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Rui Silva - Exchanging Knowledge About Exchange

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ESEUTIL to copy files?

Every Exchange Administrator knows what ESEUTIL does. It can be used to defragment the Exchange databases and recover free space or to repair them (knock on wood).

What probably you didn't know (I know I didn't) is that, according to the Microsoft Performance Team, ESEUTIL is the best utility to copy large files over the network. The syntax for ESEUTIL is very simple: eseutil /y <srcfile> /d <destfile>.

Read the full post Slow Large File Copy Issues.

(Source: Flaphead's blog)

Comments

Robert said:

Um, what is the definition of "large files"?

Twenty years ago it would be a 1 Mb file...

# May 22, 2007 9:38 AM

Rui Silva said:

Good point, but I guess that the definition of large probably has something to do with your network bandwidth ;-)

# May 23, 2007 6:15 AM

David Rummel said:

Actually is has to do with the file size, not bandwidth.  I little bit of paged pool memory is used with each packet write. The paged pool memory space is finite.  If the file is larges enough you can use up most of your paged pool memory space and the file transfer comes to a crawl while the server tried to do free up more paged pool memory to continue to transmit the file.  

# September 20, 2007 9:50 AM