As most companies do, mine uses co-lo's to deal with the power, cooling, network, storage and other logistics. Recently, we needed some storage and the co-lo said that we could only run the qlogic's driver from Solaris 10U5. I was like Whiskey-Tango-Foxtrot? Are you kidding me? You haven't updated your support matrix in 3 years? I was blown away.
Fortunately, after a fair amount of hang wringing and arguing, we finally got them to agree to a more recent version, and only required a backout of a single patch. I do love Live Upgrade with ZFS root. create BE, remove patch, run pca (Patch Check Advanced) against the ABE to verify that the right patch version will be activated, activate the ABE and reboot. Firedrill averted.
