Boot fails with data access error (Solaris 10 on SB2500 Red)

[nemo]

Greetings.

| My SB2500 rebooted and failed with the following error.
|
| Rebooting with command: boot
| Boot device: disk:a File and args:
| ERROR: /packages/deblocker: Last Trap: Data Access Error
|Short disk read

The system had been up for a few months before this.
Advice and assistance gratefully and gladly accepted.

Thank you in advance.

Sincerely,
N.

[Cindy Swearingen]

The "Short disk read" error was associated with older SPARC boot PROMs that cannot boot from a root partition larger than 2 GB. Did the size of the root partition change?

[nemo]

Greetings, Cindy.

No -- nothing has changed in years and before this, the box ran for
years without problems. The filesystem is ZFS.

N.

[nemo]

Update: Further to my message below, I simply tried booting off the disc
again. This time, I was told of a memory problem and advised to run
"fmadm faulty". The latter told me the following:

======================================
Fault class : fault.memory.bank 95%
Affects : mem:///unum=DIMM0,DIMM1
faulted but still in service

Description : One or more uncorrectable memory errors occurred.

Response : The system will attempt to remove the affected physical
memory page from service after restart of one or more
services, or the entire system.

Impact : This error may cause either a system panic or restart of
one or more user processes, with resulting interruption in
service.
======================================

So I will replace those two DIMMs and see what happens.

N.