On Saturday 10 July 2004 11:46, Michael D Schleif wrote: >OK, we have a Quantum SuperDLT1 tape drive, and an Overland LXB >autoloader, with ten (10) slot magazine and barcode reader. One > slot is the cleaning tape, which is controlled by the autoloader, > and not by the Amanda changer. Backups are to be performed seven > (7) days per week. > >Amanda is backing up as expected, and tapes are being selected and >loaded without a hitch. This is a recent setup, and DLE's are being >configured and added every couple of days. So far, everything can > fit on one tape, even assuming level 0 on each DLE. As this > environment grows, that will not be the case. > >Normally, Amanda's logic loves a large number of tapes. My office > LAN, manually changed, uses eighteen (18) DDS3 tapes. I have > followed this setup carefully for more than one year, and even as I > add DLE's, Amanda manages to get everything necessary on one tape > per backup. All is good. > >With this current setup, nine (9) usable tapes, I wonder how best to >configure Amanda? Yes, we can manually swap out magazines as > necessary; but, we prefer that this site run as automagically as > possible. To wit, one magazine and nine tapes -- period. > >How do you setup similar environments? What happens if a tape is, > of a sudden, bad when you need to restore? > >What do you think?
If it was me, I'd probably get another magazine, put 7 tapes and a cleaner in each, and have cron send you a reminder email to change the magazine before you do anything else monday mornings. That would take a dumpcycle=7, runspercycle=7, tapecycle=14. Or goto dumpcycle=4,runspercycle=4,and tapecycle=9 and run it every night and wear those tapes out in a hurry. But I'm not you, and atm don't even have amanda running, I've gotta see if I can make it use dvd-+-rw's one of these days. My last DDS2 changer's head died a week or so back. -- Cheers, Gene There are 4 boxes to be used in defense of liberty. Soap, ballot, jury, and ammo. Please use in that order, starting now. -Ed Howdershelt, Author Additions to this message made by Gene Heskett are Copyright 2004, Maurice E. Heskett, all rights reserved.