Subject: Re: IBM SCSI drives
To: Bob Nestor <email@example.com>
From: Rafal Boni <firstname.lastname@example.org>
Date: 05/02/2002 04:48:39
In message <0A320836-5B06-11D6-93D3-0005025F40E8@augustmail.com>, you write:
-> Is anyone successfully using an IBM DCHS-04F or DGHS-04Z SCSI disk on
-> their NetBSD system? The DCHS-04F is also known as the DCHS-34550 or
-> Ultrastar-2XP. The DGHS-04Z is also known as the Ultrastar-4LP with
-> variations of -04U, -04X, -04Y, -04V, or -04D.
I believe I have one or two of these in my Indigo2, which IRIX or NetBSD,
depending on the day... IIRC, I have the DCHS-4F. I think my R8k Indigo2
may have gotten another one of these, or I may have one floating around
as a spare...
-> I pickup up a couple of these disks recently but can't get them to work
-> correctly. After poking around I found that they have been configured
-> with some non-standard Mode Page defaults including a block size of 514
-> bytes. I've gotten the "scsi" command from FreeBSD/OpenBSD working on
-> NetBSD and can update the Mode Pages but I can't find the right values
-> to use. I've searched all over the IBM Web pages and it appears that
-> these parameters are managed by the VAR/OEM utility called DDD-Si which
-> appears to have the drive tables embedded in the program.
I can't recall if mine had 514 or 520 byte sectors when I got them, but
they were something non-standard.... Since I didn't have a NetBSD disk
on the machine at the time, I used the IRIX `fx' tool to fix the formats.
If you have sources for the SCSI tool, I can see if the Indigo2 still
powers up (I've since got a much nicer and quieter Challenge S 8-)
and if I can get the mode page definitions for you. Please send me
pointers/sources off-list to keep the S/N from dropping even lower
than normal 8-)
Rafal Boni email@example.com
We are all worms. But I do believe I am a glowworm. -- Winston Churchill