There are not any performance improvements when the TSM Recovery Log or TSM Data Base is put on RAW volumes.
Moving from JFS to RAW (for DB and LOG vols) does in fact help performance somewhat on larger systems. On smaller systems which are not resource constrained, it may in fact make no difference. The code paths for JFS are longer, and you are double buffering for TSM database pages, creating more memory demand.
We run multiple TSM servers on the same box with RAW LVs. We run the TSM servers non-root, and chown the raw LV devices to the appropriate userid for the owning TSM server. This prevents one TSM server from overwriting another's data at a very basic security level.
..Paul
-- Paul Zarnowski Ph: 607-255-4757 719 Rhodes Hall, Cornell University Fx: 607-255-8521 Ithaca, NY 14853-3801 Em: [EMAIL PROTECTED]
