Exchange 2010 dag migration to exchange 2013 help

If I want to use the Same mailbox servers and upgrade them to exchange 2013, what is the recommended way? I have a 4 member exchange 2010 DAG.
I was thinking (where A,B,C,D are mailbox servers, A,B are in one site and C,D another active directory site):
A B -------------- C D
Remove A and C from the 2010 DAG, Format and install Exchange 2013 on both, and create a 2013 dag :
A1 ----------- C1
B ------------- D
Then move across all mailboxes from B to A1. Upgrade B and D to exchange 2013 and put them in the DAG
A1 B1 ----------- C1 D1
Does this make sense ? I am trying to do this while having as much high availability as possible during the transition. I have no extra servers so I have to use the existing server hardware.
Anand_N

Hi,
When you want to migrate a DAG from Exchange 2010 to Exchange 2013, you should first remove the mailbox server from the DAG in Exchange 2010 and then move mailboxes from database in this mailbox server to Exchange 2013. After all mailboxes have been migrated
to the Exchange 2013 mailbox server, when the new server is ready, it can become a member of the Exchange 2013 DAG.
Here is an article about migration DAG from Exchange 2010 to Exchange 2013 for your reference.
Migrating an Exchange 2010 DAG to Exchange 2013
http://windowsitpro.com/blog/migrating-exchange-2010-dag-exchange-2013
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make
sure that you completely understand the risk before retrieving any suggestions from the above link.
Best regards,
Belinda
Belinda Ma
TechNet Community Support

Similar Messages

Exchange 2010 dag with only 2 servers

I have my exchange 2010 running on win server 2012 R2 and I have installed another exchange 2010 server with the same FQDN and I want to configure DAG with only these 2 servers. Can I implement DAG with only 2 servers?Can the mailbox,client access and hub
transport roles still work with only 2 servers? If Mailbox and Hub transport could work it will be fine for me as CAS switchover can always be done manually.My main concern is securing data. Any article on how to implement that would be highly appreciated.
Thanks

Hi,
Yes, we can create a DAG with 2Servers and Each server can have upto 100 database depends upon Standard or Enterprise.
Here is a great link that explains about DAG
Exchange 2010 DAG Installation
Mark as Answer/Helpful Post if it helps
Regards.
Naren Neelam, Messaging Consultant, ITBigBang (P) Ltd Www.ITBigBang.Com | Hire Us for Messaging Consulting

Exchange 2010 OWA usage in Exchange 2013

Hi,
I have Exchange 2010 with Sp3 Currently running in environment, Now we have plan to Migrate it to Exchange 2013.... Total number of mailbox is around 26000.
Before Migration we want below things to keep in mind...
1. We want to Use existing exchange 2010 OWA url ( mail.abc.com ), How to accompolish this as it will take couple of months to migrate all mailbox ?
2. Can i use my Existing Exchange certificate to get the above goal done ?
3. What will be the steps and pre-requsite to achieve the Goal ?
An Early reply would be appreciated !!
Amit

Hi Amit
First Change SCP of Exchange 2010 CAS VIP to Exchange 2013 CAS VIP.
Configure external DNS records accordingly.DNS entries should be pointed to Exchange 2013 CAS from Exchange 2010 CAS.
Ensure that you are having a seperate name for CAS array from external ews url
Outlook Anywhere should be enabled and Url should be external URL which points to Exchange 2013.
Authentication for OUtlook Anywhere should be - NTLM
for OWA exchange 2010 - FBA and windows
Point your new CAS server to the firewall or TMG . Now from exchange 2013 all request will be proxied to 2010 users
You cannot use the same certificate . YOu need to add seperate entries as the host name for new servers will vary
Apply a new certificate with all the required site names included in Exchange 2013 CAS.
Whats more you can refer my blog as well
http://exchangequery.com/2014/05/02/things-to-consider-before-configuring-autodiscover-in-exchange-20102013-coexistence-scenarios/
Cheers :)
Remember to mark as helpful if you find my contribution useful or as an answer if it does answer your question.That will encourage me - and others - to take time out to help you Check out my latest blog posts on http://exchangequery.com

Exchange 2010 DAG netowrk replications issues - Causing database copies to be disconnected and resynchronizing.

