Solved

robocopy /mir killing server performance

Posted on 2011-03-11
4
853 Views
Last Modified: 2012-08-14
Server 2003 with the 2003 Resource Kit version of robocopy.
Copying 325GB from internal disk (raid10 sas) to external USB disk.

While the copy is running, disk queue length and memory pages/sec in Performance Monitor skyrocket.  The host is also nearly unresponsive.

Do I need to run it multithreaded (can I even run the newer MT version on 32-bit 2003?), or will the IPG option control the performance?
0
Comment
Question by:snowdog_2112
  • 2
  • 2
4 Comments
 
LVL 8

Expert Comment

by:jawa29
ID: 35111186
Hi snowdog_2112

You can add the /IPG:n where n is time in milliseconds. this setting doesn't limit the bandwidth however it will pause n number of milliseconds between pack transfers.

Also add /z so if the transfer gets interrupted it will start again where it left off and not at the beginning of the file.

Jawa29

0
 

Author Comment

by:snowdog_2112
ID: 35111882
what's a good IPG setting for the situation I described (copying 320GB from internal disk to USB disk without killing server performance)?

Here's what we're doing:
Symantec BESR backup to internal disk
Post-job command runs scheduled task that fires robocopy [internal] [usb] /MIR

0
 
LVL 8

Accepted Solution

by:
jawa29 earned 500 total points
ID: 35112101
You could try a higher number first and monitor server performance, if it doesn't improve with say 2000000 (i.e. 2 Secs) then you can increase or decrease if performance does improve.

Jawa29

0
 

Author Closing Comment

by:snowdog_2112
ID: 35112375
Thanks.  I'll followup with a report on what value works - it will take some trial/error to find the balance between performance and allowing enough time to finish the job in the allowed window.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Organizations create, modify, and maintain huge amounts of data to help their businesses earn money and generally function.  Typically every network user within an organization has a bit of disk space to store in process items and personal files.   …
I've always wanted to allow a user to have a printer no matter where they login. The steps below will show you how to achieve just that. In this Article I'll show how to deploy printers automatically with group policy and then using security fil…
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…

867 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now