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? -- Best Regards, mds mds resource 877.596.8237 - Dare to fix things before they break . . . - Our capacity for understanding is inversely proportional to how much we think we know. The more I know, the more I know I don't know . . . --
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