725n Problem copying 1GB+ files

what is using the cpu resources? can you review your perfmon logs to determine what is using up that much of the cpu's time?

I get the same thing with my 715N, anytime I am moving/copying files to the NAS, it can get slow, or tell that resource no longer exists? What is up with that. But then I can refresh the network and it is there (the NAS not necessarily the files I copied or moved). I checked the Cables, drivers, switch (which is a dell also) and I still have very very poor network performance. My Linkstation never had problems copying files to it, it might have been what I though was slow...but the 715N becomes really slow to the point were it isnt even talking back in forth to the sender (no network activity, and then I would get a not responding in my window...once the transfer would hang, or a resource no long exist message...but then I can refresh and boom there the NAS...strange) but I can remote desktop connect to it...and the 715N isnt doing anything out of the ordinary..CPU % is normal, RAM is decent...everything checks out. I would begin copying files to it and half way thru it would get super slow or seem to stall, but once again go right in the 715N via Remote Desktop Connection and the system isnt doing anything funny other than not transfering the files I want...zero network activity. This is drivng me crazy, I login to the unit...no High CPU time, all things look normal. The unit is a very lean setup. Necessary Service Packs, hot-fixes (critical updates) and a virus protection program that is recommended for this unit (Symantec Corp Ed). I cant figure it out. I am adding my RAM to it to bring it up to 512MB (once it comes in), according to the Tech that..might help...I wish there was some certainty. But strange, I just set the unit up last week, updated firmware before install...checked out great, new Maxtor 120GB 8MB 7200RPM drives, and Additional 256MB (still waiting to arrive). I reinstalled from scratch, the system is fresh. Looks to run excellent. no errors in the event viewer. I cant seem to understand why this device...which was designed to be fast over the network gets as slow as a floppy, and Im the only one using it. I even isolated it on its own switch with one pc moving files to it on that switch with no other pc on that switch. I had the d**n thing slow up...at one point I hit cancel and waiting and tried again...then the whole directory copied. It's sporadic, but does happen often. Strange...very strange. I even tried the other NIC in the NAS, then both, different switch, even a different PC to move files from to it. No different. Restarted...etc. Any Idea. Is there a File I am missing, driver, setting. I tried the updated drivers...I Didn't change anything. I havent played around the NIC settings...maybe I should but there are so many, I would know what to do. It is very strange. I hope someone else has the same goofy network issues, but figured it out.

I did some tests from my dual screen setup so I log into the 715N via RDP (Remote desktop Connection) and I watch the NAS and I also watch the file transfer/copy via the other screen... starts fine...and stalls...try it again...stalls cancel it, try again it goes...while I'm doing this I am monitoring the send/receive of both nics one on the NAS and one on the PC (Network Property windows) and they seem to stop sending and receiving from each other...sometime in the begin of a copy or toward the middle...it's all over. What the H**l?

Any Help would be great. I like this unit. I know it isn't defective for we had it at the Office, they retired it for a 725N because the 715N is now out of warranty so I got it, transferred the ownership, and sunk $400 in it with new drives and memory. I really want it to work. I contact support prior to get the drives so I would get the right ones. Once again any help would me so much appreciated, its driving me nuts.

Anyone get any resolution on this issue?  We have always been experiencing a similar problem.  When we try to copy a chunk of file(s) (up to 200mb of either a single or multiple files), the copy process slows to a crawl, others on the network cannot get access to the server (or verrrrry slooow access), and we've even had our server crash.  Any help would be appreciated.

This is the one that I had trouble with: Intel 8255x-based PCI Ethernet Adapter, This driver seems to work: Intel(R) 82559 Fast Ethernet LAN

I played around with the NIC drivers. Force the NIC drivers. I had tried so many things and when it came down to it. It was the NIC. Try the driver for W2K that has a description as: Intel(R) 82559 Fast Ethernet That seemed to work for me. I had to force it. Version number is: 8.0.17.0. Post when you are done...curious to see if my fix works...Dell was no help in my quest for this solution!!!

I wish I could try your suggestion of a new nic driver, but the 725n comes with Broadcom Gig Cards and I'm using the latest drivers.

Last year some time I ended up sending the entire unit back to Dell for repair. They changed out everything from the motherboard to hard drives. It came back to me and it worked for about 3 months. After that period of time, the slowness symptom came back and copying large files to it because impossible. I think I'm going to cut my loses and invest in a different product for my needs because apparenlty DELL can't get their act together with support on this issue.

Good to know someone's already tried updating the nic drivers for the broadcom gig nic because I called in to dell and the tech guy (who seemed uninterested) suggested to update the nic driver which I haven't tried, and now will likely not try knowing that someone else has tried it without success.  Note, when our server starts to slow in this situation, our server CPU is at 100%!!  The dell tech pointed out all the obvious like viruses, etc., but this has been happening since day one and all windows critical updates are always loaded as soon as they come out.  And if you're like me, I hate troubleshooting servers that are being used by users 24/7 especially when alot of suggestions require a reboot.

I think its windows update causing a problem for data transfer over 1 GB.

I had the same issue, we rebuilt NAS with new HD. Test the data transfer of 10 gb over the network and crossover, it worked fine no problem.

I did windows update on NAS and try the same transfer again and transfer failed on 20 %. Let me know if you guys having this problem after you did windows update.

I thought the same thing. I was always leary of performing windows updates on these NAS boxes. I sent my box back to dell for a rebuild. It came back working fine for about a month. The problem eventually came back to haunt me. No windows updates had been done. Dell has no more suggestions.