2.2.11-cbt beta client backing up full .avhdx files every time

#1

These are the snapshot diff’s of Hyper-v disk vhd(x) files. Looks like it doesn’t/can’t track the block changes?

Is this a limitation of the client?

#2

Hi silversword,

I believe Uroni was already working on this, I believe a new server version (2.3.0) is in testing now that should have better compatibility with Hyper-V disks to solve this issue.

#3

It should track them if the paths are the same between different backups.

Are you using btrfs/ZFS on the server? Otherwise it cannot store them… Plus you need to set the block hash transfer mode to only transfer them.

#4

ZFS on the server. I’ll test with the block hash transfer mode, thanks!

#5

You’ll also have to use the Copy-on-write file backups with ZFS ( https://www.urbackup.org/administration_manual.html#x1-11200011.7.2 )