Hi Everyone, (client 2.3.6 CBT, Server 2.3.8)
I have the client with change block tracking and it has been working well for me–I have seen backups shrink nicely and become feasible over the internet.
I use the CBT feature to backup off site a VM.
I have spoken in another post about how I did it to reduce the backup size etc (sorry but not sure how to link to it), as I have limited or as it can be called metered internet. I am still looking for ways to minimize the data transfer.
to that end I decided to setup a test locally to see how each setting affected the data size.
I have a folder with 73 files in it with sizes of files from 70GB to a few hundred MB, (this is a forever incremental VEEAM test back folder for a VM backed up and changed every hour). the 70GB file is changed every hour as the old incremental backup is rolled into it (normally about 3-400MB and a new file added and an old one deleted of the incremental backups.
This set of files resides on a VHD drive.
Now, when I do an incremental backup of files I get a huge change of about 32GB, (local incremental file backup transfer mode: Block Differances - Hashed).
When I do an image incremental backup of the VHD drive these files are on the transfer amount is around 1.2GB.
I thought I would check (but still very new to URbackup) and on the info form for the client which says what has CBT active there is the message “output buffer too small”
Anyone know what it is or know of anyway I can reduce backup sizes further?
As an example when I do a incremental file backup on another machine where the file changes are a few hundred MB only my transfers are approx 10MB.
thanks for anyones input it is appreciated.