I have to configure the following setup and would like to hear your recommendations or thoughts:
amanda-3.3.9 on a small but solid server, dumping backups to a single HP-DAT-160 tape drive. Yes, old/small/slow. So the customer asked if we could play it cheap and buy 2 external USB-disks (2 TB size each) and somehow spread the backups over tapes and disks. The initial thought was that there should be disk1 attached to the server in uneven weeks (1,3,5, ...) and disk2 in even weeks (2,4,6, ...) and the "cold" disk be taken offsite in the meantime. The people there know *nothing* of amanda, so the setup has to be as stupid as possible ;-) Which means I have to think and plan more. I think of setting up udev rules to detect which of the 2 disks is attached, and then running vtapes on both of them. Now comes the part where my expertise is limited: I would prefer to have one single amanda config around the 2 usb-disks, maybe even managing the tapes as well. Would RAIT make sense here? Should I amvault dumps from here to there? How to deal with vtapes "not attached"? I think some of you have already set up similar configs so I ask for some feedback on how to start that and what to consider and avoid. Looking forward, thanks, Stefan
