Network Performance Issues with Windows Server 2012

November 14, 2012, 9:11 am

≫ Next: Cant Install Windows Server 2012 - Error on Setup Launch

≪ Previous: Login to RDS pauses at applying printer GPO

I'm working on a project that involves some heavy network traffic (TCP/IP, with lots of connects & disconnects, most tiny messages, but some large data transfers). Since Windows 8 and Server 2012 are released, we are testing our system to see how it works with the latest-n-greatest... and we've run into a big gotcha.

I have the luxury of having two identical pairs of systems (from a hardware standpoint)... two servers and two workstations, all connected with 10GB ethernet (Intel X520) adapters, and all running identical copies of our software. The only differences are that one server is running Windows 2008 R2 and one is running Windows Server 2012. Similarly, one workstation is running Windows 7 and one is running Windows 8.

When I run load tests, the Server 2008 R2 system is able to build to and maintain a steady throughput of about 5 gigabits per second, for as long as I've let it run so far. The Server 2012 system, in contrast, will start ramping up throughput, but when it gets to about 3-4 gigabits per second, the throughput with suddenly drop to around 700-800 megabits per second, and will stay there. I've performed numerous tests in various combinations, and it appears that the problem is specific to the Server 2012 machine... no matter whether it's being 'fed' by a Windows 7 or a Windows 8 workstation. There's nothing in the Event Logs to offer any hints. Nothing reported as going 'wrong'... just performance/throughput drops to horrible levels.

I've searched Microsoft's MSDN site (and technet) for information about Windows Server 2012 Network Performance issues and/or performance tuning guidance, and finding very little... I guess because Server 2012 is so new. I've tried the few things I've found (mostly guidance related to tuning BizTalk servers), like changing the MaxUserPort value (thinking it might be port exhaustion), but so far, no joy.

Which brings me to my question: Is there detailed documentation available anywhere that might give me some guidance on identifying and correcting TCP Performance/Throughput issues in Server 2012? I'm willing to chalk it up to my own shortcomings, but I've been able to find very little documentation, even about Server 2012 TCP/IP registry settings.

I'm quite willing to do a bunch of reading, research, & testign to try and figure this out... my company would like to support the most current Microsoft OS offerings with our product... but I'm having a devil of a time finding a decent information source.

Any assistance/pointers you can provide are greatly appreciated.

John

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Cant Install Windows Server 2012 - Error on Setup Launch

July 13, 2012, 9:41 pm

≫ Next: C:\Windows\system32\silsvc.exe is not running

≪ Previous: Network Performance Issues with Windows Server 2012

Windows Server 2008 R2 Installation works fine, but when I try to install 2012 from DVD, it begins to copy files over then you get the weird blue error (not BSOD) screen that Windows 8/2012 has. It flickers and restarts itself fast enough that I cant really read the error message, but it says something along the lines of "oops something happened and your computer will need to restart." I am not 100% sure that is the error as it flashes too fast for me to really catch it.

To try and get around this, I attempted to install Windows Server 2008 R2 (Which completed without issues), and I tried to "Upgrade" by installing on top of the 2008 R2 Installation (Upgrade while in Windows). This gives me the following error.

Windows Setup cannot find a location to store temporary installation files. To install Windows, make sure that a partition on your boot disk has at least 1237 megabytes (MB) of free space.

Error code: 0x80070490

I have 4x 120GB SSD's and 6 2TB HDDs attached to this rig, there is more than enough space to install windows.

I do know that with my Motherboard (SuperMicro X9DRL-3F), the Intel Sata Controller and SAS Controllers don't show up by default in Windows Server 2008 R2 and require that I "browse" to the CD to install the drivers manually before it would recognise them to find drives to install to, but I am not sure if that is the actual issue at hand, as I am just speculating. I do not get the option to load or install drivers for my SATA and SAS Controllers as the installation fails before I reach that point.

Thanks in advance,

Richard

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C:\Windows\system32\silsvc.exe is not running

November 19, 2012, 7:29 am

≫ Next: windows server 2012 no internet

≪ Previous: Cant Install Windows Server 2012 - Error on Setup Launch

This server is upgraded from 2012 Essentials to standard. I find there is an error shown in server management. The silsvc service should start automatically but it is stopped. I check the directory but I can't find this file. What's wrong？

WHS is ready!

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windows server 2012 no internet

November 19, 2012, 12:46 pm

≫ Next: Windows Server 2012 - Memory Limits

≪ Previous: C:\Windows\system32\silsvc.exe is not running

i have installed windows server 2012 data center edition connected to internet through direct usb modem from mobile company which adding network adapter to network connection in server , i have shared the internet connection and there is another windows 8 computer working internet fine and one virtual machine on hyper-v on the same server running internet fine but the server itself which running the NAT (share internet) can resolve the fqdn names but no response later in internet explorer (the page can not be displayed) or i do test telnet yahoo.com 80 not able to connect ?????

although on windows 8 computer or VM i can telnet or browse >?????????

mohamed

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Windows Server 2012 - Memory Limits

June 7, 2012, 12:00 am

≫ Next: Server 2012 & Hyper V single server solution

≪ Previous: windows server 2012 no internet

What is the Memory Limits on Windows Server 2012 editions??

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Server 2012 & Hyper V single server solution

November 19, 2012, 1:29 pm

≫ Next: Windows Server 2012 DataCenter Licensing Virtual

≪ Previous: Windows Server 2012 - Memory Limits

What with SBS 2011 going end of life I am trying to put together alternative solutions

So far I have the following

Server 2012 Essentials + Exchange online (Office 365)
Server 2012 Essentials + Separate Exchange 2012 server
Server 2012 Standard + Separate Exchange 2012 server
Server 2012 Standard + Exchange Online (Office 365)

Ok fairly straight forward so far....

Now comes my dilemma

For companies that don't want 2 servers or Exchange Online (Office 365), what's the best solution?

Server 2012 Standard (DC) + 2 Virtual Machines (1 x Exchange - 1 x File Server) ???

Your thoughts much appreciated

Many thanks

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Windows Server 2012 DataCenter Licensing Virtual

November 19, 2012, 12:57 pm

≫ Next: IPAM DHCP RPC Access status Blocked

≪ Previous: Server 2012 & Hyper V single server solution

I have a Dell Server running VMware ESXi as the Host OS. I would like to purchase 2 liceses for Windows Server 2012 DataCenter to cover the 4 Processors of the ESXi server and unlimited VM's being hosted by that machine.

My question is, does the Host OS need to be Windows Server 2012 DataCenter in order for me to qualify for unlimited VM's?

Do I only need to buy the 2 Server 2012 DataCenter licenses to cover my unlimited VM's even though the server is running VMware ESXi?

Thank you for any and all input provided! :)

Thanks, Andrew

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IPAM DHCP RPC Access status Blocked

May 23, 2012, 5:29 am

≫ Next: DirectAccess 2012 and DirectAccess 2008 R2

≪ Previous: Windows Server 2012 DataCenter Licensing Virtual

Hi,

For the sake of testing I'm fiddling around with Server 8's IPAM features and I'm trying to make it talk to my DHCP.

I added the DHCP server and set it to Managed. Provisioned via the GPO and ran a gpupdate /force on the DHCP (S2008R2). After the reboot of the DHCP the IPAM Access Status remains "Blocked", when I look down in the details I see that the DHCP RPC Access status is blocked. The other two, "DHCP Audit share access status" and "Event log Access status" are both UnBlocked.

I figured firewalling to be an issue first so disabled the windows firewall on both machines to no avail. Checked if the RPC service is running on the DHCP server. I manually ran the script that the GPO provides on the DHCP server and it gave me the following output.

Fetching the DHCP params from registry

Creating the network share
The name has already been shared.

More help is available by typing NET HELPMSG 2118.

Add IPAMUG to the DHCP Users group name: DHCP Users
System error 1378 has occurred.

The specified account name is already a member of the group.

Fetching SDDL for dhcpserver
IPAMUG is already a member of the Service ACL

So, according to that, all the access rights should be ok and when I check the dhcpserver service's ACL it's in there.

SID for DOMAIN\IPAMUG:
S-1-5-21-484763869-706699826-839522115-2851

sc sdshow dhcpserver D:(A;;CCLCSWLOCRRC;;;S-1-5-21-484763869-706699826-839522115-2851)

Any help would be greatly appriciated!

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DirectAccess 2012 and DirectAccess 2008 R2

November 15, 2012, 6:52 am

≫ Next: Hyper-V Replica kerberos authentification problem

≪ Previous: IPAM DHCP RPC Access status Blocked

We have been playing with DirectAccess 2012 in a lab domain for a bit now with good results.

Currently we have Direct Access deployed on a 2008 R2 that uses ISATAP for internal network connectivity.

Since DA2012 does not use ISATAP would there be a problem setting up a DA2012 within the production environment or would there be some conflict with the older DA server?

Thanks

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Hyper-V Replica kerberos authentification problem

November 7, 2012, 9:12 am

≫ Next: From CORE to GUI -> The source files could not be downloaded.

≪ Previous: DirectAccess 2012 and DirectAccess 2008 R2

I have 2 Windows server 2012 mit Hyper-V and enabled replica over http.

From Server A to B i can replicate the VMs.

From Server B to A i can not replicate the VMs.

Firewalls are enabled and the Hyper-V Replica Port ist enabled.

Both Servers are in the same domain and ip network. When i would like to active the replica from B to a i've got this error:

Hyper-V failed to enable replication. Hyper-V failed to authenticate using Kerberos authentication.

