I give you Wanda's favorite answer, "It depends."
Concepts:
* Primary storage is the repository where you keep data for normal
backup/archive and restore/retrieve.
You can have a disk only primary storage. You CAN have all disk storage.
There are lots of discussions on ADSM-L about it
* Some env
Hi, I am planing upgrade of my TSM infrastructure.
For now I have Server IBM x3650 M3
with 6x SATA
RAID 1 (2 disk) (2 partition C,D) include TSM SERVER, Operation Server, on C,
and DB + LOGS on D drive
RAID 5 (4 disk) (1 partition) for primary stgpools (about 2,8TB)
Got also Tape Library 3100 wi