My
environment is as follows.<o:p></o:p>
We have 3 exchange 2010 servers.<o:p></o:p>
EX1, EX2, DREX1. All servers are exchange 2010 14.2 build 247.5<o:p></o:p>
EX1 and EX2 have two nics, one LAN and one for BACKUP <o:p></o:p>
The dag is configured to to communicate to all three.<o:p></o:p>
The IP for EX1 is 192.168.100.51 - LAN, switch A; 160.100.3.51 - BACKUP, switch B<o:p></o:p>
The IP for EX2 is 192.168.100.52 - LAN, switch A; 160.100.3.52 - BACKUP, switch B<o:p></o:p>
DREX1 is located in another network. It is in another building connected via vpn. The ip
for DREX1 is 192.170.100.51. There is no BACKUP network for this server<o:p></o:p>
(These are not the actual address, but the concept is similar)<o:p></o:p>
The dag network configuration is as follows.<o:p></o:p>
DAGNetworkDR has a subnet of 192.170.100.0/24; Network Interface of 192.170.100.51<o:p></o:p>
DAGNetwork01 (LAN) has a subnet of 192.168.100.0/24; Network Interfaces of 192.168.100.51
and 192.168.100.52<o:p></o:p>
DAGNetwork02 (BACKUP) has a subnet of 160.100.3.0/24; Network Interfaces of
160.100.3.51 and 160.100.3.52<o:p></o:p>
Last Friday, 3/7/14 something happened.<o:p></o:p>
To lead up to that, I noticed the issue because we have DPM 2010 making 15minute express
full backups of our exchange databases when I reviewed the backup jobs, the
exchange database backups using dpm2010 failed all weekend long starting at
11:00pm that Friday.<o:p></o:p>
The issue that occurred was that the database copies went to a status of Disconnected and
Resynchronizing, and after about 30 seconds, the status would show
Resynchronizing.<o:p></o:p>
All attempts to resolve this with the research methods failed. Deleting the
logs and reseeding failed, suspending, then rebuilding failed.<o:p></o:p>
Creating a new database worked, creating a database copy worked, but seeding the copy
failed. All with the same pattern, a status of Disconnected and
Resynchronizing, and after about 30 seconds, and the status would show
Resynchronizing.<o:p></o:p>
The database was mounted on EX2, and seeding to EX1
DREX1 has no issues.<o:p></o:p>
All the DAG networks were in a good status, all Green and all up. I could ping from
EX1 to EX2 and from EX2 to EX1 on both networks fine.<o:p></o:p>
In the middle of the week, about 3/12/14, we resolved the issue. We rebooted EX1, no
fix, but after rebooting EX2, it all resolved. It did a fail over to DREX1. I think it failed to do the failover to EX1. However, when it came back up, it was happy, it was reseeding slowly. After about an hour and a half, it
was all healthy.<o:p></o:p>
We thought it was all good EXCEPT, on Friday night at 11:00pmish on 3/14/14, the same
issue occurred; a status of Disconnected and Resynchronizing, and after about
30 seconds, the status would show Resynchronizing.<o:p></o:p>
The database was mounted on EX2 and seeding to EX1 again. I did not notice the
issue until I performed my review of the backup jobs again on Monday.<o:p></o:p>
Late Monday morning, my boss and I were looking at more articles, but all the same results,
delete the database copy and reseed. Which we knew would not work.<o:p></o:p>
I mentioned that it was strange because the networks were all up. What made us try the next
scenarios was just "luck" I guess. I made a statement about not remembering
which networks DAG replication took place over. Again, we have a LAN and
a BACKUP network. Bother were listed to use replication, so we decided to
disable replication over the BACKUP network in the EMC. Immediately, the
database copies switch to healthy and started seeding.<o:p></o:p>
Later that evening I enabled replication over the BACKUP network and it failed again with
a status of Disconnected and Resynchronizing, and after about 30 seconds, the
status would show Resynchronizing. I disabled the replication over the
BACKUP network and the database copy went back to healthy<o:p></o:p>
The last round of windows updates were pushed to these boxes the Friday before the
issues began, 2/28/14. I don't believe the updates to be the issue. <o:p></o:p>
Can anyone make any suggestions as to where to look? It worked with the BACKUP
network enabled to so long that is eluding me as to why the issues would start
all of a sudden. I am also confident that the switch configuration for the
BACKUP network has not been changed at all in at least 2-3 months. I am
still open to look at the config. Please help if you can.<o:p></o:p>
<o:p></o:p>
Lastly, this is more of a monitoring thing, if anyone can suggest a good way to monitor
the database copies so that I can be alerted when the status changes. We
use WhatsUpGold 16.2 to monitor the devices. <o:p></o:p>
Thanks for any future assistance.<o:p></o:p>
Ian
Ian

