Recs.
Updated
BackupPC is a high-performance, enterprise-grade system for backing up using efficient on-disk storage, compression and various levels of incremental backup.
SpecsUpdate
Pros
Cons
Con Version 3 on-disk format is impossible to "file-copy"
V3 format uses hard-links which is almost impossble to "file-copy" (using filesystem level tools like cp or rsync) on a large system, since the hardlink management eats up vast amounts of memory (the only way to copy a backup server is to copy using a whole-disk copying method). This has been fixed in version 4 format which uses pointer files instead of hardlinks.
Con Web UI timeouts on large amount of data to be displayed
The Web UI needs large amount of time to walk a directory with thousands of entries and it may cause the webserver or client to timeout. Large directories may require the admin to use the command line tools to list or restore files or directories.