At 2:57 PM +0200 9/14/00, jakob krabbe wrote:
> >That is what I do. I have a "laptop backup" tape that runs off a
>>backup server from 9:00 to 3:00, then at 3:00 I switch to my nightly
>>backup tape (changes depending on the night, and the week).
>
>Sounds reasonable. I think I'll tune in my server clock to someting similar.
>
>>And yes, if you're backing up everything to one tape, and recycling
>>it, then you are erasing what the server did during the day.
>
>Just checking, reverse is not true? My overnight backup is not overwritten
>during the day...?
It all depends on what type of backup you're doing.
A Normal Backup appends to new data to the tape.
A Recycle Backup erases the tape and starts over.
A New Media Backup makes a new backup set on new media.
[good descriptions are on page 60-61 of the copy of the manual I
have, which I think was 4.2]
>Also, which tape of the week do you save? I have two "monday tapes" that I
>cyckle and I'm planning to increase that to four tapes... I'm still in
>backup-tune-in-mode and I have a feeling mondays are not the best days...??
>
>What day works best for you?
Well, I inherited the backup system from my predecessor, and I will
probably change it if we get our funding grant renewed in December.
What we do currently is this:
Week 1 - Normal backup, Monday through Thursday, on a tape for each
day. On Friday we do a recycle backup that copies everything.
Week 2 - same as Week 1, with a different set of tapes.
Weekends currently do a full server backup to hard drives. This is
one of the things we'll change with the refunding...getting an
autoloader or something to do the server backup/tape change on the
weekends.
We also use a separate tape for laptop backups during the day (as
mentioned earlier).
As it stands right now, we've just made a complete switch to new
tapes for the Monday-Thursday backups, and we started this with new
tapes in March. I should also mention that we only backup a user's
Documents folder, and they are instructed to put anything
work-related that needs to be saved in there. We also do the
bookmarks.html file. Everything else is (mostly) standard for
applications, so if there is a problem, we can restore a user
relatively easily.
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Julia Frizzell
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http://www.theblackroad.org
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