Hello all,

Hopefully this is in the right section! :) Last monday we had a serious issue on our main production server. We're running Windows Server 2008 R2 (virtualised through Hyper-V 2008 R2), with iSCSI connections to our PS6000 and PS6100 Dell EqualLogic storage. For some reason that night the server lost connection to an iSCSI disk that contains all the .exe files for SAP causing the program to crash. I'm currently out of ideas and was hoping to get some input from others here =D.

Windows Server 2008R2 SP1 with the latest Windows updates installed.
iSCSI initiator driver version 6.1.7601.18386
EqualLogic firmware: V7.0.9 (R400081)
EqualLogic HIT tools on the server: 4.7.1
CommVault backup was running at that time (always scheduled for the time frame)

ID 29 1:53:26: Target rejected an iSCSI PDU sent by the initiator. Dump data contains the rejected PDU.
<EventData><Data>\Device\RaidPort0</Data><Binary>0000C00001000000000000001D0000C00000000000000000000000000000000000000000000000003F800400000000300000000000000000FFFFFFFF0000000000006803000067FF0000681F000000000000000000000000690071006E002E0032003000300031002D00300035002E0063006F006D002E0065007100750061006C006C006F006700690063003A0030002D003800610030003900300036002D006200340032003100650063003900300035002D0036003200380030003000300066003100650037006500340065006300340064002D006E006C006F006F0073007000720064002D00</Binary></EventData>

ID 32 1:53:26: Initiator received an asynchronous logout message. The target name is given in the dump data.ID 23 1:53:26:All paths have failed. \Device\MPIODisk3 will be removed.ID 16 1:53:26:A fail-over on \Device\MPIODisk3 occurred.ID 15 1:57:26:The device, \Device\Harddisk4\DR4, is not ready for access yet.ID 12293 1:57:27: Volume Shadow Copy Service error: Error calling a routine on a Shadow Copy Provider {b5946137-7b9f-4925-af80-51abd60b20d5}. Routine details IVssSnapshotProvider::QueryVolumesSupportedForSnapshots(ProviderId,8388617,...) [hr = 0x80042302, A Volume Shadow Copy Service component encountered an unexpected error. Check the Application event log for more information.

What caused our SAP process to stop working:

ID 1000 1:57:47: Faulting application name: disp+work.EXE, version: 0.0.0.0, time stamp: 0x53594b41

Any help to put me into the right direction would be greatly appreciated! 

Kind regards,
Dennis Lans

Hello,

I'm afraid, i will greatly appreciate any help on this one.

I'm working on it since 2 days without success (I read many thread without help).

So the fact:

I have 2 AD (2008 R2) on site 1 and 2 AD (2008 R2) on site 2.
I have also 2 files servers (2008) on site 1 and 2 files servers (2008 R2) on site 2.

The files servers run DFS system.
DFS Namespace is host on all AD.
DFS Replication and share are on all files servers.

After update all my servers. I got a big problem.

Communication between files servers and AD of site 2 isn't working properly now.
By this fact, DFSR is not working anymore between site 1 (all seem fine on this site) and site 2.

DFSR on site 2, pop this events all time:

-----------------------------------------------------------------

Event 1202 - Source DFSR

The DFS Replication service failed to contact domain controller  to access configuration information. Replication is stopped. The service will try again during the next configuration polling cycle, which will occur in 60 minutes. This event can be caused by TCP/IP connectivity, firewall, Active Directory Domain Services, or DNS issues.
 
Additional Information:
Error: 160 (One or more arguments are not correct.)

-------------------

Event 1055 - Source GroupPolicy

The processing of Group Policy failed. Windows could not resolve the computer name. This could be caused by one of more of the following:
a) Name Resolution failure on the current domain controller.
b) Active Directory Replication Latency (an account created on another domain controller has not replicated to the current domain controller).

------------------------------------------------------------------

When i check C:\Windows\debug\Dfsr01000.log

20141128 11:10:46.731 1568 CFAD   311 Config::AdConnection::Connect Binding to dcAddr:\\10.98.131.178 dcDnsName:\\strmdc11.m1.streaming.win.p.fti.net
20141128 11:10:46.731 1568 CFAD   143 Config::AdConnection::BindToAd Trying to connect. hostName:strmdc11.m1.streaming.win.p.fti.net
20141128 11:10:46.731 1568 CFAD   162 Config::AdConnection::BindToAd Bound. hostName:strmdc11.m1.streaming.win.p.fti.net
20141128 11:10:46.731 1568 CFAD   199 Config::AdConnection::BindToDc Try to bind. hostName:\\strmdc11.m1.streaming.win.p.fti.net domainName:<null>
20141128 11:11:07.744 1568 CFAD  3371 [ERROR] Config::DsSession::Bind Failed to DsBind(). dc:\\strmdc11.m1.streaming.win.p.fti.net domainName:<null> Error:1722
20141128 11:11:07.744 1568 CFAD   215 Config::AdConnection::BindToDc (Ignored) Failed to bind. hostName:\\strmdc11.m1.streaming.win.p.fti.net domainName:<null> Error:[Error:1722(0x6ba) Config::DsSession::Bind ad.cpp:3378 1568 W The RPC server is unavailable.]
20141128 11:11:07.744 1568 CFAD   199 Config::AdConnection::BindToDc Try to bind. hostName:\\10.98.131.178 domainName:<null>
20141128 11:11:07.744 1568 CFAD  3371 [ERROR] Config::DsSession::Bind Failed to DsBind(). dc:\\10.98.131.178 domainName:<null> Error:87
20141128 11:11:07.744 1568 CFAD   215 Config::AdConnection::BindToDc (Ignored) Failed to bind. hostName:\\10.98.131.178 domainName:<null> Error:[Error:87(0x57) Config::DsSession::Bind ad.cpp:3378 1568 W The parameter is incorrect.]
20141128 11:11:07.744 1568 SCFS   150 [WARN] ServiceConfig::DsPollIsDue Failed to enable lightweight polling. Error:
+    [Error:160(0xa0) Config::AdConfig::ConnectToLocalDc ad.cpp:8399 1568 W One or more arguments are not correct.]
+    [Error:160(0xa0) Config::AdConfig::Connect ad.cpp:8147 1568 W One or more arguments are not correct.]
+    [Error:160(0xa0) Config::AdConnection::Connect adconnection.cpp:377 1568 W One or more arguments are not correct.]
+    [Error:160(0xa0) Config::AdConnection::BindToDc adconnection.cpp:226 1568 W One or more arguments are not correct.]
20141128 11:11:34.280 2156 SRTR   660 SERVER_EstablishConnection Replication group not found. connId:{34D20D20-54F9-4CDD-91A7-498ED802E40B} rgId:{484434EE-17D1-493A-84FE-2AEF7F696990}
20141128 11:11:34.280 2156 SRTR   841 [WARN] SERVER_EstablishConnection Failed to establish an outbound connection. connId:{34D20D20-54F9-4CDD-91A7-498ED802E40B} rgId:{484434EE-17D1-493A-84FE-2AEF7F696990} rgName: Error:[Error:9026(0x2342) SERVER_EstablishConnection servertransport.cpp:662 2156 C The connection is invalid]
20141128 11:11:36.558 2156 SRTR   660 SERVER_EstablishConnection Replication group not found. connId:{BE0E6769-B99B-4F16-83D6-DFDF635CF0E8} rgId:{A134B92B-3851-4690-A46F-BC103B9D74B9}
20141128 11:11:36.558 2156 SRTR   841 [WARN] SERVER_EstablishConnection Failed to establish an outbound connection. connId:{BE0E6769-B99B-4F16-83D6-DFDF635CF0E8} rgId:{A134B92B-3851-4690-A46F-BC103B9D74B9} rgName: Error:[Error:9026(0x2342) SERVER_EstablishConnection servertransport.cpp:662 2156 C The connection is invalid]
20141128 11:11:38.508 2156 SRTR   660 SERVER_EstablishConnection Replication group not found. connId:{411142A7-E0DE-43C5-92BD-7A72EAB63EA0} rgId:{684825B6-8BD3-4FD2-9DDF-3BF8368BFCB3}
20141128 11:11:38.508 2156 SRTR   841 [WARN] SERVER_EstablishConnection Failed to establish an outbound connection. connId:{411142A7-E0DE-43C5-92BD-7A72EAB63EA0} rgId:{684825B6-8BD3-4FD2-9DDF-3BF8368BFCB3} rgName: Error:[Error:9026(0x2342) SERVER_EstablishConnection servertransport.cpp:662 2156 C The connection is invalid]
20141128 11:11:44.467 2156 SRTR   660 SERVER_EstablishConnection Replication group not found. connId:{954E8C2E-2985-4BE5-8776-0751B6426918} rgId:{C7C06C94-36E2-4224-B811-A9970616C6F0}
20141128 11:11:44.467 2156 SRTR   841 [WARN] SERVER_EstablishConnection Failed to establish an outbound connection. connId:{954E8C2E-2985-4BE5-8776-0751B6426918} rgId:{C7C06C94-36E2-4224-B811-A9970616C6F0} rgName: Error:[Error:9026(0x2342) SERVER_EstablishConnection servertransport.cpp:662 2156 C The connection is invalid]

