Re: [Networker] How to run an Incremental from a specific date?
2005-11-17 19:04:03
Let's suppose you did need to delete the last couple of incrementals. If
for some reason you did need to scan the tape(s) to retrieve one or more
of the good incr save sets that you deleted in order to re-run a
previous incremental, how do you specify them if you can't query the
database on them anymore? Just step through the whole tape?
George
Davina Treiber wrote:
Darren Dunham wrote:
Case in point. Let's say I run an incremental on Monday for a
particular group, and another on Tuesday, and for some reason I try
to clone one of the save sets from Tuesday, but the cloning
operation fails because it can't read the save set. If I run another
incremental it will capture all the files since Monday. What I
really want is to capture all the files since Sunday. The only thing
I can think of would be to run a level backup, but this would go all
the way back to the previous lower numbered backup which in our case
would be the previous full. That seems like over kill? Would be nice
if you could tell NetWorker to choose a particular incremental for a
particular date.
Will this work: `save -s server -b pool -g group -l incr -t
mm/dd/yy` if I run that command from the server, and mm/dd/yy is
Sunday's date?
It might, but I'm not sure of all the ramifications. However, you'd run
that from the client, not the server. Also, you'd want to specify the
time down to the second. I think if you just give a date it'll assume
the beginning of the day (00:00:00). Pull the proper one from 'mminfo'.
I wouldn't risk this strategy.
If your bad incremental were the last one run, it's probably easiest to
just delete it from the media database and rerun the incr.
A fine plan, and even if it wasn't the last you could possibly delete
two or three incrementals to take you back to the right point. These
would not be totally lost since you could scanner them back in in an
emergency.
How long do you go with just incrs? I don't go very long because I'm
sure i'll damage or lose a tape someday and I don't want to invalidate a
ton of other tapes when that happens.
I totally agree - I am not happy to depend on more than about a week's
worth. More than that and I would be wanting a new full or to throw in
a level backup. Recovering a whole filesystem from two weeks of
incrementals is a soul-destroying experience.
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