Infrastructure Software

Hi

This has been driving me nuts and I would appreciate some help.

I have a Sun Ultra 10 running Solaris 2.7, it came with a 9.2 Gb Master IDE Hard Disk.
I then installed a 28.5 Gb second hard disk, and configured both jumpers as Cable Select.

Both disks are Seagate IDE Disks.

The OS recognises the full capacity of the disk when running format, and there is no problem partition the disk.
The problem comes then using the disk, this will at a regular interval crash the whole box. with kernel panic, and errors like the following.
May 11 12:50:11 broadside unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@1,0 (dad1):
May 11 12:50:11 broadside disk not responding to selection
May 11 12:50:11 broadside
May 11 12:50:11 broadside unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@0,0 (dad0):
May 11 12:50:11 broadside ATA transport failed: reason 'reset': retrying command
May 11 12:50:11 broadside
May 11 12:50:11 broadside unix: WARNING: interrupt level 4 not serviced
May 11 12:50:11 broadside unix: dad1: disk okay
May 11 15:44:32 broadside unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@1,0 (dad1):
May 11 15:44:32 broadside ID not found
May 11 15:44:32 broadside
May 11 15:44:34 broadside unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@1,0 (dad1):
May 11 15:44:34 broadside disk not responding to selection
May 11 15:44:34 broadside
May 11 15:44:34 broadside unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@0,0 (dad0):
May 11 15:44:34 broadside ATA transport failed: reason 'reset': retrying command
May 11 15:44:34 broadside
May 11 15:44:34 broadside unix: WARNING: interrupt level 4 not serviced
May 11 15:44:34 broadside unix: dad1: disk okay
May 12 00:02:32 broadside unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@1,0 (dad1):
May 12 00:02:32 broadside ID not found
May 12 00:02:32 broadside
May 12 00:02:34 broadside unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@1,0 (dad1):
May 12 00:02:34 broadside disk not responding to selection
May 12 00:02:34 broadside
May 12 00:02:34 broadside unix: WARNING: /pci@1f,0/pci@1,1/ide@3/dad@0,0 (dad0):
May 12 00:02:34 broadside ATA transport failed: reason 'reset': retrying command
May 12 00:02:34 broadside
May 12 00:02:34 broadside unix: WARNING: interrupt level 4 not serviced
May 12 00:02:34 broadside unix: dad1: disk okay

And when running sunvts I get something like this in the error log

SUNWvts.disktest.8112 09/05/01 02:47:00 PM disktest c0t1d0 FATAL: ""failed on aio operation on aio count reached:5,I/O error" Probable_Cause(s): <Cable/Drive/Controller> Recommended_Action(s): <If the problem persists, call your authorized Sun service provider.>
SUNWvts.disktest.8112 11/05/01 12:50:11 PM disktest.1 c0t1d0 FATAL: ""failed on aio operation on aio count reached:5,I/O error" Probable_Cause(s): <Cable/Drive/Controller> Recommended_Action(s): <If the problem persists, call your authorized Sun service provider.>



I have then tried the following.

Configure the jumpers on the disks as MASTER SLAVE ( Same result )
I then made a Cable Select Cable and configured the disks back to Cable Select (Same result)
I then configured the disks back to MASTER SLAVE and using the Cable Select Cable (same result)

I have found some documentation stating that Sun Ultra 10 can only have 20 Gb Disks.

So My question is

Does anyone know of a way to use a 28.5 Gb Disk (or larger the 20 Gb) ?

Is it correct that Sun Ultra 10 can only use up to 20 Gb Disks?

All suggestions are welcome.

Palle