Exchange 2013 Cumulative Updates - help please

Hi All,
Would be great if you could help please: My company setup is:
DC Server 2012
Exchange 2013 on Server 2012 – this had an update to CU3 in May

Im looking to upgrade this to either CU5 or CU6 – can this firstly be done from a previous update? Which CU shall I upgrade to if it can be done?

My dcdiag and repadmin /syncall – is all passed and no errors.

Would I then run below on the DC server?

setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms
setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms


Once this is above is done  – do I need to dismount the database in the Exchange Console? Then run the setup.exe from the Exchange server?

Help would be much appreciated
jag bAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Ganesh Kumar ASr Infrastructure SpecialistCommented:
Perform AD Schema and Domain Preparation for Exchange 2013 CU5 using the following step-by-step instructions

1) If you haven’t having latest version already, download the latest version of Exchange 2013.
2) Next, verify AD health by running DCDIAG and REPADMIN /SYNCALL from a run-as-administrator command prompt on your DC’s.  If issues are found here is a good starting point to troubleshoot active directory.
3) Copy the download to an easily accessed folder on the hard drive of one of your domain controllers (C:\Exch2013CU5\download).  Run the downloaded file in order to extract the installation files, place them in c:\Exch2013CU5

4) open a command prompt as administrator on the DC and prepare the AD schema using the following command from a ‘run-as-administrator’ command prompt:
setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms
setup-prepareschema Note: your account must be a member of Schema Admins

5) Once the schema upgrade is complete, run ‘repadmin /showreps’  from the command prompt to make sure AD replication has completed and any schema mismatch errors have gone away (they will eventually go away on their own).  I also recommend running DCDIAG again to make sure it passes before moving on.

6) Prepare AD by running the following command from a ‘run-as-administrator’ command prompt:
setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms
setup preparead

7) Repeat the AD health checks outlined in Step 5 again, again it may take awhile for the schema mismatch error to go away (this error is normal).

8) If you are installing Exchange 2013 for the first time in your environment, here discussed about Exchange 2013 CU5 update issues.
http://blogs.technet.com/b/mspfe/archive/2014/06/11/exchange-server-2013-cu5-installation-issue.aspx
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
jag bAuthor Commented:
Hi - I have seen above however does not answer my quesitons
0
jag bAuthor Commented:
Im looking to upgrade this to either CU5 or CU6 – can this firstly be done from a previous update? Which CU shall I upgrade to if it can be done?
0
The Ultimate Tool Kit for Technolgy Solution Provi

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy for valuable how-to assets including sample agreements, checklists, flowcharts, and more!

Ganesh Kumar ASr Infrastructure SpecialistCommented:
Upgrading from a previous release of Exchange 2013 to Exchange 2013 CU5 is not different than upgrading from to Exchange 2013 CU3.  I recommend to go for CU5, since CU6 is having issues while installing it on hybrid environment and co-existence environment.

You no need to dismount the database while deploying CU5, it automatically upgrades and does if required. Anyway you will have to restart once after deployment would be sufficient enough.

Few tips for upgrade to CU5:

If you have any UM Language packs installed you have to remove these first before upgrading to Exchange 2013 CU5. To do this you have to use the unattended setup:

setup.exe /RemoveUMLanguagePack: <UmLanguagePackName>
Once removed you can continue upgrading to CU5.

If you have multiple OAB Generation Mailboxes deployed in your organization you have to upgrade the Exchange 2013 Client Access servers first.

If you have multiple Exchange 2013 servers in a DAG, you have to put the DAG member that will be upgraded in maintenance mode first. In maintenance mode all active copies of the Mailbox databases will be moved off of the server and the possibility of moving back will be blocked. Also the Primary Active Manager (PAM) is running on this server will be moved to another DAG member.

The process is as follows:

Put a DAG member in maintenance mode.
Install the Cumulative Update.
Take the DAG member out of maintenance mode.
Redistribute the active Mailbox databases across the DAG.

