Sql server 2012 high availability setup,wiley custom learning solutions,safety officer training books - New On 2016

16.05.2014
One of the topics that I think deserves a lot of focus, is the new AlwaysOn technology for SQL Server 2012.
Having an understanding of the purpose for this new technology, lets look at how this can be used to benefit those customers who have decided to use Microsoft Dynamics AX 2012. The focus for value, in what AlwaysOn for SQL Server 2012, brings to AX 2012 is around High Avalability. Now we can have two SQL Server 2012 instances, helping us run, both active, the total solution for a Microsoft Dynamics AX 2012 customer.
As the above image suggest, part of the design is deciding which databases will reside on which production SQL Server instance. No matter what you think of System Center 2012 SP1, if you decide to use System Center VMM 2012 SP1 to manage your Private, Hybrid or Hosted Cloud (and you should) you will find that with some features will create dependencies on System Center VMM 2012 SP1.
In this blog I will walk you through the step to create a High Available (HA) System Center 2012 SP1 environment. The quorum settings for the VMM cluster and the SQL cluster are based on Node and File Majority. If you need guidance on how to set up a Scale Out File Server check this great blog by Jose Barreto.
You can designate separate service accounts for each SQL Server 2012 service and you will create additional Run As accounts in System Center VMM 2012 SP1. After repeating these steps on SQL2 open the Failover Cluster console from the Server Manager.
The Failover cluster wizard performs several tests to check if SQL1 and SQL2 can be clustered.
Create a firewall rule on SQL1 and SQL2 that allows inbound TCP port 1433 and TCP port 5022. In the server configuration tab of the installation wizard provide the domain service account and password we created earlier.
Logon to SQL1 and open SQL configuration and services, right click SQL Server service and select properties.
We need to enable the Availability Group before we can use the Availability Group Listener. Open the properties of the SQL server, select the Logging tab and verify that the recovery model is set to Full.
In the SQL Server Management Studio right click Availability Groups and start the New Availability Group Wizard. The previous New Availability Group wizard created a backup on the file share and restored a database copy on SQL2. System Center VMM 2012 SP1 requires the Deployment Tools and the Windows Preinstallation Environment features from the Windows Assessment and Deployment Kit (ADK). Before we start the System Center VMM 2012 SP1 setup add the VMM service account (hypervnuSVCVMM) to the local administrators group on server VMM1 and VMM2. Logon to server VMM1 as a domain administrator and run the System Center 2012 VMM SP1 setup. The cluster configuration screen allows you to specify the System Center VMM 2012 SP1 cluster name and IP address (in this example VMM). When the object is created and the permissions are applied we can continue with the System Center 2012 SP1 setup wizard. A service connection point (SCP) could not be registered in Active Directory Domain Services (AD DS) for the VMM management server.
A high available System Center VMM 2012 SP1 installation is configured as a generic cluster service.
The service connection point for System Center VMM 2012 is a child object to the failover cluster virtual network name account that was created in the previous step. This command creates a service connection point object as a child object to the Client Access Point in Active Directory.
If you skip this step and install the second VMM server in the cluster the setup wizard will result with the same error but a different command to resolve the issue.
The issues can be prevented by applying the create computer objects permissions to the vmmcluster failover cluster virtual network name account before running System Center VMM 2012 SP1 setup.


