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Exchange 2013 DAG Replication

November 14, 2016, 4:28 pm
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Hi Experts,

I currently have a DAG running on 2 nodes (Windows 2012 R2) with a File Share Witness. The mailbox databases has been seeded successfully to node 2.

My question is:

  1. How do I test to make sure that auto replication of the mailbox database is working between the 2 nodes?
  2. If auto replication is working, how often does it happen?
  3. The .edb files on both nodes does not seem to increase in size after the initial successful seed operation. Shouldn't it increase in size throughout the day?

Kind Regards

GMSS

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Exchange 2013 x TSM

October 5, 2016, 1:14 pm
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I have 2 Exchange 2013 with DAG servers on Windows Server 2012 R2, periodically TDP service Scheduler TSM is in the state of starting and can no longer log on to the server is locked in the "Please Wait" screen.
Has anyone experienced this problem with Exchange and TSM?
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Microsoft Exchange Server 2007

November 15, 2016, 8:23 am
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Hello!
I backed up mailboxes on Microsoft Exchange server 2007 and got backup error: Trouble reading files 
Could anyone suggest me a proper way so that I may never face such issue?  

How to repair exchange server?

Regards


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Exchange 2013 DAG on WS2016, can I use Azure Cloud Witness?

November 15, 2016, 1:09 pm
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I currently have Exchange 2013 and want to have a stretched DAG between to offices.  I am currently running Exchange on WS2012R2, but if I moved to WS2016 would I be able to use Azure Cloud Witness with Exchange 2013?  Or do I need to move to both Exchange and Windows Server 2016 in order to use the Cloud Witness feature?
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DR site Design Options

November 16, 2016, 7:40 am
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Hello

In my primary site, I have 3 CAS servers load balanced and a two node Mailbox DAG. What I would like to do is install Exchange 2013 in my DR site.

The DR site will only be activated and receive traffic if the primary site goes down. So all Exhange traffic stays in the primary site and the DR site is acting like a warm standby.

1)What is the best way to architect this solution? 

2)  Is automatic failover at the CAS and Mailbox server possible or does this have to be a manual switch over?


Thanks

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Exchange 2013 DAG considerations

November 17, 2016, 6:10 am
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Hi all,

I want to know if this is a supported configuration to setup DAG :

- 1 Exchange Server 2013 SP1 CU12  on Windows Server 2012 R2 (first DAG member)

-1 Exchange Server 2013 SP1 CU12 On Windows Server 2012 (Second DAG member) 

your help is greatly appreciated


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Exchange 2013 - WSB Backup of DAG database

November 18, 2016, 9:15 am
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We are running Exchange 2013 CU9 and are having issues with our 3rd party backup software. I am preparing to run WSB just to make sure we have good backups but its been so long since I ran WSB against Exchange I want to verify a couple things.

- I need to run the WSB backup against an ACTIVE copy of the DAG enabled database

- Will backing up against the active DB cause user downtime? ( obvious degradation possible)

Thanks!!

Tom



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Exchange Logs are not purged

November 19, 2016, 5:02 am
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Dear Expert

Recently, we found that our exchange server log partition is going to be full and left only 10 Percent left. We have done full backup by using Symantec Backup Exec with the option to flush the log, but it seems that it didn't flush any of the logs although the full backup is running successful without problem.

we have on premise exchange server running exchange server 2010 SP3 and currently we are in the half way of doing migration to Office 365. Windows are all running Server 2008 R2. Exchange Transport and DB servers are totally separated for every server and all are Hyper V VMs.

Below is our current setup details:

Local Site:

DB01

DB02

Remote Site:

RDB01

RDB02

We have setup DAG between the Local and Remote Site called "DAG01". So, DB01 and DB02 are holding the active copy, whereby the passive copy will be at RDB01 and RDB02. However, due to issue with one of the remote site "RDB02" server that holding the passive copy of the DB01 and DB02, we have shutted down the  RDB02 VM completely as it is not the production anyway and we plan to decommission it after migration to Office 365 . In this case, we failed over the RDB02 to RDB01.

