2 ms·
Something is very, very wrong then. rsync will use 100% of the bandwidth provided. It won't be any slower than anything else you might try over the same netwo
by michaelcampbell 7y ago
Something is very, very wrong then. rsync will use 100% of the bandwidth provided. It won't be any slower than anything else you might try over the same network. If you found that to be the case, it's almost certainly something else.
- bitL 7y agoI guess if you have many overlapping files on both drives and you force rsync to actually look inside and compare them, its efficiency might suffer? It wasn't just a simple copy from one full drive to another empty one, rather two drives with overlapping files that had to be synced. I experimented with rsync to see if I could replace RAID with it, i.e. one primary drive, one backup drive synced on the background instead of mirroring directly (and getting the same low-level bugs spread to both drives or getting both drives to die at around the same time). Both drives were encrypted on the device level (dm-crypt AES128) with standard ext4 on top of mapped drive. I previously ran configs with RAID-1 as well as BTRFS RAID-5 (horribly buggy and dangerous) and wanted to see if rsync makes sense for this purpose (it doesn't). I couldn't use ZFS as that NAS didn't have ECC.