Hi all,
I'm very happy with Bacula so far. I've got a bunch of clients setup and
have a basic config ready to go. So far backing up to disk is working
well and I need to figure out how to implement my real schedule and tape
usage now. I'm coming from Amanda, so it's taking me a bit of time to
digest the manual.
What I'd like to do is the following:
-Full backup each sunday, keeping the tapes for a year. After that I
would likely manually relabel all the tapes but one. These tapes would
all be in one pool.
-Differential backup each following sunday, with 3 tapes that get recycled
each month. These tapes are also in their own pool.
-Incrementals mon-fri, with 5 tapes that get recycled each week. Again,
in their own pool.
Does this seem like a sane plan? I'm on the fence about the differentials
as we very rarely go back to backups for anything... I'm also wondering
how these choices will impact the general ease of restoring something if
we need to. Again, I'm coming from Amanda, and there's not much thinking
there. When you restore, you just keep feeding it the tapes it wants.
Here's what I've tentatively got in my bacula-dir config.
pools:
Pool {
Name = Monthly
Pool Type = Backup
Recycle = no # Bacula can automatically recycle
Volumes
AutoPrune = yes # Prune expired volumes
Volume Retention = 365 days # one year
Volume Use Duration = 23h
Maximum Volumes = 12
LabelFormat = "Monthly"
}
Pool {
Name = Weekly
Pool Type = Backup
Recycle = yes # Bacula can automatically recycle
Volumes
Recycle Oldest Volume = yes
AutoPrune = yes # Prune expired volumes
Volume Retention = 1 month # one month
Volume Use Duration = 6 days
Maximum Volumes = 3
LabelFormat = "Weekly"
}
Pool {
Name = Daily
Pool Type = Backup
Recycle = yes # Bacula can automatically recycle
Volumes
Recycle Oldest Volume = yes
AutoPrune = yes # Prune expired volumes
Volume Retention = 5 days # 5 days
Volume Use Duration = 23h
Maximum Volumes = 5
LabelFormat = "Daily"
}
I'm hoping what I've got there will force me to put a new tape in for each
run ("Volume Use Duration"). Am I on the right track with this or not?
Would it be simpler to let the incrementals all go to one tape and reduce
this to four tapes/month for those? I'm using 100GB LTO-2 tapes, so I
certainly have more than enough room, but I suppose I open myself up to
problems if a tape fails...
Does the above config look fairly sane?
Thanks,
Charles
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