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Exchange 2010 Migration - 2003 compatabillity issues

Posted on 2011-09-19
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Last Modified: 2012-05-12
Hello,
I've been recently migrating from an exchange 2003 to 2010 system, currently running in co-existence. I'm slowly moving my mailboxes over to the new 2010 box.

Every few days or so (maybe once a week) I have an issue where the SMTP connector or routing group between my old 2003 and new 2010 server seems to drop out.  ANy email sent to a user on the new box, and organization either from outside the organization or from the old server, the messages end up in a queue as unreachable.

I end up needing to reboot the new server and everything come sup just fine.  I attempted to restart the information store service, but it just hangs.
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Question by:JamesonJendreas
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7 Comments
 
LVL 7

Expert Comment

by:Exchange_Freak
ID: 36561525
Are you experiencing any backpressure events on the Exchange 2010 server?
Also are these only internal messages that are queuing up?
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LVL 1

Author Comment

by:JamesonJendreas
ID: 36561571
Backpressure events... What\where do these show up?

As for the queuing, it's both internal and external - currently we are still setup where my 2003 box is living on the front end and routes the incoming emails to the 2010.  I have about 15% of my users mailboxes living on the 2010 server.  Emails between those on the same server were OK, but if a user with a mailbox on the 2003 server sent a message to a user on 2010, it'd get queued.  Same with external emails.
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LVL 7

Expert Comment

by:Exchange_Freak
ID: 36561642
Check if you are getting these warnings on the 2010 server
http://technet.microsoft.com/en-us/library/bb201658(EXCHG.80).aspx
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LVL 7

Expert Comment

by:Exchange_Freak
ID: 36561694
Check whether you have multiple routing group connectors created for the mail routing between these two servers.
Remove all if any, and then create the RGC manually by following the steps below:
New-RoutingGroupConnector -Name “RGC 2003-2010¿ -SourceTransportServers “exchange2010server.yourdomain.local” -TargetTransportServers “exchange2003server.yourdomain.local” -Cost 100 -Bidirectional $true

Do you have any third party mail gateway or proxy servers installed on any of the boxes like Mail Marshal?
0
 
LVL 1

Author Comment

by:JamesonJendreas
ID: 36561738
Not really anything in regards to back pressure that I can find - we've got plenty of disk space and we're running about 45% RAM utilization (10.5GB of 24GB).  I am seeing a few events for the transport:
Log Name:      Application
Source:        MSExchangeTransport
Date:          9/19/2011 9:40:02 AM
Event ID:      12028
Task Category: TransportService
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      SeaLion.foxshox.com
Description:
The process with process ID 4116 is holding the performance counter server alive Value=0 SpinLock=0 Lifetime=Type: 1 ProcessId: 4116 StartupTime: 129609221387652690 from instance _total(CFBEE918) RefCount=0 SpinLock=0 Offset=32 and category MSExchangeTransport ServerAlive while running processes are: Processes running are:
1180 Microsoft.Exchange.AddressBook.Service
5904 w3wp
5532 svchost
1568 inetinfo
9248 w3wp
8656 msftefd
1956 dsm_om_connsvc32
7428 mmc
4116 MSExchangeTransport
7264 svchost
1940 sppsvc
524 svchost
756 winlogon
5088 w3wp
3976 Microsoft.Exchange.Search.ExSearch
7252 winlogon
8552 dwm
5472 csrss
2512 MSExchangeMailboxReplication
4284 MSExchangeTransportLogSearch
1916 svchost
9204 gizmo
708 services
2044 svchost
728 lsm
2692 Microsoft.Exchange.AntispamUpdateSvc
6040 w3wp
716 lsass
9192 TrustedInstaller
2284 WmiPrvSE
9572 exfba
4048 Microsoft.Exchange.ServiceHost
8576 explorer
648 svchost
6404 w3wp
488 smss
1472 gservice
3244 Microsoft.Exchange.ProtectedServiceHost
9152 BacsTray
280 LogonUI
9144 MtxHotPlugService
3036 MSExchangeMailSubmission
276 svchost
1260 dsm_sa_eventmgr32
864 svchost
8348 taskhost
664 csrss
4012 mmc
3812 Microsoft.Exchange.RpcClientAccess.Service
656 wininit
1436 DWRCS
1040 svchost
1236 svchost
3400 msexchangerepl
6156 svchost
5564 w3wp
244 svchost
616 svchost
8440 rdpclip
2992 MsExchangeFDS
1612 MSExchangeADTopologyService
1412 dsm_sa_datamgr32
1996 ToolbarUpdaterService
948 svchost
1796 dsm_om_shrsvc32
8096 store
1200 spoolsv
4548 msdtc
1592 mr2kserv
1676 msftesql
600 csrss
3160 MSExchangeThrottling
1724 SMSvcHost
2172 MSExchangeMailboxAssistants
4 System
2760 Microsoft.Exchange.EdgeSyncSvc
0 Idle
 
0
 
LVL 7

Accepted Solution

by:
Exchange_Freak earned 500 total points
ID: 36561769
Check whether you have multiple routing group connectors created for the mail routing between these two servers.
Remove all if any, and then create the RGC manually by following the steps below:
New-RoutingGroupConnector -Name “RGC 2003-2010¿ -SourceTransportServers “exchange2010server.yourdomain.local” -TargetTransportServers “exchange2003server.yourdomain.local” -Cost 100 -Bidirectional $true

Do you have any third party mail gateway or proxy servers installed on any of the boxes like Mail Marshal?
0
 
LVL 1

Author Comment

by:JamesonJendreas
ID: 36561877
No third party gateways or proxies, but I'll loo at the routing group connectors
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