Once a month for system backup is probably fine.
As long as you trust your nightly/weekly backups to SAN and can handle restoring data there's no reason to do weekend tape saves unless you have a doomsday scenario where all systems get wiped out :-)
How much data do you backup nightly and weekly ?
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date: Thu, 24 Apr 2014 14:14:36 -0500
from: Gqcy <gmufasa01@xxxxxxxxx>
subject: comfort level in not performing TAPE backups...
I have re-composed this email several times now...
it kept winding up as a pro - con list...
Our IT shop (mostly windows servers, with a small IBM i) has been
working away from tape for some time.
3 years ago we stopped our nightly IBM i backups to physical tape, and
went to a product that exported save files to SAN. we did physical tape
spins on the weekend...
we are now in a full HA/DR protection scenario, and are progressing to
performing our nightly backups on the DR box, NOT the source box...
I am ok with this...
Now, I am being tasked to stop the weekend tape spins now as well,
except for a "month end" full system save tape to be done on Source system.
I need to ask....
Am I going too far down the trail getting away from tape on the IBM i?