Does anybody have an Idee to solve the problem?

Thank you!

christian braun

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From CORE to GUI -> The source files could not be downloaded.

November 13, 2012, 2:20 pm

≫ Next: RemoteFX licence protocol error when trying to RDP to Win7 guest

≪ Previous: Hyper-V Replica kerberos authentification problem

Hi all... I am running Windows Server 2012 Core edition, and I want to get the GUI installed.

I have tried this several different ways, but the same result comes up; which is FAILED.

First command: Get-WindowsImage -ImagePath d:\sources\install.wim

Result:

Index       : 1
Name        : Windows Server 2012 SERVERSTANDARDCORE
Description : Windows Server 2012 SERVERSTANDARDCORE
Size        : 7,178,226,690 bytes

Index       : 2
Name        : Windows Server 2012 SERVERSTANDARD
Description : Windows Server 2012 SERVERSTANDARD
Size        : 11,999,889,351 bytes

Index       : 3
Name        : Windows Server 2012 SERVERDATACENTERCORE
Description : Windows Server 2012 SERVERDATACENTERCORE
Size        : 7,172,264,095 bytes

Index       : 4
Name        : Windows Server 2012 SERVERDATACENTER
Description : Windows Server 2012 SERVERDATACENTER
Size        : 11,995,265,169 bytes

Second Command: Install-WindowsFeature server-gui-mgmt-infra,server-gui-shell -source:wim:d:\sources\install.wim:2

Result:

Add-WindowsFeature : The request to add or remove features on the specified server failed.
Installation of one or more roles, role services, or features failed.
The source files could not be downloaded.
Use the "source" option to specify the location of the files that are required to restore the feature. For more information on specifying a source location
see http://go.microsoft.com/fwlink/?LinkId=243077. Error: 0x800f0906

The same thing happens this this command:

mkdir c:\mountdir
Dism /mount-wim /WimFile:d:\sources\install.wim /Index:2 /MountDir:c:\mountdir /readonly
Add-WindowsFeature Server-Gui-Mgmt-Infra –Restart –Source c:\mountdir\windows\winsxs

The DVD is readable, and I can see the files both directly from the DVD drive and also from the DISM path.

Any suggestions? I must be missing something rather simple. Yes, I am running it as an administrator.... :)

Thanks!

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RemoteFX licence protocol error when trying to RDP to Win7 guest

August 18, 2012, 12:06 pm

≫ Next: RDP: Losing the connection

≪ Previous: From CORE to GUI -> The source files could not be downloaded.

Added RemoteFX adapter to Win7 Enterprise (SP1) guest and cannot RDP to the guest machine... keep getting an error re. license protcol. If I remove the RemoteFX adapter, I can RDP fine to the same guest.

I've spent a couple of hours researching this issue and have been unable to find an answer, although I have found a couple of posts where folks have experienced the exact same issue.

Any ideas?

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RDP: Losing the connection

October 19, 2012, 4:38 am

≫ Next: Server 2012 Datacenter - Backup to Remote shared folder fails!

≪ Previous: RemoteFX licence protocol error when trying to RDP to Win7 guest

My Server 2012 Standard installtion losing from time to time the RDP connection. Inside the event viewer I found this entry:The Desktop Window Manager has exited with code (0xd00002fe). Details:

- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">


- <System>  <Provider Name="Desktop Window Manager" />   <EventID 
Qualifiers="16384">9009</EventID>   <Level>4</Level>   <Task>0</Task>   <Keywords>0x80000000000000</Keywords>   <TimeCreated SystemTime="2012-10-19T11:14:19.000000000Z" />   <EventRecordID>553</EventRecordID>   <Channel>Application</Channel>   <Computer>server002</Computer>   <Security />   </System>

- <EventData>  <Data>0xd00002fe</Data>   </EventData>  </Event>

The code 0xd00002fe seems to be new for Server 2012, because I was not able to find any information in the internet for this.Anyone knows what happens?

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Server 2012 Datacenter - Backup to Remote shared folder fails!

November 16, 2012, 12:34 am

≫ Next: Windows Update - disgusting, shocked and appauled!

≪ Previous: RDP: Losing the connection

Server 2012 Datacenter, Trying to backup to a Remote shared folder. Backup creates a folder and some files in the remote shared folder, then quits with "Backup has failed to complete. The mounted backup volume is inaccessible".

But why? It can create folder and files, but thinks that it's inaccessible?!

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Windows Update - disgusting, shocked and appauled!