You don't have to enable the Replication on Backup Network.
You should collapse your DAG network.
http://blogs.technet.com/b/timmcmic/archive/2011/09/26/exchange-2010-collapsing-dag-networks.aspx
http://blogs.technet.com/b/samdrey/archive/2012/12/04/exchange-2010-dag-collapse-the-mapi-networks-in-a-dag.aspx
Post the result of Below command:
Get-DatabaseAvailabilityGroupNetwork
Cheers,
Gulab Prasad
Technology Consultant
Blog:
http://www.exchangeranger.com    Twitter:
  LinkedIn:
   Check out CodeTwo’s tools for Exchange admins
Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

Exchange 2010 DAG backup & Transaction logs

Hi,
What is Microsoft recommended best practise for Exchange DAG group backup in an environment where there are Active & multiple (2-3) passive copies of the databases?
Is it a good practice to backup transaction logs as frequently as possible in addition to daily full backup ? This I belive will allow to restore the DB to the latest possible state
using last good full backup & transaction logs (Like restoring SQL databases)
Thanks

Hi,
Windows Server Backup can't backup passive copy. If you want to backup both active and passive copies, you need to use DPM or other third party.
Here is a similar thread for your reference.
Exchange 2010 DAG Backup Best Practices
http://social.technet.microsoft.com/Forums/exchange/en-US/269c195f-f7d7-488c-bb2e-98b98c7e8325/exchange-2010-dag-backup-best-practices
Besides, here is a related blog below which may help you.
Backup issues and limitations with Exchange 2010 and DAG
http://blogs.technet.com/b/ehlro/archive/2010/02/13/backup-issues-and-limitations-with-exchange-2010-and-dag.aspx
Hope this helps.
Best regards,
Belinda
Belinda Ma
TechNet Community Support

Exchange 2010 DAG and NIC Teaming | Team broke and now cluster doesn't see the box

Hello everyone,
Question for the group. We are running an Exchange 2010 DAG cluster with four boxes with active/passive DB's on each of the four boxes. We run HP boxes for Exchange and the NIC's are teamed. Now mind you, I arrived at this company well after this environment
was set up so I have inherited everything here.
What has happened is one of the four boxes had an issue after an otherwise normal reboot. We could no longer ping it. Logged into the ILO and was able to log into the server, only to discover its team NIC was messed up and our only option was to rebuild
the team NIC. So I rebuilt the team and gave it the original IP/subnet/gateway it had. The server reboots and we can ping it.
However, when I look in the EMC at Database Management, all the passive copies that were on that DB are showing Failed. Ok, so I suspend the copy and attempt to reseed. No luck. I get the error "The NetworkManager has not yet been initialized"
and it references my machine which had the bad team NIC. Curious, I go look at my Failover Cluster Manager.
Looking at the fail over cluster manager, I notice a X on the cluster and I am showing my server which had the bad team NIC being listed as down. I attempted to start the cluster service for the machine, but it did not work.
Is there something I a missing? What are my exact steps to take to get my cluster configuration working correctly again and see my box? Do I need to remove the box from the DAG, evict it from the cluster, and rejoin it again? If so, can I do this without
affecting the other three machines so users don't notice any outage?
Thanks for any help you can give!

