Calculating Catalog- Files for Tape Archiving System

[Birgit Ducarroz]

Hi,
I wonder how I might calculate the Nbr of Catalog-xxx files for the following scenario:

Supposing I have a total of

- 20 Tapes à 6 TB where I would archive data during 10 years, archiving from time to time, when it is necessary.

 plus

- 20 Tapes à 6 TB where I would archive date during 2 years, then recycle.

The Catalog -xxx filesize is 500 mb

I don't want my stockage to grow to infinity, I want Bareos to do the autopruning and recycling itself. But for my archiving I should therefore know what information is useful for the volume-, job- and fileretention and maybe also for the nbr of "Maximum Volumes".

Here is my actual Catalog.conf

Pool {
Name = Catalog
Pool Type = Backup
Recycle = yes
Maximum Volume Bytes = 500 G
Maximum Volumes = 9999
Label Format = "Catalog-"
AutoPrune = yes
Volume Retention = 1095 days
Job Retention = 1094 days
File Retention = 1093 days
}

Any hint is appreciated.

Thank you very much!

Regards,
Birgit

[Philipp Storz]

Hello Birgit,

it all depends mostly on how many files you have in your backups, not how much data you have in
total. The File table is by far the biggest part of the database.

Probably you find some info for your calculations on this page:

https://docs.bareos.org/Appendix/HardwareSizing.html#hardware-sizing

I hope this helps,best regards!

Am 12.01.24 um 14:51 schrieb 'Birgit Ducarroz' via bareos-users:

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Philipp Storz philip...@bareos.com
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