I set up an internet client with 1 TB HDD to make the full and incremental images of this HDD. On first full image backup it showed that is going to copy real amount of data (~13 GB), but on the next incremental or full image backups it tries to copy full HDD like sector to sector mode. Server’s WebUI shows that it’s going to backup 931.41 GB at 5 mbis/s speed (limit is set in client settings) with ETA of 2 weeks 4 days 3 hours 12 minutes !!!
Manual said that I can choose to make synthetic full image backup, in this case “full images should transfer all data or only data which changed from the last incremental or full image backup”. But I don’t see this, it’s still want to transfer the whole HDD.
Is there a way to make UrBackup transfer only changes and not everything every time?
The disk might have had a disk operation in this time interval – like a defragmentation. That would make it different enough, to where only the changes is the entire disk already. See what happens the third time – and if it’s the case again, then try to figure out which disk operation is doing this.
Maybe there is an option to experiment with a smaller disk which would be incrementally backed up, say, every hour. That way you would catch, at which point the disk gets changed like that. Because with a bigger disk, all you know is that it changed during these couple weeks, which is not much information for you.
A couple of things.
That transfer speed is incredible slow. Would you be willing to increase that?
I mean, since there are 8 bits in a Byte, your 5 Mb/s would be equal to 5÷8 = 0.625 MB/s.
Similarly, there are 1000 MB in a GigaByte, so your 5 mb/s would be equal to 0.625÷1000 = 0.000625 GB/s.
At this speed, transfering all your data would take 931.41GB ÷0.000625GB/s = 1,430,256 s
Or +/- 17.2483 days which is about the ETA that urbackup is giving you.
I don’t know if you use the CBT client but, In my setup, if i install the client using the “MSI installer” i would have incredible slow transfers. This was resolved by using the “EXE” installer.
I will say that in the time that has elapsed since I posted here, I found that the answer seems to be No – that URBackup does transfer the entire disk contents each time. Instead, when it comes time for Nightly Cleanup run, it compares the changes and discards what matches. However, for the Transferring part of the process, I did not find a setting that allows only the changed part of the disk to get transferred.
