand of LBA: it treats the disk as large
one-dimensional array of blocks, indexed by consecutive integers).

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Received on Tue Aug 31 2004 - 19:18:29 BST