October 19, 2012, 2:03 am

≫ Next: Error converting Server 2012 Core to "Minimal Server Interface"

≪ Previous: Server 2012 Datacenter - Backup to Remote shared folder fails!

its 9:59am here in the UK, the office is busy, people using our systems a lot, file services, application servers, email.... the physical host runs server 2012 - it's just restarted due to updates. I had manually installed these particular updates around this time 2 days ago because there was an updating issue I was working on (it's great that I haven't got to wait until after hours to do my job).... however I thought the server would do its restart out of business hours at the usual 3:00am.....and it hasn't. its just taken down all our virtual servers on this host to do its restart, and there appears to be NO WAY OF STOPPING THE RESTART!!!

I can barely find it acceptable that Windows 8 does this, i'm an IT Admin, I have several apps open to do my job and I normally put my laptop to sleep from one day to the next because there simply isn't enough time in the day to finish dealing with all the open files I have (I do save them first). But I find it completely unacceptable for this to happen with a server....

is there anything at all that I can do to ensure the server does not restart like this during the day? this was NEVER and I mean"NEVER" a problem in past releases of windows!!

I am very very annoyed with this, at least previously MS allowed there to be a postpone option of 10 mins, 1 hour and 4 hours or something.!

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Error converting Server 2012 Core to "Minimal Server Interface"

August 24, 2012, 2:25 pm

≫ Next: Server Manager; Import Dhcp settings as with dns settings from other server

≪ Previous: Windows Update - disgusting, shocked and appauled!

I have the final RTM bits for Windows Server 2012 via Volume Licensing so this is not a beta or RC build. I have a VM with Standard Server and nothing else but what is pushed by WSUS. For troubleshooting I have even removed Antivirus software. The problem that I am having is when I run the PowerShell command

install-WindowsFeature Server-Gui-Mgmt-Infra -Restart

What happens is the task completes successfully and reboots. During boot up the OS goes through the % installing bit and when it gets to 100% it shows me the following error message "Failure Configuring Windows Features Reverting Changes" and removes the GUI that I had just installed. I never get to a login screen or anything until it reboots again and completes reverting the changes. To troubleshoot I have done the -source parameter where I specified the install media directly that I used for building this machine with no difference.

I have completed this PowerShell command successfully on another VM, no problem. Another related problem is that I am having difficulty managing this server remotely since the server seems to be refusing connections even though I set it up properly (I believe) for remote management.

Any ideas?

Thanks,

Mark Ringo

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Server Manager; Import Dhcp settings as with dns settings from other server

November 15, 2012, 2:17 am

≫ Next: DirectAccess Client-2-Client Communication

≪ Previous: Error converting Server 2012 Core to "Minimal Server Interface"

Hi, I was wondering if it's possible to import dhcp settings from 2008 R2 servers to Server 2012 using Server Manager,

I figured out how to do it with DNS and AD... but not with DHCP...

Is this possible?

It is Server 2012 Standard license.

My philosophy - use whatever works for you, be it *nix, OSX or Windows.

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DirectAccess Client-2-Client Communication

November 14, 2012, 3:22 pm

≫ Next: Redirect certain web traffic down direct access link

≪ Previous: Server Manager; Import Dhcp settings as with dns settings from other server

Is it possible to setup a means for one DA client to talk to another DA client?

At this time they can only communicate with servers on the domain but they cannot ping or speak to each other.

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Redirect certain web traffic down direct access link

November 20, 2012, 7:01 am

≫ Next: Cannot promote to domain controller?

≪ Previous: DirectAccess Client-2-Client Communication

We have set up direct access using windows server 2012, which all seems to work well.

What doesn't seem to work is access to other websites / RDP connections that will only work if they are access thru our gateway.

Is there anyway around this?

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Cannot promote to domain controller?

November 20, 2012, 7:44 am

≫ Next: Server 2012 Replica Snapshots

≪ Previous: Redirect certain web traffic down direct access link

We have a new Windows 2012 Server that will be taking the place of our old 2003 SBS install.

Current setup is a 2003 SBS machine running as the only DC.

I can join the 2012 server to the domain, but once joined, I am not seeing the domain accounts when trying to change security on a share for instance...

https://plus.google.com/photos/108071168767145540100/photo/5812918378195642034

The "Locations" drop down doesn't show anything but the local machine.

When I try to add the 2012 server as a Domain Controller:

https://plus.google.com/photos/108071168767145540100/photo/5812917622052673282

https://plus.google.com/photos/108071168767145540100/photo/5812918388696394994

It says it cannot find the Domain controller... But I can ping the DC from the new server:

https://plus.google.com/photos/108071168767145540100/photo/5812917580835792546

And ping the new server from the DC:

https://plus.google.com/photos/108071168767145540100/photo/5812917598305291426

Domain and Forest functional levels are 2003 server

https://plus.google.com/photos/108071168767145540100/photo/5812917612596091138

Server properties for the 2003 box:

https://plus.google.com/photos/108071168767145540100/photo/5812917573002246738

So, what am I missing here, what can I look at, what haven't I tried?

Thanks for your help. (Sorry for the poor image links... Cannot do them as images.)

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