May i know whether because one of the member of the DAG is down, it will cause the Logs are not being flushed even though full backup is being performed daily?

Please advise on what should i do to solve the issue as there is the urgency on the log partition going to fill up soon.

Many thanks

Regards,

H

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Issue when add new server to DAG

November 20, 2016, 2:36 am
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Hello Everyone

         Current I have installation new server windows 2012 and install exchange 2013 CU8 after that I add it to DAG then it show error

            

A server-side database availability group administrative operation failed. Error The operation failed. CreateCluster errors may result from incorrectly configured static addresses. Error: An error occurred while attempting a cluster operation. Error: Cluster API failed: "AddClusterNode() (MaxPercentage=100) failed with 0x5b4. Error: This operation returned because the timeout period expired". [Server: MBX02.test.local]

           please help me fix it

Thanks


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Cannot Add Server to DAG - FQDN Not Found

November 20, 2016, 4:12 pm
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A little background:

Trying to create a DAG between 2 Exchange 2013 CU14 servers. I pre-created the CNO with the correct permissions and disabled the computer account. Verified that the computer object replicated to the various DCs. I have also checked that the dnsHostName attribute is populate correctly on that object.

I simply cannot get any Exchange server to join the DAG. I get the following error:

Failed opening with Microsoft.Exchange.Cluster.Shared.AmGetFqdnFailedNotFoundException: The fully qualified domain name for node 'CUSTOMER-EXDAG1' could not be found.

Unable to find an FQDN for CUSTOMER-EXDAG1

I have tried deleting the DAG, recreating it with a new name. etc.

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CAS Array

November 21, 2016, 5:34 am
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I know CAS Array has been removed from Exchange 2013 but want to know why it has been removed ? what is the advantage we got after removing it ?

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Exchange 2010 Cant Add database copy at DR Site

December 9, 2014, 12:21 am
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Hi Team.

I Had 6 Strech DAG, 3 at HQ and 3 at DR. I have DB1 and DB2. in My DAG3-DR. i want to add mailbox database copy from mounted database at DAG1-HQ.

First I add DB1. seeding proses still ongoing. but when I try to add DB2 database copy. this error show. I already cleanup the log and edb. but still have the same issue

Error:

A source-side operation failed. Error An error occurred while performing the seed operation. Error: Failed to open a log truncation context to source server 'DAG1-HQ.contoso.com. Hresult: 0x80070057. Error: An unexpected error occurred. Error (0x80070057).. [Database: DB2 , Server: DAG3-DR.contoso.com]

Failed to open a log truncation context to source server 'DAG1-HQ.contoso.com. Hresult: 0x80070057. Error: An unexpected error occurred. Error (0x80070057).

Please Help Team

Thanks

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Setting a CAS array

November 22, 2016, 2:16 am
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 Hi,

I' am facing troubles while setting a cas array in exchange 2013 infrastructure.

I have already a cas server installed and fonctionning well, but when i add an other server using Network Load Balacing role i lost active sync connection in some mobile devices and access to owa service. I have already set all virtual directories in the second cas server.

Could you please help me identify the source of the problem.

(pardon my english language)

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Outlook connectivity issue during DAG failover

November 22, 2016, 9:27 am
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I'm new to 2016 Exchange, but here's my problem.  Exchange seems to be running fine in general.  We have two 2016 Exchange nodes (DAG).  In my mind, I'm thinking that when I need to perform maintenance on one node, I should be able to fail over to the second node and then reboot node 1 without impacting production.  It doesn't seem to work that way though.  

First I:

1) Perform “server Switchover” to change the active databases away from the server I want to reboot to a DAG member that is not being rebooted:  

Move-ActiveMailboxDatabase –Server ExchangeServerIAmRebooting

Once I verify that all mail stores are mounted on the other node, I reboot.  I'm expecting Exchange to remain available during the reboot, but immediately we start getting that error in Outlook that says that Exchange is not available (I forgot the exact verbage).

