There are two different flavours of UNIXes: System V and BSD. They differ in many architectural decisions and one of these is the process accounting and -managing.
the only way to get a updated profile active for any partition is to shutdown the partition and activate the updated profile.
you should be running reduntant vio partitions, if you do you can update...
Cleaning tapes are a bit of rough tape that scrape the magnetic tape residue off of the working parts of the drive so if you over use them you will wear out the drive prematurely.
There are a number of configurations and ways to figure out which VIO server is presenting a disk to an LPAR. Hopefully the instructions below will at least point you in the right direction.