Intermittent Issues accessing DFS Share

[Jmuise]

Intermittent Issues accessing DFS Share

Topology - Servers are Windows Server 2003 Standard Edition with all
Service Packs installed (NOT R2)
2 Sites

Site 1
Domain Controller (FSMO roles) Holds DFS root DC1-
Server.example.local
Terminal Server TS1-
Server.example.local

Site 2
Domain Controller Holds DFS Root DC2-Server.example.local
Terminal Server TS2-Server.example.local

I have a root on each DC with the share name example data which have
replication enabled

Namespace looks like this \\example.local\example data\profiles
\\example.local\example data\home folders etc.....

Issue
*Site 2 only
When users are logged onto TS2-Server they have intermittent issues
accessing files within the DFS, It will with no apparent pattern lock
up the folder they are trying to access for wht seems to be a random
period of time. When I right click on a folder and view properties it
causes the folder to hang no matter how long I wait the folder
properties will not appear.

Dfsutil shows TS2-Server is being referred to DC2-Server which is
correct.

Question - Why is it when I move the PDC role from DC1-Server to DC2-
Server the issues reverses sites? Site 1 inherits the mind numbing
slowness while Site 2 issues disappear completely.

I have WINS and DNS installed and working properly.

Any input is greatly appreciated,

I have been working on this issue for about 2 weeks reading (I swear)
every document there was ever created regarding DFS, FRS, DFSUTIL,
FRSDIAG, ULTRASOUND

Thanks!!
Jeff Muise

[Jmuise]

Update:

I am getting System Log Event errors 14526 and 14529 on dc1-server
which holds the fsmo roles.

Event Type: Warning
Event Source: DfsSvc
Event Category: None
Event ID: 14526
Date: 5/31/2007
Time: 11:08:38 AM
User: N/A
Computer: DC1-SERVER
Description:
DFS could not contact the dc1-server.example.local Active Directory.
DFS will be using cached data. The return code is in the record data.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 51 00 00 00 Q...

Event Type: Information
Event Source: DfsSvc
Event Category: None
Event ID: 14529
Date: 5/31/2007
Time: 11:08:38 AM
User: N/A
Computer: DC1-SERVER
Description:
DFS has connected to the dc1-server.example.local Active Directory.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

These events do not show up on dc2-server

Any ideas?

Jeff

[Jmuise]

[Jmuise]

Update:

I am also getting System log errors 14526 dfssvc and 14529 dfssvc -

I can not find any information on these events, the events only appear
on the DC with the FSMO roles. They do not show up on Site 2 dc2-
server.example.local,

Jeff

[teresa...@gardners.com]

On 31 May, 18:46, Jmuise <jmu...@coastalfinancial.ca> wrote:
> Update:
>
> I am also getting System log errors 14526 dfssvc and14529dfssvc -
>

> EventType: WarningEventSource: DfsSvcEventCategory: NoneEventID: 14526

> Date: 5/31/2007
> Time: 11:08:38 AM
> User: N/A
> Computer: DC1-SERVER
> Description:
> DFS could not contact the dc1-server.example.local Active Directory.
> DFS will be using cached data. The return code is in the record data.
>

> For more information, see Help and Support Center athttp://go.microsoft.com/fwlink/events.asp.

> Data:
> 0000: 51 00 00 00 Q...
>

> EventType: InformationEventSource: DfsSvcEventCategory: NoneEventID: 14529

> Date: 5/31/2007
> Time: 11:08:38 AM
> User: N/A
> Computer: DC1-SERVER
> Description:
> DFS has connected to the dc1-server.example.local Active Directory.
>

> For more information, see Help and Support Center athttp://go.microsoft.com/fwlink/events.asp.

