> Our numbers vary greatly according to the clients. We have very old > Solaris machines that backup at 50+ MB/sec. We have very new Windows > machines where throughput varies greatly between different volumes on > the same machine (e.g. a volume with 5 million tiny files backs up at > 30 MB/sec via FlashBackup, while another volume on the same machine > gets about 7 MB/sec backing up small files via FlashBackup). > > It's difficult to get good numbers because we use multi-streaming and > multiplexing like crazy. So the actual throughput to the drive is the > sum of the jobs using the drive at that moment. Individual jobs vary > between 5 MB/sec and about 65 MB/sec. But the total throughput to the > tape heads is unknown. > > Anyone know an easy way to calculate that?
If your drives are fibre-attached, use something like MRTG to grab the fibre port stats and graph that. That gives us a pretty good idea as to what the tape speeds are. -- Ed Wilts, Mounds View, MN, USA mailto:[EMAIL PROTECTED] I GoodSearch for Bundles Of Love: http://www.goodsearch.com/?charityid=821118 _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu