[Veritas-bu] Tuning Solaris 10 for NetBackup Media Server
ewilts at ewilts.org
Wed Jun 13 18:20:20 CDT 2007
> 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:ewilts at ewilts.org
I GoodSearch for Bundles Of Love:
More information about the Veritas-bu