On Thu, Mar 30, 2006 at 09:11:17PM -0500, stan wrote: > On Thu, Mar 30, 2006 at 05:55:02PM -0600, Salvatore Enrico Indiogine wrote: > > I am trying to set up an amanda b/u system here at Texas A&M. This > > would be the first time for me. > > > > I has been suggested to me to use a daily b/u to disk and then weekly > > flush to tape. We have a 8-slot Quantum tape drive. > > > Do you really need teh complexity of doing both virtual tapes, and > physical tapes? The only real advantage is in speed of recovery, > and, if you work at it hard enough, being able to recover, while a > backup is running. > > Sounds like your hardware is better suited to a "classic" Amanda > set up to me.
I had a similar thought. You say your available hard disk space is not sufficient to hold a full set of level 0 dumps. I think you said that was 600GB and you had only 400GB of disk. In that situation, even if you spread out the dumps with incrementals and full dumps you could not hold a single dumpcycle's worth of dumps on the hard disk. Assuming you had a 7 day dumpcycle, you might be able to save 3 - 4 days worth of dumps on disk. And many incrementals would be of less value because their level 0 starting points were already deleted. I suspect you would be better off using that 400GB disk for holding disk space and saving your dumps to tape. What capacity is your tape? I would suggest that when you start your production configuration you ease into the disklist entries (DLEs). If you have several hosts, each with several DLEs, enter all the DLEs into your disklist file, but comment them out with "#"s. Then before each days' run of amdump, uncomment one or two DLEs from each host. -- Jon H. LaBadie [EMAIL PROTECTED] JG Computing 4455 Province Line Road (609) 252-0159 Princeton, NJ 08540-4322 (609) 683-7220 (fax)
