> Hi all,
> 
> Just a question in regards to how much space Bacula
> generally uses, when doing backups and restores. 
> 
> On the backup server with the storage daemon and
> director, does Bacula use much in the way of tmp space or
> disk space allocated for archive files?  
> Does spooling cause Bacula to use tmp space or so forth?

Spooling writes the entire data set first to disk in a directory where you 
configure it to spool. If no spooling is in use, it does not use temporary 
space. When using spooling, you can configure the max size of the spool file 
per job. The job will be spooled in chunks of that size, and each chunk will be 
written to tape or other external media you have configured.

> 
> I have a few servers here that don't have much room in
> /var and /tmp, and I am just trying to work out where I
> need to increase the space available on those servers.  

Bacula keeps it's catalog in a persistent storage like a MySQL or PostgrSQL 
database. The size requirements will vary and depends on retention times, count 
of media, and files to backup. My /var/lib/mysql/ibdata1 table space (MySQL 
with InnoDB) seems to be 512MB, but in that database is also a SpamAssassin 
database. Can't say how much bacula takes, but I guess almost all of it. I 
backup only 3 machines, so that is a very small system.



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