Thanks for your reply. Oh, definitely a problem here! New R2 server with updated NIC drivers but using Intel NIC, this was my test box on meg switch - this one actually doesn't seem that bad now looking at it! B is by far the worst, this is the one we noticed the problem on originally. Identical spec to A. I've already run Update Express on them to bring hardware and drivers up to date but will work on the for now as it's not yet in production and uses the same Broadcom NIC chipset.
This is a shot in the dark, but did you check those file transfer speeds directly on the servers, bypassing the network?
I actually have an X at home and it is fast as anything. With "Mbps" we are talking about bits, right? I haven't done yet actually, that's worth trying for sure Yeah those 's are great servers, I've got loads of them on site and even these units themselves are fast as you like, they respond to application requests quickly, logins to the console etc. The cores aren't being hammered. Going to check firmware on this too just in case but I'd have HOPED updatexpress would have sorted all this when the server was built a couple of weeks ago Yes both running on the same switch but possibly different card slot , just noticed rookie mistake, thanks for reminding me to check!
The test box running on meg though and this is out performing both of these. Will check why this is not running at a gig right now though Is there potentially an explanation of why a Win 7 to server 2k8 might negotiate a much better file transfer rate?
We're both on the same switch and both have meg nics. You are welcome to disagree with me, its your environment. I'm just giving you a best practice way of setting up things. In my experience all your eggs in one basket is never a good idea, i think that's just good IT practices at a minimum. If it works for you great.
My approach is to prevent them from happening by designing a better environement and mitigating the risks across several servers not one. To solve performance issues takes time, and research and loging performance counters, recording dates and times of when things start to go bad, then correlating that information.
Good luck, it will be a long road. If you find the magic bullet, great. If not dig in and start the hard work. I was the one installing all servers starting with and :. I didn't have to tweak for faster file transfers, that's the whole point here. I had lots of other trouble with them like Time sync issues, file replication issues, some initial driver issues, but never a problem with the speed of file transfers across our LAN. Anyways, DNS all zones replication now works correctly between all 3 domain controllers R2 and 2x SP2 , I retested file transfer speeds and they got a tad better on R2, but nothing dramatic.
I will try optimizing this R2 for a File Server role and see what comes up later. I doubt it will change anything much. I have found DOZENS of threads on technet, techarena and other forums where users are complaining about low file transfer speeds of R2, most of them are left unsolved. Not good news. Seems like Microsoft is repeating the "Vista success story" now in the segment of servers operating systems Yeah, i see those also. I had this experience on two types of network cards. After much head bashing I found various bits of info about the network adaptor settings and made the following changes.
Also ensure that your flow control is enabled on your host NICs. Great solution. This has been driving me nuts for some time also. So far, since applying your solution, it seems to be working well. Thanks, was trying to figure this out — your fixed worked immediately when the hyper-v server adapter setting were updated — didnt have to update the guests.
I have r2 sp1 host with two VMs. I had problem copying large file from one of the VMs to a remote network share. So I disable the property on VM where copy of large file was not working and it resolved the issue. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Helping communities build their own LTE networks. Podcast Making Agile work for data science.
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