Hello,
śr., 12 paź 2022 o 21:37 Robert M. Candey napisał(a):
> I've been using Bacula to back up many servers and desktops to a tape
> library since early on, but always had one server running all of the Bacula
> processes except for the individual file servers.
>
I assume you are familiar with architecture where every Bacula's component
can be separated from each other while maintaining a working network
connection between them.
>
> I'm setting up a new tape library and have new data servers, so I'm
> wondering if there is a more efficient architecture for backing up 1PB,
> mostly stored on one server and NFS-mounted to the other data servers.
>
> Does it make sense to run the PostgreSQL database server and storage
> servers on their own servers dedicated to Bacula?
>
It is always a good practice to separate different workloads for
performance reasons.
> Is there value in running the Director on one or the other?
>
In most cases users run all Bacula components in one server. When
performance scaling is required then Director and Catalog goes to the
separate machine and another Storage machine is added.
> Should I continue to run the storage daemon on the server that hosts the
> large data?
>
It is highly recommended to _NOT_ run Storage daemon on a machine that
hosts data to backup unless you backup to tape storage and you are an
expert which knows exactly what he is doing.
> I'm thinking that the NFS server might be more efficient if run on its
> own, and transfer its data over the network (100GbE) to the Bacula storage
> server attached to the tape library. And perhaps PostgreSQL could have
> dedicated memory and CPU. I don't know what if anything is slowing down our
> backups. Full backups take 4-6 weeks for 500 TB now.
>
If you backup 500TB for about 1,5 month then depending on requirements, you
should optimize your setup ASAP. You can optimize in a dozen different ways.
First (as always) you need to find your bottleneck! The point where all
your backup slows down. It could be a network, CPU, memory, database (when
not using attrib spooling and you backup a massive number of files), data
source, etc, etc. Doing optimization without backup flow analysis is a
waste of time and effort.
best regards
--
Radosław Korzeniewski
rados...@korzeniewski.net
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