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The backup speed over Ethernet is only 1Gbps


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I tested file copy speed via configured SMB shares and found it can reach 5Gbps. I ruled out impacts from server hard drives, NICs, and network switches. After checking the network settings in both the media agent and client properties (no specific configurations were found), where else could the bottleneck be? Thank you!

Best answer by Scott Moseman


https://documentation.commvault.com/2024e/expert/performance_analysis_tool.html

You could use the Performance Analysis Tool to see what it suggests.

Thanks,
Scott
 

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4 replies

Scott Moseman
Vaulter
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https://documentation.commvault.com/2024e/expert/performance_analysis_tool.html

You could use the Performance Analysis Tool to see what it suggests.

Thanks,
Scott
 


Scott Moseman
Vaulter
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One suggestion is to review the DDB Q&I performance.  It can often be a bottleneck, and one you would not run into if you perform a file copy outside of Commvault to test the network.

Thanks,
Scott


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  • Author
  • Bit
  • 3 replies
  • April 11, 2025
Scott Moseman wrote:


https://documentation.commvault.com/2024e/expert/performance_analysis_tool.html

You could use the Performance Analysis Tool to see what it suggests.

Thanks,
Scott
 

I tried increasing the custom parameter nNumPipelineBuffers to 600 based on the report, but the backup speed still shows no improvement after checking. Are there any other settings I can adjust? Thank you.


Forum|alt.badge.img+1
  • Author
  • Bit
  • 3 replies
  • April 11, 2025
Scott Moseman wrote:


https://documentation.commvault.com/2024e/expert/performance_analysis_tool.html

You could use the Performance Analysis Tool to see what it suggests.

Thanks,
Scott
 

I have checked that the backup bandwidth for the newly initiated backups has been increased. Thank you for your help.


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