Aero-Graphics
Dabbler
- Joined
- Jun 19, 2023
- Messages
- 16
On my new TrueNAS CORE 13.0-U5.1 install I am having a weird issue when coping to a different location on the TrueNAS system.
Performance is generally good, I can typically max out a 10Gb/s network connection copying to TrueNAS from an external source:
But if I do an SMB copy from TrueNAS to another location on the TrueNAS storage the transfer rate is abysmally slow:
The underlying storage is plenty quick, it takes just under a minute to write a 200GB file:
And then it takes about half that time to read the same 200GB file:
And here you can see the same copy executed from the command line only takes about 1m:
So, this must be an issue with Samba. But I have been unable to find anything describing this exact issue.
Any ideas?
Rob
Performance is generally good, I can typically max out a 10Gb/s network connection copying to TrueNAS from an external source:
But if I do an SMB copy from TrueNAS to another location on the TrueNAS storage the transfer rate is abysmally slow:
The underlying storage is plenty quick, it takes just under a minute to write a 200GB file:
Code:
root@H-4-1[~]# dd if=/dev/zero of=/mnt/Q_Pool/QSBox/TESTING/dd.tst bs=1m count=200000 200000+0 records in 200000+0 records out 209715200000 bytes transferred in 55.503615 secs (3778406131 bytes/sec)
And then it takes about half that time to read the same 200GB file:
Code:
root@H-4-1[~]# dd of=/dev/null if=/mnt/Q_Pool/QSBox/TESTING/dd.tst bs=1m count=200000 200000+0 records in 200000+0 records out 209715200000 bytes transferred in 31.005955 secs (6763707070 bytes/sec)
And here you can see the same copy executed from the command line only takes about 1m:
Code:
root@H-4-1[~]# time cp /mnt/Q_Pool/QSBox/TESTING/0505-Line17075.tif /mnt/Q_Pool/QSBox/TESTING/0505-Line17075-2.tif cp /mnt/Q_Pool/QSBox/TESTING/0505-Line17075.tif 0.00s user 13.17s system 19% cpu 1:06.40 total
So, this must be an issue with Samba. But I have been unable to find anything describing this exact issue.
Any ideas?
Rob
Last edited: