Question about files only around for sho
Timothy White wrote:
Thanks all who replied to this.
Seeing as I'm just stepping into the world of backups, I wasn't too
sure about this kind of thing.
On 5/9/06, Eric Anderson <anderson < at > centtech.com> wrote:
Tim, I generally consider those transient files, meaning that if they
are only around for a single backup point, then they are probably not
needed long term.
I guess this is a good way to view it.
What I do in practice, is have 60 daily backups online, and 12 weekly
backups, along with 6 monthly. That way, I have 60 days to go back and
grab that transient file, then it's lost. If someone can recall a file
that existed for a single backup point over 2 months ago, I'd be
surprised. My users can barely recall the name of the file, let alone
what *month* it was created in.
Is this with rsnapshot? I thought it renamed the oldest daily to
create the weekly, which would make your weekly 60 days old
Or have you done something funky to it? I would be interested in how
that is setup.
That's correct - my weekly backups are 60 days old. I think of it not
like 'a week ago', but the farther back in time, the less likely it is
that I will need a file from a specific day, so removing 6 of 7 of the
backups is ok, and then even further out I go down to removing the rest
(so only 1 of 30 are left, ie the monthly's). I also have written a
perl script to build a 'restore' directory, that builds a softlink
structure that I can easily navigate by server, filesystem, and time of
backup, to find files, instead of looking at the daily/weekly/monthly
directories.
Eric
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Eric Anderson Sr. Systems Administrator Centaur Technology
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