Anyone out there with these mid-range storage systems ?

We have a 2 year old 3960 that has exhibited an inability to
reconstruct RAID5 LUNs after a drive replacement. SUN is saying that a
T3+ firmware upgrade (we are currently at 2.1.0 on the T3+ units in
the 3960) solves a problem with reliably detecting/fixing read errors.

The catch is that for the 39xx/69xx the T3+ firmware is released in an
upgrade bundle that includes T3, SAN switch, and management processor
(msp) software that is unavailable to customers for download. Support
has told me its an SE support function to upgrade all this firmware. I
have also been told that my platinum support contract doesn't cover
it. I would like to keep this system a "3960" and not begin to
upgrading individual components seperately.

Have you ever done one of these msp upgrades ? Do you do them
regularly ? Does SUN do them for you ?

I would like to hear your experiences. We are at msp version 2.1.1.
SUN wants us to go to 2.3.3.

thanks.....