We have tsm server 4.2.1 running under solaris 2.8 on a sun 3500. Had plenty of memory (2gb) and a reasonable amount of disk. However, performance even with a gigabit ethernet was less than adequate.
Acting on a couple of replies received from this list, I modified the vfstab and changed the database, log, and stgpool file systems to "forcedirectio". Throughput went up by a factor of five or more for almost all clients. Clients with backups of a few large files, showed an increase of fifteen times throughput. Thought this info might help someone. Gary Lee Senior Operating Systems Analyst Ball State University phone 765-285-1310
