7 tapes/1 month

[Nicolae Mihalache]

Hello!

I have a tape changer with 7 tapes and I want to run a dumpcycle of one
month. So only 6 tapes can be used for a full backup resulting an
average of 1 tape/5 days. In the meantime the backup should be holded on
the holding disk so a tape write should happen only when the resulting
data is big  enough to fill a reasonable percent of the tape. How can I
configure amanda to behave in such a way without manual intervention? By
default amanda tries to write a tape each day.

Thanks,
mache