I am having this problem with two machines, One running Windows Server 2003 and the other a 2000 server with an external array (for backups and some other storage). When I attempt to load a file from either machine either with a program already up and running or by double clicking on the file, it takes 8-15 seconds to load the file. It also takes what I would consider an excessive amount of time to save the file to the server.
I've not been able to narrow down the exact location fo the problem, but it seems to lie within the servers themselves. I've taked the same files and placed them on other servers, and tehy load almost instantly, and save the same way. When I am on the servers, there does not seem to be any delay accessing the disks.
I've been able to rule out every network component by switching cables bewteen ports on swtiches, hups and patch panels so that a different route is run, but I have not conclusively ruled out the builtin NICs, though each machine has two of them built in--turning on the other NIC and using it alone does not improve or worsen performace loading or saving files.
I've been running a performance monitor on one of the machines, but nothing has struck me as hindering performance, but disk activity and CPU cycles are low as is memory usage on that server.
If someone could point me in the right direction, I'd be more than happy.
In case it matters, one machine is a Dell Poweredge 2850 and the other is an older HP Netserver with a Promise Technology 4 disk array attached.
As far as the backups go--we get tremendous throughput, and very few apparent errors--most of which come from the other servers here due to open files and some such thing.