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Tape backup - Full backup too small

Thread needs solution

Hi,
my situation:
1 Host Hyper-V
1 VM with 1 VHD with agent installed
1 VM with 1 VHD + 1 Passthrough disk with agent installed (passthrough disk backed up separately)

Data size: approx: 100 GB
Updated to latest release.

Backup on Tape LTO 800GB, 5 days Differential, 1 day Full backup

When the full backup starts, all seems ok, it completes with no errors, but the backup job is done in 15 minutes and in the tape where written about 15GB

Changing tape where we do full backup, same situation
Running manual full backup, same situation
All logs with no errors

If we browse the vault, it seems that the data is in the tapes, but the size of backup it's impossibile!

This problem has started since 3-4 months when we upgraded Acronis to latest version.
What's the problem?

Thanks
Claudio

0 Users found this helpful

Hello Claudio,

Thank you for your posting!

Which build you are currently using? The latest update build 38744 (released 05.06.2014) contains multiple improvements with regard to tape management.

Please let me know if the described behavior is reproduced with after updating to 38744.

Thank you.