Re: [Bacula-users] Multiple bacula-sd dameons on same server?

Hello,

2012/5/10 Troy Kocher <tkocher AT mtadistributors DOT com>

Oh wise ones..

Demand on my bacula installation is growing and I need to increase the
amount of simultaneous inbound data. One option that occurred to me was
is it possible to launch multiple daemons on different ports of the same
physical server?

A simple question is: Yes, you can do that.

All the data is written to disk only, no tape.

It doesn't matter, unless you have a sufficient archive devices for multiple SD.

If not any ideas for increasing my inbound capacity here would be really
helpful. Currently I have jobs configured to cancel when they can't run
in their window, to keep things from getting out of control when the job
in line first takes to long.

The main rule for increasing a backup performance of the Storage Daemon is to run multiple backup jobs concurrently. You can even run a hundred backup jobs per single Storage Daemon as long as you have an appropriate number of archive devices. You should read a ScanNet Story about Large Scale Disk-to-Disk backup. There were a very nice blog posts from Henrik Johansen about it, but it is currently unavailable on his website.

He achieved about 600MB/s backup write performance per single Storage Daemon with about 100 concurrent jobs/archive devices. Bacula Storage Daemon is a multithreaded application, so in most cases it is not required to run a multiple sd instances on the same machine, just run a multiple archive devices.

best regards

--
Radosław Korzeniewski
radoslaw AT korzeniewski DOT net

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