Generally, any directory with more than 10,000 files will be slow to browse or manipulate. Turn off short file name creation. See this article for some more details https://technet.microsoft.com/en-us/library/cc781134.aspx
The article mention 300k files, but I've consistently run into problems with as few as 10k. This article is old, but still mostly good: http://www.windowsdevcenter.com/pub/a/windows/2005/02/08/NTFS_Hacks.html On Thu, May 12, 2016 at 11:33 AM, Scott Schneider <[email protected]> wrote: > Thanks for all the suggestions. > > I disabled RSS and Chimney offload, it made no difference. It is a 4 port > Qlogic (Broadcom) 1 GB card in the server. I updated the drivers to latest > on Dell’s site. When I put a second network card in the backup server and > put it on a separate closed switch (only the 2 servers attached to the > switch), I get the same slow throughput. > > The folder I am using for the test has 31 GB, 13694 folders and 517798 > files. It is consistently slow. A folder that copies quickly has 18 GB, > 31768 files and 795 folders. > > I see there is a firmware update for the Qlogic card. I may be able to try > that after hours. > > > > From: [email protected] [mailto:[email protected]] > On Behalf Of Rene de Haas > Sent: Thursday, May 12, 2016 1:47 PM > To: [email protected] > Subject: Re: [NTSysADM] RE: Windows 2008 R2 server > > > > Yes, I read about those as well, however since it's only certain folders my > guess is it's something else. > > Does it matter at what time you do the copy? Any file in that folder? To > which server? > > > > On Thu, May 12, 2016 at 6:31 PM, Kennedy, Jim <[email protected]> > wrote: > > Check the nic settings. Disable RSS and Chimney offload. > > > > https://support.microsoft.com/en-us/kb/951037 > > > > > > From: [email protected] [mailto:[email protected]] > On Behalf Of Scott Schneider > Sent: Thursday, May 12, 2016 12:07 PM > To: [email protected] > Subject: [NTSysADM] Windows 2008 R2 server > > > > Has anyone ever run across a really poor performance copying specific > folders from 2008 R2? We have a 1 GB backbone with HP switches. I did my > test copying to a windows 2012 R2 fully patched server (which is the same > Dell backup server using Arcserve). Both servers are fully patched. The > production server is a file server, and also an app server, using apache and > a canned Oracle database. Max connections are 50 endpoints. I noticed the > performance hit running our nightly backups. Overall throughput crawled to > around 1 GB per minute, it used to run at about 3 GB per minute. I set up a > private network for copying/backup and the speed didn’t improve. I then > experimented with trying individual folder copies. That is when I noticed > some folders would copy at 80 to 100 MB per second, while others would copy > at 7 to 8 MB per second. > > A second almost identical server Dell 2008 R2 server with the Oracle > database consistently gets 3+ GB throughput for the nightly backup. It > doesn’t exhibit the slow throughput. No other servers in our environment > experience the slow throughput. > > > > Strangely the issue only appears with copying specific folders. Any ideas, > I’m stumped….. > > > > Thanks > > > > Scott Schneider > > > > > >
