garesu
Dabbler
- Joined
- Apr 19, 2016
- Messages
- 11
Hi all,
I'm just starting with FreeNAS, but I'm trying to read as much as possible, and I'm pretty happy with what it allows me to do compared to my low end QNAP.
The only issue I'm having so far is that while I'm able to saturate the 1 gbps link reading files from FreeNAS, I'm capped at 20MB/s writing to it. I noticed it while transferring data from my old nas to this machine, and started investigating and testing using single >1GB files from my PC's SSD.
The hardware should be plenty powerful to reach that write speed, but just to be sure I started a large file and checked:
top -> CPU never goes north of 5-10%
iostat -x 1 -> %b alternates between 0 and about 50%, averages at about 20%
Network shouldn't be a problem, since I'm able to saturate the link when reading.
I read many threads, which seem to blame CPU, pool performance, not enough ram, network, SMB configuration.
I've also found threads where, especially Cyberjock, advised about not changing parameters, which are now either defaults or unsupported with smb4.
I tried setting CIFS log level to full and checking the log with tail -f /var/log/samba4/log.smbd, which seems to say my windows 10 pc connection is using smb2, while issuing the Get-SmbConnection from powershell yelds
Any help would be much appreciated
Thanks
I'm just starting with FreeNAS, but I'm trying to read as much as possible, and I'm pretty happy with what it allows me to do compared to my low end QNAP.
The only issue I'm having so far is that while I'm able to saturate the 1 gbps link reading files from FreeNAS, I'm capped at 20MB/s writing to it. I noticed it while transferring data from my old nas to this machine, and started investigating and testing using single >1GB files from my PC's SSD.
The hardware should be plenty powerful to reach that write speed, but just to be sure I started a large file and checked:
top -> CPU never goes north of 5-10%
iostat -x 1 -> %b alternates between 0 and about 50%, averages at about 20%
Network shouldn't be a problem, since I'm able to saturate the link when reading.
I read many threads, which seem to blame CPU, pool performance, not enough ram, network, SMB configuration.
I've also found threads where, especially Cyberjock, advised about not changing parameters, which are now either defaults or unsupported with smb4.
I tried setting CIFS log level to full and checking the log with tail -f /var/log/samba4/log.smbd, which seems to say my windows 10 pc connection is using smb2, while issuing the Get-SmbConnection from powershell yelds
Code:
ServerName ShareName UserName Credential Dialect NumOpens ---------- --------- -------- ---------- ------- -------- OLDQNAP Backups PC\Giorgio OLDQNAP\admin 1.5 1 FREENAS Public PC\Giorgio PC\Giorgio 3.1.1 1
Any help would be much appreciated
Thanks