Copying large amount of data

[acl03]

I have to copy about 950GB from one logical volume to another on the same server. I am in need of two pieces of advice:

1) What is the best tool to do this? I have used xcopy and MS RichCopy - not sure if RoboCopy or some other tool might be better.

2) Should I turn off Diskeeper defrag while doing this?



Thanks,
Andrew

Hard work often pays off over time, but procrastination pays off right now!

 

[58sniper]

1) Robocopy
2) Yes

Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

http://www.ucblogs.net/blogs/exchange/

 

[itsp1965]

It depends on the size of the files you are copying. I have used to robocopy for file server migrations (lots of small files without issue).
There was an earlier thread a few weeks back regarding issues copying 100Gb+ file where robocopy would choke. I ran into a couple of articles where Exchange's ESEUTIL command can be used for copying large files efficiently
There are plenty of threads regarding this already that you can look up in order gauge other users experiences
HTH

 

[acl03]

Thanks guys.

Thanks,
Andrew

Hard work often pays off over time, but procrastination pays off right now!

 

[58sniper]

I've copied >1TB with Robocopy. The nice thing is that it has the ability to just figure out where it left off. So if it has a problem, you can just run it again. It'll figure it out.

Pat Richard MVP
Plan for performance, and capacity takes care of itself. Plan for capacity, and suffer poor performance.

http://www.ucblogs.net/blogs/exchange/

 

[acl03]

I read a technet article on the tool RichCopy, it seems to have that feature as well as advanced multithreading control.

http://technet.microsoft.com/en-us/magazine/2009.04.utilityspotlight.aspx?pr=blog

Trying to find the sweet spot is a bit difficult though, as you can control the number of files to copy at once, number of threads per file, and number of threads to search the directory tree. You can also control how much cache to use.





Thanks,
Andrew

Hard work often pays off over time, but procrastination pays off right now!