>>> On Thu, Jan 8, 2009 at 10:37 AM, in message <77c4f5c60901080737ka0ee2fbr7f6badc9fc48e4f3 at mail.gmail.com>, Bent Terp <bent at terp.se> wrote: > Hi list! > > While regular backup solutions like amanda or bacula are very good at > their job, ie keeping point2point copies of the files currently on > disk, I find them less suited for archiving - having unused files move > to tape in duplo and stay there until requested. I've even read of > multi-tier solutions - move to slower disks after a week and further > on to tape after a month. > > Does anyone have some experience or suggestions for this? The project > will deal with ~100 TB of growth per year, most files somewhere > between 2 and 50 GB. > > Yes, it can be done with everything in one filesystem, but I'm > concerned about running a full backup every month of 500 TB ;-) Not to > mention the time required for recovery in case the filesys crashes.... > > BR Bent We use SAM-FS to do just that here in the libraries. http://opensolaris.org/os/project/samqfs/What_are_QFS_and_SAM/ It was open sourced last year. Not a simple tool to implement but it does work as advertised. Tony Placilla <aplacilla at jhu.edu> Sr. UNIX Systems Administrator The Sheridan Libraries Johns Hopkins University