From: brian welsh [mailto:[EMAIL PROTECTED]] >AIX 5.1, TSM 4.2.2.8 en 3494 ATL with 700 volumes (used about >620 volumes), >and about 300 nodes. Three months ago we turned collocation >off because we >have about 200 client-nodes with less then 3 GB's data >stored, and every >node was using min. 1 tape, so we had a lot of tapes with low >utilization, long migration. > >Now tape-utilization is much better, migration is much >faster, but yesterday >there was a restore of an web-server (WinNT) and we restored >almost 2 GB and >it took 6 hours and there were almost 70 tape-mounts.
It all boils down to what is most important. My attitude is that restores are paramount; I would do everything I can (including buying enough library) to minimize restore times, particularly for critical servers. One thing you could do is decrease large-scale restore times is to collocate critical server data by filespace; this allows for easier multi-threaded restores. -- Mark Stapleton ([EMAIL PROTECTED])