Hi Kyle,
I am Chetan Savade from Symantec Technical Support Team & sorry to know the problem you faced because of SEP.
Symantec recommends that the Exchange server's OS always be protected by the latest available release of SEP. The Exchange server's message flow and Information Store must be protected by a dedicated mail security product, such as Symantec
Mail Security for Microsoft Exchange.
For cluster environment I would recommend to follow this article:
Installing the Symantec Endpoint Protection client to a Windows cluster server
http://www.symantec.com/docs/TECH91154
Installation best practices for Endpoint Protection on Windows servers
http://www.symantec.com/docs/TECH91154
Best Regards,
Chetan

Migrating an Exchange 2010 Generated OAB to Exchange 2013

Hello,
I'm trying to find some information on how to migrate the offline address book from Exchange 201o to Exchange 2013, but I'm having a lot of trouble finding anything at all that is of any use, so I was hoping the experts here might be able to offer some advice.
I have an environment where all mailboxes are on Exchange 2010. Recently I introduced Exchange 2013 into the environment, so we have a co-existence situation. At the moment we run a multi-tenant system that has over 1600 OABs, all assigned to various customers
using Address Book Policies. Soon, I will be starting to migrate mailboxes to 2013, so I was looking at what closing down activity is necessary to remove 2010, with one of the tasks being the transferral of the OAB. I understand the arbitration mailbox bit
and how it works on 2013, equally I understand the 2010 bit and how that works, but it's the transition from using a 2010 OAB to using a 2013 OAB that I don't understand. From what I've read to date it seems like the only option might be to totally recreate
the OABs in 2013. Surely this can't be the only way, can it? This is going to be a mammoth task for me if that's the case. Can I therefore just ask whether anyone knows anything about this in something other than a basic almost default environment where everyone
only uses a single OAB and its an easy task?
I have seen another post here in the forums about this:
http://social.technet.microsoft.com/Forums/en-US/121f282c-1ff4-401d-9257-5dfbf17d4a5c/going-from-exchange-2010-to-exchange-2013-what-about-my-2010-oab?forum=exchangesvrgeneral
I didn't fully understand the answer though. In the article above it states:
"NO you don't have to move, all OAB's have already been created and stored in your OABGEN mailbox and are safe there Updating 12 times a day. The way OABs are stored has changed and its even better. all OABs have gone into <Default Offline
Address Book 2013>."
But that still doesn't detract from the fact that whether there's any kind of sync going on or not, I still have 1600+ OABs generated by a 2010 server, and either I can't uninstall the last 2010 server because of that, or I delete the OAB, in which case
I lose the OAB anyway. Or is the articles trying to state that I don't need multiple OABs because it's all in the default, and that even if I use multiple ABPs then each one should use the default OAB? That doesn't sound right.
I have tested doing it the manual way in a lab (by that I mean creating a new OAB in 2013, then replacing a test user's OAB in the ABP assigned to them). That seems to work, but I don't want to have to do it that way for everyone if I can avoid it.
Any help would be much appreciated on this.

Ok, so I think I've got an answer to my own question here. Based on my own testing to find out how easy it would be to have to do a delete/recreate of the OABs in 2013 (given that I have over 1600 ABPs and corresponding OABs in a multi-tenant environment),
I've got this:
Identify ABPs and which 2010 OABs they use using Get-AddressBookPolicy
Identify which address lists the 2010 OABs use using Get-OfflineAddressBook
Create new OABs (maybe same name but putting '2013' on the end or something)
Switch the OAB defined in the ABP using Set-AddressBookPolicy with the -OfflineAddressBook parameter
Have I got that right? So actually, not too hard really (if I'm right of course), because I don't have to build any new GALs or ALs based on specific extensionAttribute values, because it's not necessary.

Exchange 2010: Virtualized Exchange 2010 Datacenter Migration

We have a virtualized Exchange 2010 production implementation that needs to be relocated to a new datacenter. We will be leveraging SAN based replication and VMWare to cutover.
Some background info:
3 CAS/HUB servers
4 Node DAG across 2 sites (3 production Mailbox servers in the site to be migrated, 1 mailbox server will not move and be left in DR)
Since I need to shutdown 3 mailbox servers in a 4 node DAG, the cluster will go offline and the databases will dismount. I could run a datacenter switchover to preserve service, but I have the OK to take Exchange completely down.
Knowing that:
1) What are the best practices to shutdown and start up all the CAS servers and Mailbox servers (both in prod and DR)?
2) Should I suspend replication or dismount the databases in advance and prevent them from automatically mounting on boot up? Is the StartDagServerMaintenance script relevant in this situation?
Any suggestions on the proper way to go about this is much appreciated. Thanks for reading.

