From: Lorraine Baran (lebaran@cloud9.net)
Date: Sun Feb 01 2004 - 04:25:57 EST
Thanks to everyone who came to my rescue in this crisis.
Updating the firmware would have been the fix for this problem. But, at
the time it seemed illogical, because
we had already replaced the IB boards several times. And I knew that
our firmware was up to date at 1.09.
Here's briefly what happened. We changed every single part in the
A5200. Unfortunately, we kept burning up boards
and gbics as we went along.
Finally, we change the center plane. Here's the key. The firmware on
the A5200 is kept on ROM on the
center plane. When the power is turned on, the center plane down loads
the firmware to the back planes.
We had corrupted the firmware. Apparently the backup copy of the
firmware was being downloaded to the
back planes. So in another life, this array was a 14 slot array.
So now we are back in business. The only parts that were not changed on
the array were the metal casing and
the screws.
Lesson learned:
1. The firmware resides on the center plane.
2. The only difference between a 14 slot array and a 22 slot array
is the firmware and
the back planes.
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