Windows 2008 Server R2 network backup throttling

I have a Windows 2008 R2 file/app server. One night a week, I copy some files to share on a NAS. This is a production server that has active users 24/7. During the time that the files are copying to the NAS, the server becomes almost inaccessible because of the bandwidth across the HP ProCurve Switch. I am thinking of utilizing QoS on the switch but not sure which is the best option. I thought of prioritizing ports first. For that, would I give low priority to SMB ports 137, 138, and 139?
Jason MillsappsNetwork AdministratorAsked:
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Jason MillsappsConnect With a Mentor Network AdministratorAuthor Commented:
Update: The office is going to connect an external HD to the server to store the backups off-site. So that solves my problem.
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Thomas GrassiSystems AdministratorCommented:
What are you using to copy the files with?

Try using a program like teracopy or robocopy see if anything changes.

They both buffer the data more efficiently
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Jason MillsappsNetwork AdministratorAuthor Commented:
I was using a batch file to copy them. I will try the alternate software.
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Thomas GrassiSystems AdministratorCommented:
Yes I have a batch file that does that too

Keep us posted.
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Jason MillsappsNetwork AdministratorAuthor Commented:
I will not be able to test the software (teracopy) until this weekend. I will check back after that.
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Jason MillsappsNetwork AdministratorAuthor Commented:
Decided to go another route
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