Hope this helps
0
jag bAuthor Commented:
Is there a big difference from CU3 to CU5?
can I just dismount the database and carry on with the CU5?  or do I have to put it in a certain way eg: maintenance mode
I don't think I have UM Language Packs - any way I can confirm this?
0
Ganesh Kumar ASr Infrastructure SpecialistCommented:
Why you want to dismount the database and update? Instead use maintenance mode.  Basically you dont need to dismount the database for CU5. If you have multiple Exchange 2013 servers in a DAG, you have to put the DAG member that will be upgraded in maintenance mode first. In maintenance mode all active copies of the Mailbox databases will be moved off of the server and the possibility of moving back will be blocked. Also the Primary Active Manager (PAM) is running on this server will be moved to another DAG member.

The process is as follows:

Put a DAG member in maintenance mode.
Install the Cumulative Update.
Take the DAG member out of maintenance mode.
Redistribute the active Mailbox databases across the DAG.

There are enhancements,  CU5 update resolves the issues that are described in the following Microsoft Knowledge Base (KB) articles:
KB2963590 Message routing latency if IPv6 is enabled in Exchange Server 2013
KB2963566 Outlook Web App accessibility improvement for UI appearance in Exchange Server 2013
KB2962439 You cannot sync contacts or tasks in Microsoft CRM client for Outlook in an Exchange Server 2013 environment
KB2962435 CRM synchronization fails if the time zone name of a meeting is not set in an Exchange Server 2013 environment
KB2962434 Slow performance in Outlook Web App when Lync is integrated with Exchange Server 2013
KB2958430 "Some or all Identity references could not be translated" error when you manage DAG in Exchange Server 2013 SP1 in a disjoint namespace domain
KB2957592 IME is disabled in Outlook Web App when you press Tab to move the focus in an email message in Exchange Server 2013
KB2942609 Exchange ActiveSync proxy does not work from Exchange Server 2013 to Exchange Server 2007
KB2941221 EWS integration for Lync works incorrectly in an Exchange Server 2013 and 2007 coexistence environment
KB2926742 Plain-text message body is cleared when writing in Outlook Web App by using Internet Explorer 8 in Exchange Server 2013

KB2926308 Sender's email address is broken after importing a PST file into an Exchange Server 2013 mailbox
KB2925559 Users always get the FBA page when they access OWA or ECP in Exchange Server 2013
KB2924519 "SyncHealth\Hub" folder is created unexpectedly after installing Cumulative Update 2 for Exchange Server 2013
KB2916113 Cannot open .tif files from email messages by using Windows-based applications in an Exchange Server 2013 environment
KB2592398 Email messages in the Sent Items folder have the same PR_INTERNET_MESSAGE_ID property in an Exchange Server 2010 environment
KB2938292 Default apps in Outlook Web App do not work if Exchange is installed in Window Server 2012 R2
0
jag bAuthor Commented:
sorry im new to exchange 2013.
I only have one exchange server 2013 running on server 2012 and one dc server 2012
have you got instructions how to put exchange into maintenance mode?
0
Ganesh Kumar ASr Infrastructure SpecialistCommented:
If you have DAG enabled then you need to put into maintenance mode. If you dont have DAG then dont dismount just perform the procedure to install CU5.

Before performing any changes, ensure you take full backup of your exchange database and keep it handy.

To put a DAG member in Maintenance Mode open the Exchange Management Shell, navigate to the
$Exscripts directory and enter the StartDAGServerMaintenance.ps1 -Server <<servername>> command.

Now install the CU5 binaries as explained before. Once installed the DAG member can be taken out of Maintenance Mode. Open the Exchange Management Shell and enter the StopDAGServerMaintenance.ps1 -Server <<servername>> command from the $Exscripts directory.

The last step is to redistribute the Mailbox database across the DAG. You can use the RedistributeActiveDatabases.ps1 script in the $Exscripts directory to do this, but i dont think so you need this last step.
0
jag bAuthor Commented:
Thank you - I don't have dag enabled, shall I still run the DC and prepare the AD schema ?
0
Ganesh Kumar ASr Infrastructure SpecialistCommented:
Yes you should
0
jag bAuthor Commented:
excellent
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Exchange

From novice to tech pro — start learning today.