-->1) During the shutdown...would it make sense to turn off the 4th mailbox server in the DAG which is located in our DR site? I'm thinking that leaving the DR mailbox server powered off and powering it up last among the DAG members would prevent
any database copies from being activated in DR.
You already have a planned outage. I suggest you shut down the server in DR and start that after starting
all the 3.
2) To be able to mount a database in a 4 node DAG, I need to have the file share witness and two mailbox servers available first...correct?
Your fileshare witness should be online first otherwise none of your databases will get mounted.
If your DAG contains odd number of members filesharewitness will be ignored, (even number of DAG members will use filesharewitness)http://blog.credera.com/technology-insights/microsoft-solutions/when-do-dags-need-a-file-share-witness/
Thanks, MAS
Please mark as helpful if you find my comment helpful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you.

Exchange 2010 Mailbox Users Cannot Access 2013 Shared Mailboxes

Hi Guys & Girls,
I've a painful issue with my environment which is made up of 1 x 2010 CAS server with 1x 2010 Mailbox server and 1x 2013 CAS server with 1 x 2013 mailbox server.
The users who've yet to be migrated to 2013 and are still on the 2010 server are unable to open shared mailboxes which have already been migrated to 2013.
When trying to access shared mailboxes on the 2013 servers they received the following error:
The configuration of OutlookAnywhere on my two CAS servers is as follows:
RunspaceId : aed28f13-cdd2-4dcf-a0a8-96b8e2518171
ServerName : THCAS1
SSLOffloading : True
ExternalHostname : mail.resourcegroup.co.uk
InternalHostname : mail.resourcegroup.co.uk
ExternalClientAuthenticationMethod : Ntlm
InternalClientAuthenticationMethod : Ntlm
IISAuthenticationMethods : {Ntlm}
XropUrl :
ExternalClientsRequireSsl : True
InternalClientsRequireSsl : False
MetabasePath : IIS://THCAS1.ResourceGroup.co.uk/W3SVC/1/ROOT/Rpc
Path : C:\Windows\System32\RpcProxy
ExtendedProtectionTokenChecking : None
ExtendedProtectionFlags : {}
ExtendedProtectionSPNList : {}
AdminDisplayVersion : Version 14.3 (Build 123.4)
Server : THCAS1
AdminDisplayName :
ExchangeVersion : 0.10 (14.0.100.0)
Name : Rpc (Default Web Site)
DistinguishedName : CN=Rpc (Default Web Site),CN=HTTP,CN=Protocols,CN=THCAS1,CN=Servers,CN=Exchange
Administrative Group (FYDIBOHF23SPDLT),CN=Administrative
Groups,CN=ResourceGroup,CN=Microsoft
Exchange,CN=Services,CN=Configuration,DC=ResourceGroup,DC=co,DC=uk
Identity : THCAS1\Rpc (Default Web Site)
Guid : 71f76f2a-4ee1-4a9a-b2da-06d79e975403
ObjectCategory : ResourceGroup.co.uk/Configuration/Schema/ms-Exch-Rpc-Http-Virtual-Directory
ObjectClass : {top, msExchVirtualDirectory, msExchRpcHttpVirtualDirectory}
WhenChanged : 26/11/2013 16:23:13
WhenCreated : 25/11/2013 16:33:45
WhenChangedUTC : 26/11/2013 16:23:13
WhenCreatedUTC : 25/11/2013 16:33:45
OrganizationId :
OriginatingServer : thdc1.ResourceGroup.co.uk
IsValid : True
ObjectState : Changed
RunspaceId : aed28f13-cdd2-4dcf-a0a8-96b8e2518171
ServerName : THCAS2
SSLOffloading : True
ExternalHostname : thcas2.resourcegroup.co.uk
InternalHostname : thcas2.resourcegroup.co.uk
ExternalClientAuthenticationMethod : Ntlm
InternalClientAuthenticationMethod : Ntlm
IISAuthenticationMethods : {Basic, Ntlm, Negotiate}
XropUrl :
ExternalClientsRequireSsl : True
InternalClientsRequireSsl : False
MetabasePath : IIS://THCAS2.ResourceGroup.co.uk/W3SVC/1/ROOT/Rpc
Path : C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\rpc
ExtendedProtectionTokenChecking : None
ExtendedProtectionFlags : {}
ExtendedProtectionSPNList : {}
AdminDisplayVersion : Version 15.0 (Build 712.24)
Server : THCAS2
AdminDisplayName :
ExchangeVersion : 0.20 (15.0.0.0)
Name : Rpc (Default Web Site)
DistinguishedName : CN=Rpc (Default Web Site),CN=HTTP,CN=Protocols,CN=THCAS2,CN=Servers,CN=Exchange
Administrative Group (FYDIBOHF23SPDLT),CN=Administrative
Groups,CN=ResourceGroup,CN=Microsoft
Exchange,CN=Services,CN=Configuration,DC=ResourceGroup,DC=co,DC=uk
Identity : THCAS2\Rpc (Default Web Site)
Guid : 39c5133f-14cb-4d44-ae9c-69f7fb0fc432
ObjectCategory : ResourceGroup.co.uk/Configuration/Schema/ms-Exch-Rpc-Http-Virtual-Directory
ObjectClass : {top, msExchVirtualDirectory, msExchRpcHttpVirtualDirectory}
WhenChanged : 26/11/2013 16:23:05
WhenCreated : 26/11/2013 12:49:17
WhenChangedUTC : 26/11/2013 16:23:05
WhenCreatedUTC : 26/11/2013 12:49:17
OrganizationId :
OriginatingServer : thdc1.ResourceGroup.co.uk
IsValid : True
ObjectState : Changed
If anyone could offer any help it'd be much appreciated, it's going to take several days to migrate my remaining 2010 users to 2013 which is causing a lot of use complaints.

