Hello

Please your help.

We have the following scenario:

A farm of Exchange 2013 Servers, due to a power supply failure, all of the information is corrupted including the backups.

So far a installation in recovery mode has been done, but as long as the backups are not available; when the users configure their Outlook client, the OST file is overwrited and all the mailbox data is gone. All of the users use Outlook as email client.

What we want is to synchronize the mailbox data from the OST files, the normal process would be to convert the OST to PST and the import it into the user's mailbox.

Is there a way where the Outlook clients automatically synchronize the data from the OST to the Exchange mailbox Database without the requirement of the previous OST to PST convertion and import process??

Any help is welcome!

Regards. Cristian V.

Hi Guys,

We currently have Exchange 2013 virtualised on Windows Server 2012 hyper-V. We have two sites and two DAGS. We have 8 Exchange 2013 servers virtualised across two DAGS across two sites.

The issue that I'm having is when I failover a MailboxDatabase across to one specific server, the contentIndexState is in a failed state. However when it fails back to the original server the contentindexstate is healthy.

Checking the event logs under exchange High Availability I see the following warning:

Database **** copy on server **** is to far behind. Copy queue is: 10824 and replay queue is: 0

Error I see is:

Database **** best copy could not be found.

What I did was suspend the copy on the bad server via powershell using the following command:

Suspend-MailboxDatabaseCopy ****

Update-MailboxDatabaseCopy **** -SourceServer ***** -DeleteExistingFiles:$True

Resume-MailboxDatabaseCopy *****

This completes successfully, does take some time however but it completes successfully.

When I try to fail it over I still get the same warnings and errors.

Please help as I'm stumped on this one.

Microsoft direct FSMO query

Exchange 2013 is different from previous versions of Exchange server on architecture, some of the old features have been changed. In this FAQ, I will demonstrate the changes on OAB and list a common issue for your reference.


[Agenda]

1. Differences between Exchange 2007/2010 OAB and Exchange 2013 OAB

a. Generation
b. Distribution
c. Download

2. Common issue and troubleshooting

3. More information


[Difference between Exchange 2007/2010 and Exchange 2013 on OAB]

As we know, OAB in Exchange 2007/2010 has 3 points, OAB files generated from MBX server, distributed to CAS server and downloaded to Outlook client. However in Exchange 2013, these 3 points have a little different from previous servers. For example, the OAB Distribution process doesn’t depend on Microsoft Exchange File Distribution service anymore. Now let me show you the changes of OAB in Exchange 2013.

[OAB Generation]
====================
Exchange 2007/2010:

1. OAB generation server is the specific MBX server which has –server property.


2. If MBX01 is down, OAB generation will be affected.
3. Previous Server using Microsoft Exchange System Attendant service for OAB generation.
4. OAB generation is a scheduled process. By default, OAB files generated at 5:00AM every day.
5. The OAB files which generated from MBX server are located in following path:

C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\OAB\GUID folder

Exchange 2013:

[OAB Distribution]
====================

Exchange 2007/2010:

Previous Servers use Microsoft Exchange File Distribution service to distribute OAB files from MBX server to CAS server. The distributed oab files stored in CAS server.

Exchange 2013:

The OAB files doesn’t distributed to CAS server. The OAB files only stored in MBX server.

[OAB Download]
====================

Exchange 2007/2010:

If Autodiscover works fine, Outlook should use OAB URL to get the OAB files and download it.
If Autodiscvoer doesn’t work, authenticated users can also get the OAB from the CAS server local disk.

Exchange 2013:

Microsoft Exchange File Distribution service has been removed from Exchange 2013 and the OAB files stored in MBX server. CAS server will proxy all OAB download requests to the appropriate MBX server.

Outlook also use Autodiscover to get the OAB URL and download it.


[Common issue and Troubleshooting]

Issue: Outlook doesn’t download OAB files automatically. When I try to manually download OAB, get this error: Task xxx reported error (0x80190194): The operation failed.

Troubleshooting:

1. First, please run following command to check the information of OAB Generation Server.

Get-Mailbox -Arbitration | where {$_.PersistedCapabilities -like “*OAB*”} | ft Name, Servername, Database

Example result as below:

2. Please make sure the authentication settings and URLs are set properly.
3. Try to verify whether the OAB files generated from MBX server successfully. Path as below:

C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\OAB\GUID folder

4. If all of the settings above set correctly, please try to check Autodiscover. Run “Test E-mail Autoconfiguration” to check whether there is anything abnormal on OAB. If has, please search the error code on MS official documents.

5. If this issue is related to local cache, please try to delete the OAB caches from local PC and re-download OAB for testing. Path as below:

C:\Users\Administrator.CU1(different)\AppData\Local\Microsoft\Outlook\Offline Address Books


[More information]

http://blogs.technet.com/b/exchange/archive/2012/10/26/oab-in-exchange-server-2013.aspx

http://blogs.technet.com/b/exchange/archive/2013/01/14/managing-oab-in-exchange-server-2013.aspx

Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

Hi,

We have a pool of CAS servers which are load balanced by a H/W load balancer.

In theory, load balancer should distribute the requests among them.

