Installed 6.5 sp5 on a IBM X3500 server, with 8K raid controller, only notice when installing SP7 all the volumes where de-activated, the server showed a beasttree error at a particular block. My guess is that the raid controller or driver produced this error when the Raid card or drives where taxed during the service pack install or the original install. Upon a poolverify of sys it showed some missing names in tree entries and when doing a poolrepair it showed an error of 8 files and if you continue they will be deleted. During the service pack install the first sign of this error is when spupdate could not load.
I did notice that the installer (a Person) has got all the interrupts on 9 in the bios. Has anybody seen this problem, what do you think it could be.