Is there any chance this IBM disk came out of some type of hardware RAID
array? I have a Quantum drive that came from an array that has custom
firmware on it. One of the side effects is that I cannot enable write
cacheing on the drive, which makes it horribly slow even when running at
40MB/sec transfer speed. (It's an Ultra 160 drive)

Is the drive set to wait spin until it gets a start motor command?
It's very strange that it won't probe the geometry. Hopefully it's a
jumper issue and not a firmware or SCSI quirk issue :/ Maybe try it
without wait spin once and see if it does the same thing.

On Mon, 25 Oct 2004, Riccardo Mottola wrote:

> Hey:
>
> Even with a normal kernel I find this:
>
> scsibus0: waiting 2 seconds for devices to settle...
> scsibus1: waiting 2 seconds for devices to settle...
> sd0 at scsibus1 target 0 lun 0: <QUANTUM, FIREBALL SE4.3S, PJ0A> disk
> fixed
> sd0: 4110 MB, 7637 cyl, 4 head, 275 sec, 512 bytes/sect x 8418816
> sectors
> probe(mesh0:0:1:0): max sync rate 10.00Mb/s
> sd1 at scsibus1 target 1 lun 0: <IBM OEM, DFHSS4F, 4141> disk fixed
> sd1: drive offline
> cd0 at scsibus1 target 3 lun 0: <MATSHITA, CD-ROM CR-8005A, 4.0i> cdrom
> removable
> boot device: sd1
> root on sd1a dumps on sd1b
> root file system type: ffs
>
> as it says root device is on sd1 how can it says it is offline? it just
> got the kernel off it ! (sd0 is mac only...)
> Chris Tribo wrote:
>
> >         You might try boot -a from open firmware, then boot the kernel
> > with the -v flag from ofwboot.xcf to enable verbosity. Might give some
> > more clues without compiling a debug/diagnostic/mesh_debug kernel.
>
> hmm, I'm lost there. "-a" where ?
>
> I tried the procedure I would do on sun's: stop at open-firmware with
> alt-cmd-o-f and then type "boot -v" but it did not increase verbosity
> level. COuld you give me instruction for the beginner?
>
> AH also, I can test some kernels if someone provides me. I do not have
> sources on my HD yet. But as things are it is probbaly better to get
> some so I can try out the various patches from Michael...
>
> -R
>

-- 
The nice thing about Windows is - It does not just crash, it displays a
dialog box and lets you press 'OK' first.
						-- Arno Schaefer