In practical, is there anyway that I can actually test this ?

I mean when I initiate a request, to which CAS server my request is actually pointing to when I access a mailbox via OWA ?

(OR) In general, how do we test which back-end server is servicing our request which are sitting behind LBs ?

Thank you in advance,

Team ,

I have single cluster with three nodes two in primary Dc andone in DR. From last few days my database get failover automatically on secondary nodes. and i am getting evnt id 306.

Application and service logs ------>Microsoft--->exchange---->high availability ------->operational

Please suggest me the solution

Parent Site

WIN2012R2 DC1 - 10.1.1.2

Exchange 2013 MBX & CAS - 10.1.1.3

DATABASE : MBXDB1

DR SITE

WIN2012R2 DC2- 10.1.2.2

EXCHANGE 2013 MBX & CAS - 10.1.2.3 (MBXSRV2)

DB NAME MBXDB2

ECP, OWA Works fine with Parent Site, the DR site server sees parent server databases but parent server not synching or seeing DR Exchange server. 

While executing Get-mailboxdatabase -Status | select name, mounted from DR site exchange server in EPS.

NameStatus 
-------------
MBXDB1mounted
MBXDB2mounted 

but when checking from Parent site.

Name
----

MBXDB1mounted
MBXDB2

WARNING: Exchange can't connect to the Information Store service on server MBXSRV2.domain.local. Make sure that the
service is running and that there is network connectivity to the server. 

Checked the services, running on both servers. Any idea what could be the issue? 

Regards, Ganesh, MCTS, MCP, ITILV2 This posting is provided with no warranties and confers no rights. Please remember to click Mark as Answer and Vote as Helpful on posts that help you. This can be beneficial to other community members reading the thread.

Hi All

Help me to resolve server (all database) search catalogue availability monitor.

I am facing a search catalogue "Unknown" issue for newly created copy database and also on same mailbox server"SearchCatalogAvailabilityMonitor" showing unhealthy for all database.

For the newly created copy database I tried to reseed / update search index catalogue by using below PowerShell command but it stopped with below mentioned error.

[PS] C:\Windows\system32>Update-MailboxDatabaseCopy -Identity DBTest\MBX1 -CatalogOnly

 Confirm

Are you sure you want to perform this action?

Seeding database copy "DBTest\MBX1".

[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Help (default is "Y"): y

Confirm

The mailbox database copy 'DBTest\MBX1' has failed to update from server . Do you want to clean up that update

request now? Seeding cannot be requested for the same database copy until the failed request has been cleaned up by the

server, which should automatically happen within 15 minutes.

[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Help (default is "Y"): y

WARNING: Seeding of content index catalog for database 'DBTest' failed. Please verify that the Microsoft Search

(Exchange) and the Host Controller service for Exchange services are running and try the operation again. Error: There

was no endpoint listening at

net.tcp://localhost:3863/Management/SeedingAgent-64310690-DEA4-47E1-9860-E8B2AC4E292A12/Single that could accept the

message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for moredetails..

[PS] C:\Windows\system32>Get-MailboxDatabaseCopyStatus -Identity DBTest

Name                                          Status          CopyQueue ReplayQueue LastInspectedLogTime   ContentIndex

                                                             Length    Length                             State

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

DBTest\MBX2                              Mounted         0         0                                  Healthy

DBTest\MBX1                              Healthy         0         0           2/8/2015 3:09:49 PM    Unknown

DBTest\DRMBX1                            Healthy         0         0           2/8/2015 3:09:49 PM    Healthy

Same timeResult of get-serverhealth -server MBX1, also please note all database (Copy) search is in unhealthy condition and newly created copydatabase have no entry for "SearchCatalogAvailabilityMonitor".

Reg

Aditya

The latest plan for migrating from 2010 to 2013 is to create a new 3 member DAG with all the active mailbox databases on the 2 DAG members inside our office and the 3rd DAG member hosting passive copies in a remote data center.

We want to keep the active database copies on the LAN since most email activity during office hours is generated by Outlook clients on the LAN and having all databases except one of them kept local to the LAN should reduce traffic across the WAN due to less database replication happening.

The DAG member in the data center will also do the additional role of CAS server for remote users accessing their mail from the Internet.

If there is a power outage requiring the all servers in our local office including these two DAG members to all be quickly powered down before UPS batteries die, what is going to happen with a 3 member DAG vs 4 member DAG?

I assume that with a 4 member DAG with FSW in the data center, the databases in the DAG should all become active automatically, but with a 3 member DAG, with a power outage in the office containing two DAG members, we would have to access the data center server using an outside internet connection (mobile data plus VPN etc)  and perform some kind of action to manually activate the databases there.   Is that true?  Anything else to consider about this layout?

We have to weigh the costs of adding an additional server to be the 2nd DAG member in the data center increasing the total multi-site DAG from 3 to 4 members and then also increasing the replication traffic on the WAN in the process vs saving that expense and having reduced replication traffic, but having the longer outage, and extra work to manually activate the passive databases in the data center.

