[SunHELP] Sparc 20 sees new hard drive but won't boot fromit

[Peter Stokes]

Hi Dave

I have come across situations where

1) The drive had some of the SCSI jumpers on and these are OR'd with the
jumpering on the SCA. This can cause confusion on the bus, so remove any
SCSI ID jumpering on the drive itself.

2) On some drives it requires that the 'narrow' jumper be set (if it has
one). I have seen this problem on Fujitsu drives I think.

3) Make sure there is no termination enabled (on SCA there is usually no
option for this, but you may have one that is...)

>From what you are saying you have never been able to see the drive from the
OBP and this is the problem to solve before worrying about the Solaris
issues.

Peter
---------------------------------
Peter Stokes
Ashlyn Computer Services Ltd
Tel: +44 (0)1636-627900
Fax: +44 (0)1636-627909
Mbl: +44 (0)7977-532320
Web: http://www.ashlyn.co.uk
---------------------------------

-----Original Message-----
From: sunhelp-admin at sunhelp.org [mailto:sunhelp-admin at sunhelp.org]On
Behalf Of Dave Lowenstein
Sent: 06 February 2002 01:41
To: sunhelp at sunhelp.org
Subject: RE: [SunHELP] Sparc 20 sees new hard drive but won't boot
fromit


I tried the single ended jumper but didn't try narrow yet. Do you think it
would work at all if the jumpers were set incorrectly though? Like I said,
the drive works just fine as long as it's not the boot disk.


>From: bran tregare <tregare2 at attbi.com>
>Reply-To: sunhelp at sunhelp.org
>To: sunhelp at sunhelp.org
>Subject: RE: [SunHELP] Sparc 20 sees new hard drive but won't boot  fromit
>Date: Tue, 05 Feb 2002 17:31:54 -0800
>
>At 06:57 PM 2/5/02 +0000, you wrote:
>>I've tried probe-scsi and probe-scsi-all. If my old hard drive is in along
>>with the new one, those commands see the old drive and the cdrom. If only
>>the new drive is in, they don't see anything but the cdrom. show-devs
>>doesn't say anything about my disks.
>>
>>the jumpers should have no effect on whether it boots from the drive if
>>the drive works as a second hard drive, right?
>
>is there a SE Jumper?  the Sparc 20 is expecting a Single Ended device,
>U160 is LVD (Low Voltage Differential)  plus IIRC the controller in the
>Sparc 20 is narrow. and U160 devices are by default wide....
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>SunHELP maillist  -  SunHELP at sunhelp.org
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