I have been a long time user of Cobian Backup (CB) and because all this time it worked flawlessly, I was a bit reluctant of switching to Cobian Reflector (CR). But several days ago I finally tried CR, but being suspicious of a new code, I left CB running besides CR. I've set up both to run side by side without interfering.
I was a bit surprised when I saw all archives created by CR small in size, compared to what CB created. For an example, while a certain archive created by CB was ~4GB in size, one created by CR was only ~300KB! When I opened the archive, all the files and folders were in the archive, but they were all zero-sized.
When setting up CR, I tried to copy settings from CB as much as possible, I don't think I missed something, but there is a possibility?
Both of them are copying stuff from a Synology NAS to a local disks, creating non-solid 7zip archives for each job, using LZMA method, with multithreading option enabled. Filenames are not encrypted.
Anyways, I tried to play with settings, particularly Archive settings, and found out something interesting:
- creating zip archive produces no errors, no matter what other options are set
- creating 7zip archive while using multithreading and LZMA/LZMA2 methods leads to the zero-files error
- creating 7zip archive while using multithreading and PPMD method creates no errors
- creating 7zip archive while not using multithreading creates no errors, no matter what method used
- Encrypt file names and Solid archives make no difference
Cheers!