I was given some good advice in another Forum that my problem is probably not a problem with failover (that seems to be working), but a problem with the Outlook clients pointing to the rebooting node.  How do you configure Outlook to "look" at the active Node of the DAG cluster?  We do have a load balancer in our environment if it can be used.  But what is the best practice?

Also, is Failover Cluster Manager the best tool to perform failovers with, instead of the power shell command I have been running?

Thanks in advance!

Neil

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Lync 2013 – RTCSRV Frontend Service failing to start “showing as starting”

November 22, 2016, 5:13 pm
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Hello

       I have 4 server lync front end , but when I shutdown all server and after start again then can not start and show as starting.

       after I surf internet to fix by command as below

       Reset-CsPoolRegistrarState -PoolFqdn lyncpool1.abc.com -ResetType FullReset

       please everyone guide help me how to start normal when shutdown all server

Thanks

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Automatic failover of database in a DAG (Exchange 2010)

November 4, 2016, 12:23 pm
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Hi,

I have a lab setup with 2 Exchange 2010 servers (same AD Site and same subnet) and 2 databases (DB1 & DB2) both part of a DAG named DAG1.

DB1 is mounted on Server1 and DB2 is mounted on Server2.

Now if I shut down or cut the network or disable the exchange services on Server2, shouldn't DB2 be automatically mounted on Server1 and shouldn't my clients continue to work seamlessly?

In any case it doesn't happen as such so maybe I did something wrong or maybe someone can enlighten me on the way a DAG is supposed to work in 2010. 

Thanks in advance!


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Remove member server from DAG show error

November 25, 2016, 7:41 am
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Hello

         When I remove member server from DAG then it show error

There was a problem changing the quorum model for database availability group DAG01. Error: An error occurred while attempting a cluster operation. Error: Cluster API failed: "ClusterResourceControl(controlcode=CLUSCTL_RESOURCE_SET_PRIVATE_PROPERTIES) failed with 0x533. Error: This user can't sign in because this account is currently disabled"

        I have check then see CNO account DAG01 in Active directory Disabled after I enable and remove member server again then it successful ,

        I don't why must enable then it ok

Thanks


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Deploying Exchange 2010 in DR Site

November 27, 2016, 3:47 am
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We have the current setup for Exchange in our DataCenter (DC):

Windows 2008R2 as Domain Controller - File Share Witness

DELL SonicWall ES3300 acting as EDGE Server (SMTP)

2x Exchange 2010 SP1 Servers (HUB, CAS, MB) 

KEMP LoadMaster 2000 as Load Balance Solution

DAG of course for HA

We've already a DR DataCenter connected to the main DC with 2Mbps DIA/MPLS connection.

What is the best practice to have a passive DR setup for Exchange ?

NOTE: We can only have one Exchange Server in the DR DC.

NOTE: our Mailboxes Database size is 1.5TB right now.

I'm ready to respond to any question if needed.


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How can i restore Microsoft Exchange Security Group , Deleted accidentally

November 28, 2016, 11:05 am
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Have a good day

while i'm trying to install exchange server , accidentally i removed the Microsoft exchange security group and faced this error 

Error:

Global updates need to be made to Active Directory, and this user account isn't a member of the 'Enterprise Admins' group.

For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.GlobalUpdateRequired.aspx

i have tried to restore it but nothing fix the problem and i'm tired from this issue , any help about this 

Thanks

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Removing DAG member and re-adding

November 29, 2016, 6:05 pm
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Hi,

We have Exchange 2013 DAG with 8 Servers.  6 have Active copies.  2 Servers have passive copies.  Server with passive copies have attached SAN volumes where DB copies are located.

We are in a situation where we need to remove the Exchange 2013 server from DAG.

because we have to move these server and attached to new storage.  I believe that I may need to do the following: -

Remove all the database copies.

Remove servers from DAG.

Then we will have stand-alone servers.

Shut down servers.

Move servers attached to new storage allocate separate volumes.  (Here I have a question those volumes needs to be exact same volumes with same folder names where Passive copies would be created once again)?

Add servers back to DAG and add database copies to it.

Is there anything else you think I should be doing?

Thanks,

Raman

Raman

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