---------------------------------------------------------------

>dfsrdiag dumpadcfg /verbose
[INFO] Computer Name: FILERST13
[INFO] Computer DNS: filerst13.m1.streaming.win.p.fti.net
[INFO] Domain Name: m1
[INFO] Domain DNS: m1.streaming.win.p.fti.net
[INFO] Site Name: Montsouris
[ERROR] Failed to connect to AD for: m1.streaming.win.p.fti.net Err: 1355 (0x54b
)

[INFO] Execution Time: 0 seconds
Operation Failed

>dfsrdiag pollad /verbose
[INFO] Computer Name: FILERST13
[INFO] Computer DNS: filerst13.m1.streaming.win.p.fti.net
[INFO] Domain Name: m1
[INFO] Domain DNS: m1.streaming.win.p.fti.net
[INFO] Site Name: Montsouris
[INFO] Connected to WMI services on computer: filerst13.m1.streaming.win.p.fti.net
[INFO] Invoke PollDsNow() method on filerst13.m1.streaming.win.p.fti.net
[ERROR] PollDsNow method executed unsuccessfully. ReturnValue: 12 (0xc)
[ERROR] Failed to execute PollAD command Err: -2147217407 (0x80041001)

[INFO] Execution Time: 76 seconds
Operation Failed

On ADs site 2, dcdiag /e don't reveal any issue.

---------------------------------------------------------------------

I tried to install hotfix ref on this thread (without help) -> https://social.technet.microsoft.com/Forums/en-US/7d486eb5-6b03-471c-a4dc-65826e712fc3/dfsr-replication-event-id-1202-the-dfs-replication-service-failed-to-contact-domain-controller?forum=winserverfiles

I don't have issue with DNS (nslookup work fine).
Firewall are disable on all servers.

My problem looks a bit like here (but he don't speak about 2008 R2 - old article) -> blogs.technet.com/b/askds/archive/2011/04/08/restrictions-for-unauthenticated-rpc-clients-the-group-policy-that-punches-your-domain-in-the-face.asp

Any help will be greatly appreciate.

Hi All

I have 2 server with win 2012 r2, i am installing the Dfs on those.

the issue is on step, when  i am adding target folder, it give error..What can i do to solve this?

Best Regards, Stanley

All,

I have an existing Storage Spaces pool on a Windows Server 2012 R2.  All drives are HDD, and the pool is divided into three volumes (1 mirror, 2 parity).  I am considering adding some SSD's for the performance increase by implementing tiered storage. However, while I have found quite a few guides detailing how to set up tiered Storage Spaces from scratch, I haven't been able to find one that describes how to add tiering to an existing pool.

