31.10.2009 2:19, Leslie Rhorer kirjoitti: >> Amount of Volumes is mostly about recycling. When Bacula recycles (frees >> old media to a new backup) it does so on volume basis. If it needs to >> wrote a volume again, it empties the whole volume, and starts writing >> again. >> >> If it's ok to flush a whopping 1TB-3TB at once, one volume per media >> might be OK. But smaller files (volumes) keep old data longer on the >> disk, at Bacula automatically manages the files (volumes), no matter how >> many of them are there. > > I think I am starting to see the potential strategies emerging. > Since the vast bulk of the files are videos, perhaps one volume per drive > until the entire full backup is complete, and then some number of smaller > volumes on the last drive. As I said, the data on this array is highly > static. The only files which change regularly are Quicken finance files and > the e-mails in my IMAP server. We're talking less than 20M of data, here. > Other than that, for the most part the only changes on the array are when I > download a new application. >
There is more. Bacula has a concept of Pool. A Pool contains one or more volumes, and a Job is using a Pool. You might want to dedicate separate Pools to those two kinds of files, and maybe create separate Jobs for those files. Make small Volumes for those small, often changing files, and large Volumes for rarely changing video material. There will be head scratching, Bacula certainly is more complex than rsync ;) (Please, keep the discussion on list) -- http://www.iki.fi/jarif/
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