V445 boot

From: Sean Walmsley (sean@fpp.nuclearsafetysolutions.com)
Date: Wed Aug 08 2007 - 13:52:24 EDT


We have a new V445 server running Solaris 10 6/2006 which we've
had to reboot a number of times to debug an application issue.

Can anyone tell me why this machine pauses for about 4 minutes
before the OS even appears to start loading? A typical boot
sequence looks like:

[OPENBOOT BANNER]
Rebooting with command: boot

~ 20 second pause

Boot device: /<...path...> File and args:

~ 4 minute pause

after 4 minutes the little propeller spins for a few seconds,
then we see:
SunOS Release 5.10....

and the machine boots up to the dtlogin prompt in under a minute.

As advertised, Solaris 10 boots up very quickly, it's just that
the delay prior to booting seems interminable.

Can anyone tell me what the machine is doing during this 4 minute
period of seeming inactivity? I've tried a "boot -v", and even
putting "set moddebug=0x80000000" in /etc/system to instrument
the boot sequence, but both of these cause extra output only
after the "SunOS Release 5.10" line.

I'm guessing that this delay is due to some kind of Openboot
probing of devices, but 4 minutes seems excessive for a machine
with 2 CPUs and only 8 internal SAS disks attached.

Is there anyway I can shorten this delay temporarily until we
get the machine into production?

Thanks for any assistance you can provide.

=================================================================
Sean Walmsley sean@fpp.nuclearsafetysolutions.com
Nuclear Safety Solutions Ltd. 416-592-4608 (V) 416-592-5528 (F)
700 University Ave M/S H04 J19, Toronto, Ontario, M5G 1X6, CANADA
_______________________________________________
sunmanagers mailing list
sunmanagers@sunmanagers.org
http://www.sunmanagers.org/mailman/listinfo/sunmanagers



This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 23:42:11 EDT