Dear all,

I was looking to confiigure cas in HA using NLB in exchange 2013. I have seen that arrays has been removed and everyone is saying now ha using  nbl is easiy. Does it mean we just have to install nbl and configure with virtual ip and fqdn and configure virutal directory pointing to valid url for all virtual directory that is all. No need to create arrays. is that soo. 

Hi,

I'm looking for a redundant solution with Exchange 2010.

Here is the design :

AD Site A
CASHUB01 (CAS and HUB roles)
MAILBOX01 (Mailbox role)

AD Site B
CASHUB02 (CAS and HUB roles)
MAILBOX02 (Mailbox role)

A DAG is configure with servers MAILBOX01 and MAILBOX02.
A NLB CAS Array is configure between servers CASHUB01 and CASHUB02. 

When users connect to CASHUB02 with outlook, it prompts for password.
Is it because CASHUB02 is not in the same AD Site as CASHUB01?
If yes, how can i correct this?

replication failed on our cluster giving status "unknown" with the following popup.

Cant seem to figure out where to go from here cannot find reference to that anywhere. 

HELP!

Hi All,
I have a query regarding database portability in Exchange 2010 server.

I have restored a Journaling Database which is ~ 350 GB and just wanted to check if i dismount the prod database which does not have any data in the DB and only journlaing mailbox is pointed to this DB , can i move restored DB .edb file to the production server physical location and mount it, will the journaling account will connect to this restored database which i have copied. or do i have to run any command which will reconnect the mailbox. 

BR/Deepak

Exchange 2013 CU7 on Windows 2012.

I have a 3 server DAG (newly created) and the EAC lists each server with Is Operational = Yes.

When I run Get-DatabaseAvailabilityGroupNetwork on any of the 3 servers I get:

[PS] C:\>Get-DatabaseAvailabilityGroupNetwork
Could not load file or assembly 'Microsoft.Exchange.Data, Version=14.0.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
    + CategoryInfo          : NotSpecified: (:) [Get-DatabaseAvailabilityGroupNetwork], FileNotFoundException
    + FullyQualifiedErrorId : [Server=<servernameremoved>,RequestId=11e182c9-cb4a-4f48-b985-dc4be7ef97ef,TimeStamp=2/23/20
   15 10:00:53 PM] [FailureCategory=Cmdlet-FileNotFoundException] 586ECE82,Microsoft.Exchange.Management.SystemConfig
  urationTasks.GetDatabaseAvailabilityGroupNetwork
    + PSComputerName        : <servername FQDN removed>

Any suggestions?

Hi All,

Scenario: two node 2013SP1 DAG in single site with three NICs: MAPI, Replication and Backup Networks.

Obviously the backup network is currently disabled for cluster usage. The backup team has requested an administrative access point on the backup network.

My concerns: if I add an additional IP address to the CNO on that network, will this interfere with the cluster functionality? The backup subnet is not included in any AD site configuration. Should I define the backup network as an additional MAPI network and add the subnet to the AD site? Will the cluster service even activate this address, or just treat it as a multi-site setup?

Or am I overthinking this and adding an additional IP address in a different subnet will have no effect?
How are others handling this situation (third party Backup application that requires an administrative access point)?

Thx in advance!
Rgds - M.

Hi,

I have a domain, let's call it a.com with 2 sites, let's call the sites siteA and siteB. I have 2 CAS-servers installed, one in each site. Autodiscover is defined with the two CAS-addresses and the internal URL's are the same for both servers, registered with both addresses in DNS.

The config works OK, BUT I would like to have control of which CAS a clients connects to, I want the clients to connect to the CAS in the same site as the client itselv. Now the clients sometimes connects to the CAS in the opposite site, depending on which address is returned first from DNS.

How can I control this so the client connects to the nearest CAS if this is running? Only if the CAS is down I want to connect to the other CAS.

Thor-Egil

Do any have Datacenter Disaster Recovery plan template for Exchange server 2010?

How we can recover a datacenter in case any disaster occur?

Hi All,

We have a 6 MBX & 4 CAS environment under one DAG. I have just now created a new DAG (DAG2) in the same environment created a DB mounted it perfectly. After this i moved a test mailbox from DAG to DAG2 hosting another DB. After this movement the account is unable to connect.

Can someone help? Below brief Description:

FrontEnd:

CAS 1,2,3,4 

DAG(Prod)

MBX:-

MBX1,2(Copy),3,4(Copy),5,6(Copy)

DAG2(Test)

MB1,2(Copy)

Apoorv Mehrotra

Hello,

i'm just install a DAG for exchange 2013 CU7 with 2 mailbox server ( windows2012) and 1 Filesharewitness (windows 2012).

DAGEXCHANGE is the name of my DAG.

DAG seems to work, but on 2 Mailbox server, i have this error on server manager console.

"

DAGEXCHANGE, failure of updating the configuration with the following error: Failed to retrieve metadata from the server due to the following error: WinRM can not process the request.
The following error is produced when lu'ilisation Kerberos authentication: Can not find the DAGEXCHANGE.mydomain.com computer. Verify that the computer is on the network and that the provided name is spelled correctly

"

unfortunately I do not find information about it. Can you help me please 

thank you in advance