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Forum Discussion
Rsync and scp performance
I have just bought a Readynas 4 ultra, I will now transfer 2,5 tb of data from my old Qnap NAS. Both are connected to a Netgear gigabit router. I started a rsync job to move the data from the Qnap to the Readynas, it is going awfully slow. My estimation is 10 mb/sec or less.
I also did a scp test between the two and got 3 mb/sec?? 30 minutes for a 5gb file.
I thought it would be faster over a local gigabit network??
I also did a scp test between the two and got 3 mb/sec?? 30 minutes for a 5gb file.
I thought it would be faster over a local gigabit network??
7 Replies
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- scp has overheads for the security. Rsync is very resource intensive and quite slow for full backups. Using another protocol such as NFS is much quicker for full backups.
- You mean by mounting a share on the Readynas and copying that way? Ok, will try that!
- Stopped the rsync job and are now copying through NFS share, you don't get transfer speeds when copying though so I don't really know how fast it goes..
- The copy speed is now about 8mb/s, this is gonna take a while. Don't know what the bottleneck is here...
- mb/s or MB/s (bits or bytes)?
- 8 megabytes per second
- Well I guess the main question is whether you are better off letting it run to completion, or stopping the transfer and troubleshooting. You're getting 700 GB a day (more or less). If the total transfer time will be 2-3 days, you are probably better off letting it finish than stopping/starting yet again.
I'd expect it to be faster (though I have a pro, not an ultra). Have you ever measured the transfer speed of the QNAP?
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