Hi, I've recently installed BackupPC 4.2.1 on my home server (ARMBIAN 5.38), and I'm trying to understand the behavior of rsync's --checksum option on V4.
According to the docs, V4 doesn't have checksum caching, so I was expecting the server to read and checksum all the files during a full backup. What I'm seeing is the complete opposite: is seems my server is not checksuming any file during a full backup with the --checksum option. Reading operations on the backup disk are kept to a minimum (less than 300kB/s). Is this the expected behavior or maybe I have a problem somewhere? For reference, the same backup using --ignore-times maxes out the server's capacity at 20MB/s. In both cases the client behaves as expected, checksuming everything. Actually, the duration time of a full --checksum backup is essentially defined by the reading speed of the client disk, although I know that the server's reading speed is much slower (all this is running a full backup immediately after an incremental, so no files are transferred). Any help will be appreciated. I can send log files if needed. Best regards, Guillermo ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
