Microsoft Cluster Server (MSCS) is a group of independent servers that work collaboratively to improve high availability and scalability of clustered roles (formerly called application software and services according to Microsoft Documentation). Clustered servers (nodes) are connected via physical cables and software. If one or more clustered nodes fail over, other nodes will start to provide services in a process known as failover. Clustered roles will be automatically monitored to make sure whether clustered nodes can work properly. If these clustered nodes do not work, these roles will be restarted or migrated to other clustered nodes.
Microsoft Cluster Server also supports Cluster Shared Volume (CSV) functionality. Servers in failover clusters can share the same storage space. For more information, see Failover Clustering in Windows Server in Microsoft Documentation.
Note: | VM Name | Operating System | Configuration Item | Configuration Information |
|---|---|---|---|
| VM-1 (Master) | Windows Server 2016 Standard | Static IP address | 172.24.195.251 |
| FQDN | node1.example.com | ||
| Domain | example.com | ||
| VM-2 (Standby) | Static IP address | 172.24.248.71 | |
| FQDN | node2.example.com | ||
| Domain | example.com |
In the navigation pane of the ZStack Private Cloud UI, choose . On the SAN Storage page, go to the iSCSI Storage tab page, and click an iSCSI Qualified Name. On the Disk tab page, select an iSCSI LUN. Choose . On the displayed Attach VM Instance page, select two VM instance that you need to attach, and click OK, as shown in Figure 1.
Open the console of the VM-1, and go to the Server Manager page. To go to Computer Management, choose , as shown in Figure 2.
Go to the Disk Management details page, right-click Disk 1, select Online. Right-click Disk 1 again to select Initialize Disk. On the Initialize Disk page, click OK to complete creating the partition table, as shown in Figure 3.
On the Server Manager page, click Add Roles and Features. On the displayed Add Roles and Features Wizard page, click Next. On the Select features page, select Failover Clustering. On the displayed Add features that are required for Failover Clustering? page, click Add Features, and then click Next. On the Confirm installation selections page, click Install, and wait until the installation is completed. Finally, click Close to complete adding Microsoft Cluster Server.
On the Server Manager page, choose . On the Failover Cluster Manager page, to go to Validate Configuration Wizard page, click Validate Configuration, as shown in Validate Configuration Wizard.
On the Validate Configuration Wizard page, click Next. On the Select Servers or a Cluster page, choose . Select the subject that you need to test, and click OK, as shown in Select Subject to be Validated.
After you select the subject, click Next. On the Testing Options page, select Run all tests (recommended), and choose to start testing the subject. Only if all related configuration and verification tests are prepared well, Microsoft will support the Microsoft Cluster Server service. After the test is completed, click Finish, as shown in Figure 7.
Note: On the Failover Cluster Manager page, click Create Cluster. On the Create Cluster Wizard page, click Next. On the Select Servers page, add the subject that has passed the test. Click Next to set the names for the failover clusters and the virtual IP address used to access Microsoft Cluster Server, as shown in Figure 8.
After you set the parameters for the failover clusters, click Next to preview the configurations of the failover cluster. After confirmation, click Next, and start creating the failover cluster. After you create the failover cluster, click Finish, as shown in Figure 9.
On the Failover Cluster Manager page, choose . On the Storage details page, right-click Add Disk. On the displayed Add Disks to a Cluster page, select the disk that you need to add, and click OK, as shown in Figure 10.
So far, we have introduced the usage of Microsoft Cluster Server.
Oracle Real Application Clusters (Oracle RAC) is initially designed to provide better database services. After years of development, Oracle RAC is now based on a comprehensive high availability system. This high availability system can either act as the base of a database cloud system, or serve as a shared infrastructure to provide higher availability, scalability, flexibility, and agility for all application softwares in a data center. Oracle RAC adopts a shared disk architecture. In this regard, a volume manager and a file system used for storing database data must support cluster identifying. Oracle Automatic Storage Management (Oracle ASM) is a volume (cluster) manager recommended for Oracle database.
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