Hi,
I'm using bacula 2.0.3 and I'm having a problem with Bacula recycling
volumes before I want it to. This problem has been ongoing since
version 1.38.something so it's either a very longstanding bug or my
configuration is broken.
What equipment I have to make sure this all works:
A Dell PowerVault 124T tape autochanger. Holds 16 tapes, has a barcode
reader and seems to work perfectly with Bacula.
A scratch pool containing as-yet unpooled tapes. This scratch pool has
never had less than 3 tapes in it. Each day's backup requires 1 tape.
What I want to happen:
Three pools of tapes, Daily, Monthly and Annual. Daily are recycled
once a month, Monthly are recycled once a year and Annually are never
recycled (well, actually they're recycled every 20 years but in the real
world that means never).
I don't want to purge any records for tapes which aren't due for
recycling. As long as the tape itself hasn't been recycled, I want to
be able to restore any file from it without resorting to bscan. I've
worked out how much space this will require database-wise and I'm
confident that won't be a problem.
I've had the tape changer less than a year, so in practise I don't
expect to see any monthly tapes coming up for recycling for a while
yet. Instead, I would expect tapes to be taken from the Scratch pool.
What I see happening:
Daily tapes are recycled as necessary at the end of the month. This is
fine.
Monthly tapes are being recycled after 2 months, and the Scratch pool is
ignored. The backup for 1 April was paused (until I cleared it this
morning) with the message below:
01-Apr 00:05 gemini-sd: Please mount Volume "000028L3" on Storage Device "LTO3"
(/dev/nst0) for Job atlas.2007-04-01_00.05.00
Volume 000028L3 was used on 1 February 2007, so shouldn't be coming up
for recycling until next February.
How things are currently configured:
My current configuration has the same File and Job retention for every
job, regardless of which pool they're going to. The configuration for
each job is:
File Retention = 90 days
Job Retention = 1 month
I'm sure this is wrong, but I'm not sure what it should be. I want
every file and job record purged when the volume itself is up for
recycling and not before.
Pool configurations are:
# Tape pool
Pool {
Name = DailyTape
Pool Type = Backup
Recycle = Yes
AutoPrune = yes
Recycle Current Volume = yes
Volume Retention = 27 days
Volume Use Duration = 23 hours
}
Pool {
Name = MonthlyTape
Pool Type = Backup
Recycle = Yes
AutoPrune = Yes
Volume Retention = 360 days
Recycle Current Volume = No
Volume Use Duration = 23 hours
Storage = Tape
}
Pool {
Name = AnnualTape
Pool Type = Backup
Recycle = No
AutoPrune = No
Storage = Tape
Volume Retention = 20 years
Recycle Current Volume = No
Volume use duration = 23 hours
}
The jobs which write to tape are configured thus:
Schedule {
Name = "WeeklyCycle"
Run = Level=Full Pool=AnnualTape on 1 jan at 00:05
Run = Level=Full Pool=MonthlyTape on 1 feb-dec at 00:05
Run = Level=Full Pool=DailyTape on 2-31 at 00:05
}
Schedule {
Name = "AmericanWeeklyCycle"
Run = Level=Full Pool=AnnualTape on 1 jan at 07:05
Run = Level=Full Pool=MonthlyTape on 1 feb-dec at 07:05
Run = Level=Full Pool=DailyTape on 2-31 at 07:05
}
Schedule {
Name = "WeeklyCycleAfterBackup"
Run = Level=Full Pool=AnnualTape on 1 jan at 07:05
Run = Level=Full Pool=MonthlyTape on 1 feb-dec at 07:05
Run = Level=Full Pool=DailyTape on 2-31 at 07:05
}
--
U4EA Technologies
http://www.u4eatech.com
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