My questions:

1.  Can you add an SSD tier to an existing Storage Spaces Pool?  If so, how?

2.  Is it destructive to existing data?  I will abandon the plan if it isn't transparent to existing data.

Thanks in advance!

Hi TechNet,

I have a problem with Offline Files and especially with VPN users.
For VPNusers, theslow-link policy is activated with abackground syncinterval of onehour. But, when Offline Files is syncing, their File Explorer is hanging (not responding) by creating new files/folders, deleting files/folder, or rename files/folders. This happens only in their (redirected)UserData folder or with other DFS shares which are cached locally. In other programs (Outlook or Office 2010) when they save data in the UserData folder exactly the same things happens (not responding).Thisproblemoccursin both theinternal network and viaVPN,sobandwidth isnot the problem. When the sync is finished, everything is working fine again.

I've tested:

- Offline mode with scheduled background sync: problem occurs
- Online mode with manual sync: problem occurs
- Rebuild offline cache database: no effect
- Tested with fresh Windows 8(.1) installations and user profiles: problem occurs
- Monitoring SMB traffic with WireShark: no result
- Montoring Windows 8(.1) clients with procmon: no result
- Tested with full DFS paths: problem occurs
- Disable IPv6: problem occurs
- Disable Windows Search: problem occurs

- Browsing in the Offline Files folder (Sync Center -> Manage Offline Files -> View Offline Files) is very slow (with +- 200 files). This occurs also when Offline Files is not syncing.

Does anyone have anidea how I cansolve this problem?

Thanks,
Bas

(Sorry for my bad English)

When I try to optimize a volume on a server running Windows Server 2012 (R1). I receive the below error. This volume is an ISCSI target to our Compellent SAN. Other Servers don't have an issue with volumes created on the same SAN and I have already ran ChkDsk and it returned no errors. Oddly enough I can run a "Defrag T: /D" but a "Defrag T: /O" returns"Incorrect Function. (0x80070001)" (Incidentally an "Optimze-Volume T -Defrag" also works) 

Any Ideas? I'm stumped!

Command:

Optimize-Volume -DriveLetter T -Verbose

Error:

Hi,

I need to recover files and folders that were deleted by robocopy. I was running a backup of existing photos from one server to another server (Windows server 2008) using the robocopy /mir command. The destination folder had an existing folder in it that contained other photos but because this folder was not in the source folder then it was deleted by robopcoy. The destiantion folder is on a software mirrored dynamic disk. I need to recover this destination folder, but have not had any luck. I have avoided writing any more data to the destination drive to prevent data loss. I am also not able to use the previous version option as this is not enabled.

So far I have tried using recuva, photorec and even a paid utility Active @ Uneraser but they cannot perform a straight forward undelete. I have to go to the deep scan method which doesn't recover the original file and path names. Even then I don't think I am getting the files I need back (there are a lot files to sort through) as the creation dates don't match up with the ones I am after. 

My real question is, does a dynamic mirrored volume allow undelete? So far it doesn't seem so. Is it possible that these files are completely unrecoverable? Any help would be appreciated.

Plan to install Win2012 R2 as DFS server. We hope its advantage of replication can overcome speed issue on WLAN.

We have EMC VNX5300 as a NAS to hold shared folders. Then, branch users open files in shared folders very slow as speed issue on WLAN. We plan to use Win2012 R2 as DFS server to share these shared folder on NAS. What I concern is that as our shared folders are not on DFS server local disks (they are on NAS). So, the performance is perfect or not when both DFS server and EMC NAS work together? why I ask the question is we already have performance issue that I explain above. We want to let them work together to fix the issue. If both can't provider a perfect performance, we can't reach our goal.

Thanks,

George

yxh

Hey Technet,

I have a strange problem while accessing dfs folders. As per below, when i try to access folders hosted on different nodes, im able to access, but when i try to access dfs folders hosted from the same node, it gives me the below error-

But when i try to access resources of different folder, im able to access-

Kindly address this issue.

