> I'll do backups to disk on a raid6 (28 TB) which is attached via > fibre channel.
I recommend against using a single raid for backups. If the raid controller silently corrupts your raid or there is a file system problem you can easily loose all of your backups. I have seen both happen in my 15 years in the industry. I was not in-charge of the data when either happened and we were not using bacula. > There will be 50 clients with data ranging from a few MB to 100 GB or > more for a full backup, tiny files from mail servers as well as large > database ones. > Speed and reliability are both important (as always). > > The question now is simply what is the best setup? > I do not think there is one simple best setup. > > Should I do one big volume pool or better a few smaller ones? > I think one big pool is easier to manage. > This is a user preference. I have 15 to 20 pools with about the same amount of space and clients but most of these pools are for archival. I only have 2 pools for backup. > > What is the best size for the volumes? My opinion is 5 to 10 GB. But others use much larger volumes. Since you have so much space 100GB would be fine. Remember that recycling is all or none. I mean an entire volume needs to be recycled to reclaim any space from after a job expires. So if you make your volumes too large the recycling may take longer than you think. > 100 GB seems to be reasonable. > > Which file system to have the best transfer rates? xfs? ext4? Either xfs or ext4 are good choices. On the subject of filesystems I do not believe ext3 is a good choice however since it will take minutes to delete a large file like this with xfs and ext4 taking less than 1 second. > xfs could be better here but I am not sure about it. > > I like ubuntu. 10.04.1 LTS or the newer 10.10? > I tend to LTS. > I would go for the newer. John ------------------------------------------------------------------------------ The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book "Blueprint to a Billion" shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
