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
On Thu, Jan 8, 2009 at 10:37 AM, in message
77c4f5c60901080737ka0ee2fbr7f6badc9fc48e4f3@mail.gmail.com, Bent Terp bent@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@jhu.edu Sr. UNIX Systems Administrator The Sheridan Libraries Johns Hopkins University
On Thu, Jan 8, 2009 at 5:08 PM, Tony Placilla aplacil1@jhuadig.admin.jhu.edu wrote:
We use SAM-FS to do just that here in the libraries. http://opensolaris.org/os/project/samqfs/What_are_QFS_and_SAM/
Thanks for the pointer! Do you use SAM with QFS or ZFS? Or some sort of combo?
/Bent
-
Bent Terp -
Bent Terp -
Tony Placilla