Tape compression

[BADwolf]

Hello, everyone,
We use at one
customers an LTO5 tape backup. Unfortunately, the backup of all orders does not fit on the tape if it is not compressed. About 2.6TB. The backup software that was previously used. was able to take full advantage of compression. Can Veeam be configured here as well? Compression was already activated in the tape backup job, without any significant success - 100mb could be teased out here.

Thanks dir help

[Mildur]

Hi Gabriel

Does your customer write Veeam backup files to the tape?
A Veeam Backup file is already compressed. Tape compression cannot compress the data much more than it was already compressed by the backup job.
You can try a higher compression level on the backup jobs, but that will come at a costs in required cpu resources.
https://helpcenter.veeam.com/docs/backu ... ml?ver=110

If that is no help, consider using object storage instead of tape or sell them a LTO7 tape drive. Use the native size of a tape to design for the right LTO edition.
https://www.ibm.com/docs/en/ts4500-tape ... d-lto-tape

Thanks
Fabian

[BADwolf]

All right, thanks for the reply.
Yes, existing backups are written to the tape.
Then I'll probably write here on 2 tapes.

I took over the jobs 1 to 1 from the old software, so there is no longer any data. I have already set the compression to high in the backup job itself, and also in the tape job, but unfortunately it doesn't fit on one tape.

[Andreas Neufert]

Important point to consider. If you apply compression to compressed data, there is a good chance that you end up in a bigger file than with 1 time compression.