Hi Seb,
Try the following please.
1- Remove the existing assigned mailbox permission from the mailbox.
2- Assign the permission (Add-MailboxPermission) with -AutoMapping value set to $false.
3- Launch Outlook. Then add the mailbox manually as an additional mailbox from the Account Settings. (Access to the mailbox by only following this step would also work but your user's then will have the same mailbox displayed twice hence
step 1 & 2)
ecsword

Exchange 2010 and UM on Exchange 2013

Hello,
We are going to migrate from Exchange 2010 to Exchange 2013 in a few month, but we want to add UM right now. Can I add UM 2013 now and build everything else later?
Thank you.
Thank you. Eric.

What I'm a little foggy on is if the mailbox needs to be on a 2013 mailbox server for the 2013 UM server to properly deliver the voicemail item.
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications
Once the SIP connection is pointed to 2013, it will handle both the 2013 and 2010 Mailboxes in the Dial Plan, yes.
and dont forget to move the System Mailbox to 2013:
http://technet.microsoft.com/en-us/library/dn169226(v=exchg.150).aspx
Twitter!:
Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Exchange 2010 CAS array with Exchange 2013 Mailbox Servers

Here is our current scenario,
Exchange 2007
2 - Hub Transport Servers
2 - CAS servers (cluster NLB)
2 - Mailbox servers (clustered)
Exchange 2010
2 - Huib Transport Servers
3 - CAS servers (array NLB)
2 - Mailbox servers (1 DAG)
We have not migrated any users to the Exchange 2010 environment yet. We're thinking that at this point we would rather go from 2007 to 2013. Does the 2013 mailbox server work with a 2010 CAS array?

Hi,
As far as I know, CAS array doesn' t exist in Exchange 2013. And OWA and other requests can be proxyed and redirected from Exchange 2013 to Exchange 2010.
For more information, you can refer to the following article:
http://blogs.technet.com/b/exchange/archive/2013/01/25/exchange-2013-client-access-server-role.aspx
Thanks,
Angela Shi
TechNet Community Support

Internal outlook client connectivity in exchange 2010 when coexist with exchange 2013