Regards, Alan.

Good afternoon all,

I've some files where can't take the ownership of. I've tried every and searched allot of technet and the rest of google.

When is ue:

Takeown /f *.* /r /a /d y

i get like 4 succes messages and 16 INFO: Access is denied.

I need to copy/cut the files to new storage, can someone help me please??

I have a Windows Server 2008R2 SQL Server. All updates to date, and a gigantic WinSXS folder. Bottom line is that I need to clean it up. Ok, but when I run Disk Cleanup WITH ADMINISTRATOR PRIVILEGES I still don't have the Windows Update Clean. I also downloaded the updates from the Microsoft website but they say not required for my machine. What's going on? I heard that an update from august 2014 may remove the Windows Update Cleanup?

We have old DFS servers (W2008) on one domain and I have just recently setup new W2012 R2 servers that will act as new DFS servers on a different domain. To tabularized it, let's say the following servers below, note they belong to the same forest:

DFS01.ASIA.WORLD  --> W2008 server on ASIA.WORLD domain

DFS02.ASIA.WORLD --> W2012 Standard server on ASIA.WORLD domain

DFS03.EUROPE.WORLD -->W2012 R2 on Europe domain

DFS04.EUROPE.WORLD -->W2012 R2 on Europe domain

If i configure replication group between DFS01 and DFS02 (both server on same domain), the setup works fine. If i try to configure replication group between DFS03 and DFS04( both server on same domain), it works fine as well.

But i try to setup DFS replication using the DFS new Replication Group Wizard on DFS01 (as source) to replicate on DFS04 (as destination). It throws me an error "The server's operating system version cannot be retrieved. The network path was not found". If i do it the other way around reversing the source and destination, it also gives me the same error.

The first thing that came to my mind is obviously trust relationship between domains. but both domains have been around for quite some time and there had been both users and workstations and servers that are existing on both domains and we have all been using and logging to them everyday.

On both servers, both Domain Admins group of ASIA and EUROPE are already added on both servers as Local Administrators and of course I'm logged on on both server using an account that is member of the Domain Admin group.

had tried searching Google and it only gives me one item about this, but does not contain helpful information.

Can you please direct me on items that i can check? thank you.

Hello,

we setup some NFS shares on HNAS storage box. The connection to this storage is only possible over IPv6 network.

My server with Windows 2012 R2 has the feature 'Client for NFS' installed and a 'showmount -e servername/or IPv6 address' works. I can see all shares when i try to open the storagebox in Windows Explorer with the command "\\servername" or "\\IPv6 address", too. 

My problem is, when I try to mount the share via "Map network drive" or "mount \\servername\sharename *" I get Error 53 - Network path not found.

The share is configured that every server in the IPv6 subnet could access it and it works on Unix machines, but not on Windows. 

It does not matter if i set some option parameters for the "mount" command like sec=sys or anon, everytime error 53.

I don't know, if the share needs special options for Windows. I hope somebody can help.

Kind regards

Guys, I have noticed that on some of my windows VMs, there are Windows Basic Disk with MBR and primary partitions aligned on LBA 0:

BlockSize  DeviceID               PrimaryPartition  StartingOffset  Type

512        Disk #0, Partition #0  TRUE              1048576         Installable File System

512        Disk #1, Partition #0  TRUE              1048576         Installable File System

512        Disk #2, Partition #0  TRUE              1048576         Installable File System

512        Disk #3, Partition #0  TRUE              0               Installable File System

512        Disk #4, Partition #0  TRUE              0               Installable File System

512        Disk #5, Partition #0  TRUE              0               Installable File System

512        Disk #6, Partition #0  TRUE              0               Installable File System

512        Disk #7, Partition #0  TRUE              1048576         Installable File System

512        Disk #8, Partition #0  TRUE              0               Installable File System

512        Disk #9, Partition #0  TRUE              1048576         Installable File System

How is this possible? Shouldn't the MBR be at LBA 0?

Vincent Sprague