Stan, I basically agree with everything you said. I sometimes forget
how big some peoples backup systems are compared to ours (Spectra 10K, 2
drives, 40 tapes; we use less than 4 full AIT-4 tapes worth of space a
week). When we restore from tapes old enough for Networker to consider
overwriting the tapes are almost never in the library to start with so
it's a simple matter to flip the write protect tab before loading them
which provides that last bit of protection for the paranoid. :) As you
say I do usually remember to set the tapes to read only as well.
Dave
David Werth
Garmin AT, Inc
Salem, Oregon
dave.werth<at>garmin.com
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
Sent: Monday, April 30, 2007 5:57 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Recover/backup priority
On Apr 30, 2007, at 8:50 PM, Werth, Dave wrote:
> When I restoring with tapes that Networker could potentially think
> of as
> candidates for writing I always flip the write lock out tab on the
> tape
> so it is physically impossible to write to it (unless the mechanism in
> the tape drive fails of course ;-)
I find it easier to simply make the tapes as read only in the
NetWorker admin gui or via nsrmm. There are several benefits to doing
this way instead of flipping the right protect tab on the physical
tape medium. First, when you change the tape's write protect tab,
NetWorker does not know anything about it, so it can still attempt to
mount that tape for writing, although it will fail. Second, you have
to go to your tape library, locate the physical tape, then make the
change to the write protect tab. If you mark the tape as read only
from within NetWorker, it will not even bother mounting the tape for
write purposes and when the recover is done, all you need to do is
reverse the command or make the change via the NetWorker Admin GUI
from the comfort of wherever you may be at the time.
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