How to avoid a NAS CPU bottleneck when using SMB
I have a NAS running Ubuntu connected via gigabit ethernet to a Windows 10 PC. When copying files via SMB from that PC to the NAS, a single CPU core is at 100% usage (it's a rather slow, low power dual core Intel CPU). The speeds I reach this way range from 20-35MB/s. However, when copying the files via SCP using the Ubuntu runtime in windows to that NAS, I reach consistent 100MB/s speeds. When doing that, both cores are at about 50-70% load. My question is, is there anything a I can configure to improve the efficiency of SMB on a slow CPU (using all the cores?) or is there a different way I can conveniently access my NAS from Windows Explorer while still getting the full performance?
NAS specs:
Intel Atom C3338
1x 8GB DDR4
1x SSD for OS
4x 6TB HDD in RAID 5
Ubuntu 18.04
Samba 4.7.6-Ubuntu
networking windows-10 ubuntu nas samba
asked Jan 27 at 13:19
Andreas HartmannAndreas Hartmann
7572821
add a comment |
I have a NAS running Ubuntu connected via gigabit ethernet to a Windows 10 PC. When copying files via SMB from that PC to the NAS, a single CPU core is at 100% usage (it's a rather slow, low power dual core Intel CPU). The speeds I reach this way range from 20-35MB/s. However, when copying the files via SCP using the Ubuntu runtime in windows to that NAS, I reach consistent 100MB/s speeds. When doing that, both cores are at about 50-70% load. My question is, is there anything a I can configure to improve the efficiency of SMB on a slow CPU (using all the cores?) or is there a different way I can conveniently access my NAS from Windows Explorer while still getting the full performance?
NAS specs:
Intel Atom C3338
1x 8GB DDR4
1x SSD for OS
4x 6TB HDD in RAID 5
Ubuntu 18.04
Samba 4.7.6-Ubuntu
networking windows-10 ubuntu nas samba
asked Jan 27 at 13:19
Andreas HartmannAndreas Hartmann
7572821
1
What version of SMB are you using. Please edit your question and include this vital information necessary to answer your question
– Ramhound
Jan 27 at 13:22
add a comment |
I have a NAS running Ubuntu connected via gigabit ethernet to a Windows 10 PC. When copying files via SMB from that PC to the NAS, a single CPU core is at 100% usage (it's a rather slow, low power dual core Intel CPU). The speeds I reach this way range from 20-35MB/s. However, when copying the files via SCP using the Ubuntu runtime in windows to that NAS, I reach consistent 100MB/s speeds. When doing that, both cores are at about 50-70% load. My question is, is there anything a I can configure to improve the efficiency of SMB on a slow CPU (using all the cores?) or is there a different way I can conveniently access my NAS from Windows Explorer while still getting the full performance?
NAS specs:
Intel Atom C3338
1x 8GB DDR4
1x SSD for OS
4x 6TB HDD in RAID 5
Ubuntu 18.04
Samba 4.7.6-Ubuntu
networking windows-10 ubuntu nas samba
asked Jan 27 at 13:19
Andreas HartmannAndreas Hartmann
7572821
I have a NAS running Ubuntu connected via gigabit ethernet to a Windows 10 PC. When copying files via SMB from that PC to the NAS, a single CPU core is at 100% usage (it's a rather slow, low power dual core Intel CPU). The speeds I reach this way range from 20-35MB/s. However, when copying the files via SCP using the Ubuntu runtime in windows to that NAS, I reach consistent 100MB/s speeds. When doing that, both cores are at about 50-70% load. My question is, is there anything a I can configure to improve the efficiency of SMB on a slow CPU (using all the cores?) or is there a different way I can conveniently access my NAS from Windows Explorer while still getting the full performance?
NAS specs:
Intel Atom C3338
1x 8GB DDR4
1x SSD for OS
4x 6TB HDD in RAID 5
Ubuntu 18.04
Samba 4.7.6-Ubuntu
networking windows-10 ubuntu nas samba
networking windows-10 ubuntu nas samba
asked Jan 27 at 13:19
Andreas HartmannAndreas Hartmann
7572821
asked Jan 27 at 13:19
Andreas HartmannAndreas Hartmann
7572821
edited Jan 27 at 14:42
Andreas Hartmann
asked Jan 27 at 13:19
Andreas HartmannAndreas Hartmann
7572821
asked Jan 27 at 13:19
Andreas HartmannAndreas Hartmann
7572821
asked Jan 27 at 13:19
Andreas HartmannAndreas Hartmann
7572821
7572821
1
What version of SMB are you using. Please edit your question and include this vital information necessary to answer your question
– Ramhound
Jan 27 at 13:22
add a comment |
1
What version of SMB are you using. Please edit your question and include this vital information necessary to answer your question
– Ramhound
Jan 27 at 13:22
1
1
What version of SMB are you using. Please edit your question and include this vital information necessary to answer your question
– Ramhound
Jan 27 at 13:22
What version of SMB are you using. Please edit your question and include this vital information necessary to answer your question
– Ramhound
Jan 27 at 13:22
add a comment |
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What version of SMB are you using. Please edit your question and include this vital information necessary to answer your question
– Ramhound
Jan 27 at 13:22