Yes. Unfortunately I can't find the documentation that said how to do this any more. However, one does it by setting run-tapes to some number and tpchanger to chg-multi. Then in the changerfile one specifies a single slot pointing to the tape drive device, firstslot 1 and lastslot 1.
That's indeed about the setup I have. I have two drives configured in chg-multi and I have runtapes set to 3. Two tapes are filled by amanda, and the rest is left in the holdingdisk, which I flush manually on monday morning.
My relevant lines in amanda.conf:
runtapes 3 # number of tapes to be used in a single run of amdump
tpchanger "chg-multi" # the tape-changer glue script
#tapedev "/dev/rmt/2ln" # the no-rewind tape device to be used
#rawtapedev "/dev/null" # the raw device to be used (ftape only)
changerfile "/var/opt/amanda/etc/archive/chg-multi.conf"
#changerdev "/dev/null"
(Notice that some lines, like changedev are indeed commented out!)
And my chg-multi.conf:
multieject 0 firstslot 1 lastslot 2 gravity 0 needeject 0 ejectdelay 0 statefile /var/opt/amanda/archive/changer-status slot 1 /dev/nst0 slot 2 /dev/nst1
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