Hi all ,
on my side i would like to clarify few queries.
Say for instance i am coexisting exchange 2010 with exchange 2013 .Unfortunately if all of my exchange 2013 servers goes down .
Q1 .On that time will the internal outlook users having their mailboxes on exchange 2010 can be able to connect mailboxes without any issues ? In case if they face any issues what kind of issues will they be? Because why i am asking is we should have pointed
the autodiscover service to exchange 2013 during coexistence.
When an user closes and reopens the outlook after whole exchange 2013 environment failure ,outlook will first query the autodiscover service for the profile changes to get it updated on users outlook profile.In such case autodiscover service will not be
reachable and i wanted to know will that affects the internal client connectivity for outlook users having their mailboxes on exchange 2010.
Q2. Apart from outlook internal users connectivity ,what kind of exchange services(i.e owa,active sync,pop,external OA and imap) will get affected when whole exchange 2013 environment goes down during coexistence ?
I have read the below mentioned statement on this awesome blog but still i wanted to clarify with you all on my scenario.
http://blogs.technet.com/b/exchange/archive/2014/03/12/client-connectivity-in-an-exchange-2013-coexistence-environment.aspx<o:p></o:p>
Internal Outlook Connectivity
For internal Outlook clients using RPC/TCP connectivity whose mailboxes exist on Exchange 2010, they will still connect to the Exchange 2010 RPC Client Access array endpoint.
For internal Outlook clients using RPC/TCP connectivity whose mailboxes exist on Exchange 2007, they will still connect directly to the Exchange 2007 Mailbox server instance hosting the mailbox.
Please share me your suggestions and that would help me a lot .
Regards
S.Nithyanandham

Hi Winnie Liang ,
Thanks a lot for your reply.
Scenario 1 : for internal outlook connectivity
We have below settings for exchange 2010 autodiscover.
mail.domain.com - will be the namespace for internal autodiscover URI for all the exchange 2010 cas serves
We are going to have below settings for exchange 2013 autodiscover.
mail.domain.com - will be the namespace for internal autodiscover URI for all the exchange 2013 cas serves
During coexistence mail.domain.com will be pointed to exchange 2013 cas servers . I mean to say if we try to resolve the mail.domain.com it will get resolved in to the exchange 2013 cas servers.
So on such case if anything happened wrong to the new environment or else if entire environment goes down .Do we face any issues while outlook users connect to existing mailboxes in exchange 2010 ?
Because why i am asking is ,on the below mentioned article i have read all the autodiscover request will go via exchange 2013 cas servers during coexistence.That means all the existing mailboxes in exchange 2010 will also have to query exchange 2013 cas
servers for autodiscover request.During the whole exchange 2013 environemnt failure whenever the user tries to close and open outlook .Outlook will first queries the autodiscover service for any changes happened on that particular mailbox and it will try to
get it updated on user profile.
http://blogs.technet.com/b/exchange/archive/2014/03/12/client-connectivity-in-an-exchange-2013-coexistence-environment.aspx
Would it be possible to make the exchange 2010 mailbox users to query only the scp points which belongs to the exchange 2010 cas servers for autodiscover request ?
Scenario 2: For exchange services
mail.domain.com - will be the namespace for all the exchange 2010 services (i.e owa,activesync,external outlook anywhere,pop,imap)
mail.domain.com - will be the namespace for all the exchange 2013 services (i.e owa,activesync,external outlook anywhere,pop,imap)
What about the above services will it get affected during whole exchange 2013 environment failure ?
Note : We are not facing this issue , i hope everything goes well in my environment while doing coexistence i am just asking this question on my own interest?
Regards
S.Nithyanandham
Thanks S.Nithyanandham

Removing mailbox server from Exchange 2010 DAG - Node not fully cleaned up

Hi,
We are in the process of decommissioning some old Exchange 2010 servers. I have just attempted to remove one of our mailbox servers and have received a number of errors, related to its removal from the DAG.
I have already removed the Public Folder replicas and all mailbox database copies. I then tried to evict the server from the DAG and received the following warning:
I then ran the command that was recommended, from another server and in an administrative command prompt:
I have looked in this log on both the server I ran the command on, a CAS server, and the mailbox server itself and can see no evidence of this error 2 that is listed here.
If I run the Powershell command to look at the DAG I cannot see it there any more. I am assuming that this error message might only be an issue if I was planning on re-using this server somewhere else in Exchange or perhaps adding this server to another
DAG. But I just want to decommission it.
Can anyone put my mind at rest as to whether this is a genuine concern or not. If not my next step is to uninstall Exchange 2010 from this server and turn it off.

