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Solved
Sync to USB drive instead of clear and full backup
Is there a way to sync a folder on the ReadyNAS to an USB drive instead of having it cleared and fully backuped? I have a large share on the NAS and a 2 TB USB drive attached. On this share new files...
local rsync backup would be a good feature. I suggest posting it in the idea exchange ( https://community.netgear.com/t5/Idea-Exchange-for-ReadyNAS/idb-p/idea-exchange-for-storage?topic-zoom=&sort-by=&date-range=all )
As that linked thread indicates you can use Rsync. With Rsync only the changes are copied across on incremental backups and you can remove files on the backup destination that were deleted on the source.
Okay, I have configured it that way and launched the backup. After 24 hours it still haven't completed. The size is about 1 TB and almost no files have changed (something like a dozen files added on the backed up share) - I know rsync is quite intelligent, but it seems forcing it to talk locally over TCP/IP is to much overhead for the little RN102. What is more, most of the admin UI is unresponsive - it won't for example load anything in the shares tab.
Does it matter what FS is on the USB drive? This drive was my archive drive before I bought the ReadyNAS. It is NTFS formatted. I have copied all files from it to a share on the NAS (through a local backup job) and the new backup job is set up to copy files from this share to the USB drive using remote rsync with all default settings.
If this is the first time the backup job is running, it will do a full backup (overwriting files that are already there).
I recently rebuilt my RN102 using rsync to restore data from my pro-6. It ran at approximately 1 TB a day. I haven't used rsync to usb on the RN102, but it is possible you simply haven't waited long enough for the first backup to complete.
Okay, although it failed (i've setup it to backup to the /USB, but it used the backuped up share name so it run out of space), but copying nearly 1 TB took 80 hours. I've tested before copying data NAS->USB via the admin UI and it took about 40 minutes to transfer 100 GB, so the overhead of doing it the recommended way is over 10 times which is unacceptable. Any chance we get local rsync in an update? Or maybe a local rsync backup can be easily hacked through ssh?
local rsync backup would be a good feature. I suggest posting it in the idea exchange ( https://community.netgear.com/t5/Idea-Exchange-for-ReadyNAS/idb-p/idea-exchange-for-storage?topic-zoom=&sort-by=&date-range=all )
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