From: Paul Trepanier (pgt@jax.org)
Date: Wed Sep 10 2003 - 09:35:44 EDT
Thanks to many who responded to this query.
Sun support stated to me there were two variations of power supplies
which shipped with 220/240R's, PN 300-1449-02 and 300-1449-03. The
300-1449-02 version is documented (although not publicily) to be
problematic in causing a system to reboot if power is interrupted to one
of the two power supplies. I should note however that a PS failure, or
pulling a functioning PS out of the front of the system causes no
problem. The -03 variant resolves this.
So if you've set your systems up to use disparate power branches for
redundancy, you may be in for a surprise ;-)
Paul
Paul Trepanier wrote:
> While trying to rework power distribution on some of our Sun systems
> (E22R/E240R), we experienced a system failure (reboot) when
> disconnecting only one (AC-1) of a systems redundant power supplies.
> Before disconnecting the primary power supply, both were powered from
> disparate sources, had green lights and appeared to be 100%.
>
> The secondary power supply (AC-2) was connected to power during this
> entire event.
>
> Any ideas as to why power supply redundancy fails on multiple systems?
>
> Thanks.
>
> Paul Trepanier
> Systems Administrator
_______________________________________________
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 - 23:27:05 EDT