Before adding the second node to the VMM cluster it is a good idea to test the availability of the database in the SQL Server AlwaysOn Availability Group. Next an initial backup of the database must be performed before we can add it to the availability group. The Add Database to Availability Group wizard will display all available databases and if they meet the requirements to be added to the Availability Group. With the VMM database in an operational SQL Server AlwaysOn availability Group we are ready to add the second node to the System Center VMM 2012 SP1 cluster. Open a Failover Cluster manager console on VMM2 and move the VMM clustered service from VMM1 to VMM2. Now the management wants to move to the SCVMM database to the SQL Server AlwaysOn Availability Group. The only thing i can find is that they recomment a seperate domain account as service account. I know for older versions this isn’t supported and for SQL server 2012 it is supported. This means, instead of having a full powerhouse server, just waiting for it's active cousin to crash - both can be used, and each being the target of AlwaysOn failover for specific database.
I will end with there is so much going on in the Ecosystem right now, including the upcoming Spring Decisions 2012. Some say System Center VMM 2012 is a must for any serious Private Cloud, others say some of its features should have been incorporated into the Windows Server OS. The design exists of a Hyper-V cluster for physical redundancy, a guest based SQL Server 2012 AlwaysOn Availability Group for database redundancy, a guest based System Center VMM 2012 SP1 failover cluster for VMM redundancy and a Scale Out File Server (SOFS) for Library redundancy.
When you add the feature, Server Manager allows you to specify an additional path where the files are located. The share will be used to create a backup of the database by SQL1 and a restore of the backup on SQL2.
When the wizard runs you will probably end up with an error on the Create Availability Group Listener step. The DNS name may have been taken or have a conflict with existing name services, or the WSFC duster service may not be running or may be inaccessible. The real cause for this issue is that the SQL cluster virtual network name account does not have permissions on its OU in Active Directory to create computer objects.
We need to delete the backup file on the file share and the restored database on SQL2 before running the New Availability Group wizard again on SQL1. High Availability in System Center VMM 2012 SP1 also uses Windows Server 2012 failover clustering. You need to specify a name and IP address for the Cluster (the Client Access Point will be created later by the System Center 2012 SP1 installation wizard). In a high available System Center VMM 2012 SP1 environment multiple servers need to access this encrypted data.
In the Configure service account and distributed key management screen specify the VMM service account and password we created earlier. Entering the common name without the ending dot will result in a successful validation by the setup wizard.
It is not supported to host a Virtual Machine Library on a System Center VMM 2012 SP1 node in a high available environment. Ensure that the user has permission, the VMM service is installed properly, and cluster resources can be brought online. When you open the failover cluster manager on VMM1 you will notice that the VMM clustered service is in the status failed.
After the initial backup is completed right click the Availability Databases entry of the Availability Group (in this example SQL) and select Add Database.
Open the Failover Cluster Manager on SQL1, right click the SQL clustered service, select move and select node SQL2.
But the Failover Cluster manager on VMM1 will display the VMM clustered service in a failed status. The SQL Server Availability group is now configured correctly for System Center VMM 2012 SP1.


The setup wizard will detect that VMM2 is part of a Failover Cluster and prompt you to add this server as a node. In the Configure service account and distributed key management screen specify the password for the VMM service account.
With all servers in place you now own yourself a high svailable System Center 2012 SP1 environment, with high availability at the host level, the database level and the VMM level.
It is possible to create the Availablity Group in SQL afterwards but with VMM you are in the dark. Now that SQL Server 2012 is here, and we are a few months beyond it's release-to-manufacturing, its time we talk about all the great features it brings to Microsoft Dynamics AX 2012 today!. This is a high value point in terms of SQL Server usage, and something that Microsoft really did right with this release.
Early adopter of Windows Server 2012 were forced to design their environment without System Center VMM and are facing some challenges when to want to move their management functionalities to System Center VMM 2012 SP1. This blog describes to steps to configure the SQL AlwaysOn Availability Group and the System Center VMM Failover Cluster. Include the SQL Server updates, select SQL Server Feature Installation and specify what features you want to install. SQL Server 2012 SP1 AlwaysOn Availability Groups replicates databases that are stored on local disks on the SQL Servers. We will manually delete this temporary database when System Center VMM 2012 SP1 has created its database in the Availability Group. To resolve the issue open the Active Directory Users and Computers console right click the Organizational Unit that contains the SQL Server computer accounts and the SQL Server cluster virtual network name account and select properties.
In the Database configuration screen specify the SQL Server 2012 AlwaysOn Availability Group DNS listener we created earlier (in this example SQL).
The setup wizard allows you to specify a container in Active Directory to store the encryption keys.
Select the security tab and give the VMM Service account created earlier (in this example hypervnuSVCVMM) Full control on this object and all descendant objects. The setup wizard will prevent you from doing so by greying out the Library configuration screen.
If a SCP is not registered, VMM consoles on other computers will not be able to connect to this VMM management server and deploying a Hyper-V host to a bare-metal computer will not work. When the clustered service is started an additional failover cluster virtual network name account (in our example VMM) is created in the same Organization Unit. Before we can resolve this issue the VMM clustered service must be successfully started (which ensures the required object in Active Directory is present). To prepare the VMM database for the availability group the logging model must be adjusted to Full. When you compare the Logins between SQL1 and SQL2 you will notice that SQL2 does not have a login for the VMM service account (in this example hypervnuSVCVMM).
The database already contains the settings for this domain account so other settings do not need to be changed.
This means that, as the example shows, Microsoft Dynamics AX Databases can be loaded on one target production instance of SQL Server 2012, while the rest of the production databases can be loaded on another. You could use a Windows Azure Virtual Machine to provide the file share for the SQL and the VMM cluster node and file majority.
The select databases tab display all the databases on SQL1 and if these databases meet the prerequisites to be added to the availability group. Logon to VMM1 as a domain administrator and open the Failover Cluster Console from the Server Manager. The WSFC service may not be running or may be inaccessible in its current state, or the values provided for the network name and IP address may be incorrect, check the state of the WSFC duster and validate the network name and IP address with the network administrator. If you have not changed the default port in SQL Server it is not necessary to enter the port number in the wizard.



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