>
> I can not find any information on these events, the events only appear
> on the DC with the FSMO roles. They do not show up on Site 2 dc2-
> server.example.local,
>
> Jeff

Hi Guys,
did any of you manage to find a solution to this, because i am also
getting the same 2 events on one of our domain controllers, when
trying to contract the Primary dc.
Cant find any other info. either ????

thanks
teresa

[Dominique]

On 6 Jun., 14:45, teresa.lyw...@gardners.com wrote:
> On 31 May, 18:46, Jmuise <jmu...@coastalfinancial.ca> wrote:
>
>
>
> > Update:
>

> > I am also getting System log errors14526dfssvcand14529dfssvc -

I do have the same issue.
Any help would be appreciated

Dominique

[Ned Pyle [MSFT]]

Two things to be concerned about here:

1) Teresa, Jmuise, and Dominique see 14526 event warnings followed by 14529
anti-event informationals.
2) Jmouise sees slow performance accessing resources

Let me deal with each separately:

For the 14526 warnings - this is usually a pure networking issue between the
server with the warning and the PDC Emulator DC. If there was no 14529
anti-event (saying that it is now working) then I'd troubleshoot this as a
misconfigured firewall setting or something along those lines. The fact that
it's intermittent means that it's more likely a poorly written network
driver, a bad NIC, a bad ethernet cable, a bad switch port, or a bad router.
All of these things need to be examined. If the issue is predictable, a
network trace running on the PDCE and server throwing the warning when the
events are written will be very illuminating.

For the slow performance Jmuise- it *could* also be a network issue; after
all, you have shown that your servers are periodically having issues
connecting to the PDCE. See all of above. but in addition, it sounds like
you might be having OpLock issues in your environment as well. Please take a
look at the recommendations here:

822219 You experience slow file server performance and delays occur when you
work with files that are located on a file server
http://support.microsoft.com/default.aspx?scid=kb;EN-US;822219

and

296264 Configuring opportunistic locking in Windows
http://support.microsoft.com/default.aspx?scid=kb;EN-US;296264

NOTE! Do not (and I mean everyone who ever reads this) use OpLock disabling
as a willy-nilly way to fix issues; oplocking is on by default for very good
reasons, and disabling it should never be necessary unless there is
something wrong with your client machines (more precisely, the 3rd party
software they are running, usually). Test very carefully, and not just for
the issue at hand. For example, disabling OpLocks can cause group policy to
process *very very slowly* unless you make further changes like described
here:

319440 Logon delays over slow links if oplock is not granted for the policy
file in Windows
http://support.microsoft.com/default.aspx?scid=kb;EN-US;319440

So again: disabling oplocks - more a troubleshooting step than a real
solution. Real solution is fixing your clients' wacky apps that are abusing
SMB...

(sorry this took so long to reply to; thanks to Dominique for getting it
back up on the radar scope :-) ).
--

Ned Pyle
Microsoft Enterprise Platform Support
This posting is provided "AS IS" with no warranties, and confers no rights.
Please read http://www.microsoft.com/info/cpyright.htm for more information.

"Dominique" <dominiqu...@gmx.net> wrote in message
news:1181810010....@n15g2000prd.googlegroups.com...

[garryburns]

We have started seeing the same 14526/14529 issues in the last month. Nothing has changed on the DCs apart from standard Microsoft monthly patches.

Forgive me but I don't see how the slowness could be a NIC/driver issue if the problem moves with the PDCE FSMO role. I don't think Jmuise stated he has problems connecting to the PDC just that the slow responsiveness moves to whichever Site hosts the role.

Is this perhaps related to the use of (or not using) DFSUTIL /SiteCosting ?

EggHeadCafe - .NET Developer Portal of Choice
http://www.eggheadcafe.com

[hansmuller]

We do have these same issue over here.
First we thought is was with DFS-FRS, but we keep on having this with DFS-R.
Situation:
- 12 DC W2K3-R2-SP2
- 3 Namespaces on each of our 3 "main" DC's (Each DC hold all 3 name spaces).
- Only on the DC with all FSMO roles this appears.