STK 6540 : Is it possible to do a roll back in case of a firmware upgrade failure?

Hello,

I have to upgrade the firmware of a Sun STK 6540. I am wondering if its possible to do a roll back in case the upgrade fails?
Williams225System AdministatorAsked:
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JacobfwCommented:
Upgrading firmware on a Storage Array is always a "do or die" event.

** We always have the tech come in to do this activity.  

As in most cases a uniteruptable power source is recommended to ensure that power is not lost during the firmware upgrade.
We have never had a problem, but it aways scares us.  I have bricked some things in the past and don't take any chances anymore.
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