Hi Belinda,
I get the following:
[PS] C:\Windows\system32>Get-DatabaseAvailabilityGroup
Name Member Servers
Operational Servers
DAG01 {WSR-EX-01, WSR-EX-101, WSR21}
It doesn't look like that server is part of the DAG any more as far as I can see. I just can't explain that error message reported from the cluster command. As far as I can see the server is isolated. I already removed its database copies as a pre-requisite
before removing it from the DAG as per this guide:
http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_27039933.html
I found a nice little script that gave reports on your Public Folder configuration and it highlighted that some of our folders were not being replicated properly across our mailbox servers. This helped me in removing these services from the server.
It is currently doing nothing at this time as far as Exchange Services are concerned.

Exchange 2010 DAG Replication - too much data crossing the wire

I’m replicating 3 Exchange databases from our production active Exchange 2010 server across the WAN to another passive Exchange 2010 server at our DR site.
The Exchange server at the DR site does not have any active databases, i.e. no users are hitting that server.
We are running Update Rollup 8 for Exchange Server 2010 SP1 on both these servers.
The two sites are connected via a 10Mb/s MPLS connection and all the databases are in sync and the replication is working fine.
I have setup a network sniffer at the primary site and see a sizable amount of data crossing the wire from the production Exchange server to the DR Exchange server.
When I query the production Exchange server using the Tracking Log explorer and only choose the EventID ‘RECEIVED’ that should show me the amount of data that has been committed to the database.
If I choose a date range that is the same exact range that I have used to capture the raw data with my sniffer the amount of data the sniffer shows crossing the wire is 10 fold compared to what the Tracking Log Explorer shows.
If I actually count up the data in the LOG files it is about 20% more than what is crossing the wire but that seems to be because the DAG is compressing the data.
If in a one hour timeframe there is 500MB of data crossing the wire to the DR Exchange server the tracking log explorer will show only 50MB.
I would like to know why the data crossing the wire far exceeds the amount of data that is truly being sent/received from the primary exchange server.
Perhaps I’m simply not getting a true view of the amount of data being committed to the exchange server using the Tracking Log Explorer.
Maybe there is a better way to report how much data is being committed to the exchange databases.
Any assistance would be appreciated…

Two things.
1 - you must update Exchange to SP3 and a recent RU. Willard has already provided the links, which point back to my blog if you want to see the lifecycle map for Exchange 2010. SP1 has been out of support since January 2013. Time to move
on pllease
2 - Looking at the tracking log is not sufficient. I would not expect that to show everything.
I want to know what traffic you see as excessive. What ports are you seeing used here?
My money is on content indexing. CI will use additional traffic over and above log repl traffic. Expect CI traffic to be roughly the same again. You can test this by disabling CI on the database or stopping the services on the DR server.
To disable the CI for the database:
Set-MailboxDatabase DBName -indexEnabled $False
Or stop the Exchange search services on the DR box to leave production unaffected.
Again - you need to update Exchange. You would be better to do that now rather than when something breaks and Microsoft support cannot fully assist you since you are not uptodate.    I'll leave discussion of the security issues resolved
in recent Exchange RUs aside.
Cheers,
Rhoderick
Microsoft Senior Exchange PFE
Blog:
http://blogs.technet.com/rmilne
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Decommission Exchange 2010 but keep Hybrid Excahnge 2013

All,
We have finished migrating all users from our Exchange 2010 server to Office 365. We will retain the Exchange 2013 server that was installed during the hybrid configuration for mailbox management, relaying etc. There are no plans to store any many locally
on this server.
Questions:
1. Should the arbitration mailboxes be moved from the 2010 server to the 2013 server? Or can they be removed?
2. Are there any other considerations that need to be taken into account before uninstalling the 2010 sever?
Thanks

Yes, you should move the arbitration mailboxes - they are organizational mailboxes, not mailbox database mailboxes.
Make sure all Exchange resources and operations hosted on this server have been moved to your Exchange 2013 system before you remove Exchange from this server. If you try to remove Exchange (in either the GUI or the command line) and something is
still using this server, you will be alerted that something is still using the server and will be told what it is.
HTH ...

Exchange 2010 dag migration to exchange 2013 help

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