Configuring High Availability For VMware VCenter In RMS .

Configuring High Availability for VMware vCenterin RMS All-In-One SetupThis chapter describes the process of configuring high availability for the VMware vCenter in an RMSAll-In-One setup. It provides the prerequisites and procedures required to configure RMS VMs and customizeclusters and test high availability on the Central node and vCenter VM. Prerequisites, page 1 Guidelines and Limitations, page 1 Creating a High Availability Cluster, page 2 Adding Hosts to the High Availability Cluster, page 2 Adding NFS Datastore to the Host, page 2 Adding Network Redundancy for Hosts and Configuring vMotion, page 2 Installing the OVA , page 3 Updating Cluster Configuration, page 3 Migrating Central Node Datastore to NFS, page 3 Testing High Availability on the Central Node and vCenter VM, page 3Prerequisites Hardware—Two Cisco UCS 5108 or UCS 240 servers Software—VMware vCenter should be installed and loaded with ESXi 6.0. Network file system (NFS) data store with minimum 500 GB space should be available with both thephysical serversGuidelines and Limitations To support redundancy, it is necessary for both the servers to be identical.High Availability for Cisco RAN Management Systems1

Configuring High Availability for VMware vCenter in RMS All-In-One SetupCreating a High Availability Cluster A reliable high-speed wired network must exist. Redundancy is available for only Central node and vCenter VM. There will be downtime of around 10 minutes if one host fails. Common NFS data store availability must be ensured for the High Availability feature to worksuccessfully. Common network port group should exist on DVS.Creating a High Availability ClusterTo create a high availability cluster, see Creating a High Availability Cluster.Adding Hosts to the High Availability ClusterTo add Hosts to the high availability cluster, see Adding Hosts to the High Availability Cluster.Adding NFS Datastore to the HostBefore You BeginNFS server details should already be available.Step 1Step 2Step 3Log in to vSphere client.In the navigation pane, expand Home Inventory Hosts and Clusters and select the host and click the Configurationtab.In the Configuration tab, click the Storage option in the Hardware list provided to view the storage options.Step 4Click the Add Storage option to open the Add Storage wizard.Step 5In the Select Storage Type screen, select the Network File System option and click Next.Step 6In the Locate Network File System screen, enter the network file system server details, path, and datastore name. Uncheckthe Mount NFS read only checkbox and then click Next.Step 7In the Ready to Complete screen, review the summary and click Finish.The newly-added NFS datastore information is displayed in the Configuration tab window.Step 8Repeat steps 1 to 7 to add NFS datastores to other hosts.Adding Network Redundancy for Hosts and Configuring vMotionTo add network redundancy for hosts and configuring vMotion, see Adding Network Redundancy for Hostsand Configuring vMotion.High Availability for Cisco RAN Management Systems2

Configuring High Availability for VMware vCenter in RMS All-In-One SetupInstalling the OVAInstalling the OVAIf you have completed the OVA installation, proceed to Updating Cluster Configuration. If you have notcompleted the OVA installation, see the “Preparing the OVA Descriptor Files” section in the Cisco RANManagement System Installation Guide.NoteIf you are configuring high availability in an all-in-one RMS setup: Deploy the setup on any of the two hosts and ensure that only the Central node has the NFS datastore. Complete this procedure, "Installing the OVA", only after you have completed the "All-In-OneRedundant Deployment" procedure provided in the Cisco RAN Management System InstallationGuide.Updating Cluster ConfigurationTo update the cluster configuration, see Updating Cluster Configuration.Migrating Central Node Datastore to NFSStep 1Step 2Log in to vCenter.In the navigation pane, expand Home Inventory Hosts and Clusters and select the Central node.Step 3Right-click on the Central node and click Power Shut Down Guest to shut down the Central node.Step 4Right-click on the Central node after the shut down and click Migrate to open the Migrate Virtual Machine wizard.Step 5In the Select Migration Type screen, select the Change Datastore option and click Next.Step 6In the Storage screen, select the NFS datastore from the list that is displayed and click Next.Step 7In the Ready to Complete screen, check the summary and click Finish.The migration will take some time to complete, verify by viewing the progress bar.Testing High Availability on the Central Node and vCenter VMTo test high availability on the Central node and vCenter VM, follow these procedures: Testing High Availability Failover Testing the vSphere High Availability Reset Testing Accidental Failure on a Host, on page 5High Availability for Cisco RAN Management Systems3

Configuring High Availability for VMware vCenter in RMS All-In-One SetupTesting High Availability FailoverTesting High Availability FailoverStep 1Step 2Log in to vSphere client.In the navigation pane, expand Home Inventory Hosts and Clusters and select individual hosts under the newcluster and select the Virtual Machines tab and verify individual host settings.Step 3Select one of the hosts in the navigation pane, right-click and click Reboot.Step 4After 5 minutes, select the other host and click the Virtual Machines tab. The Virtual Machines tab should display theVM from the rebooted host under the current host. The host that was rebooted should not have any VM under it.Testing the vSphere High Availability ResetBefore You BeginPerform basic failover tests to validate if the vSphere high availability cluster is functioning as expected fora VM failure.Step 1Login to the VM and enter the sudo mode and trigger its failure. Establish ssh connection to the VM.Example:ssh 10.32.102.68The system responds by connecting the user to the SantaClara RDU server.Step 2Use the sudo command to gain access to the root user account.Example:sudo su The system responds with a password prompt.Step 3Enter your individual user password to gain access.Example:[enter your password]The system responds with a command prompt.Step 4Create the VM reset.echo c /proc/sysrq-triggerThe system responds with a command prompt.Step 5Select the VM on which the reset was attempted (after the trigger of the VM reset from the command prompt) and selectthe Tables & Events tab. Click Events.This tab should be updated with information about the CPU of the VM being disabled. Later the vSphere should detectthe VM being disabled, and on missing the heartbeat from the VM, the vSphere high availability should reset the VM.High Availability for Cisco RAN Management Systems4

Configuring High Availability for VMware vCenter in RMS All-In-One SetupTesting Accidental Failure on a HostTesting Accidental Failure on a HostThis procedure describes how to test accidental failure or crash of one of the hosts.Step 1Step 2Log in to vCenter.In the navigation pane, expand Home Inventory Hosts & Clusters and select the HA cluster.Step 3Step 4Identify the host (for example, primary) in which the Central node and vCenter VM is present.Log in to the Cisco Integrated Management Controller (CIMC) console of the UCS server where the high availabilityVMs are present (Central node and vCenter VM).In The Server Summary screen, click on Power Cycle Server to simulate accidental failure. Click Ok in the dialog boxthat is displayed.Return to vCenter.Select the other host (for example, secondary) in the cluster after five to eight 8 minutes and click on the Virtual Machinestab.The Virtual Machines (Central and vCenter VM) tab should display the VM from the rebooted host under the currenthost.Step 5Step 6Step 7High Availability for Cisco RAN Management Systems5

Configuring High Availability for VMware vCenter in RMS All-In-One SetupTesting Accidental Failure on a HostHigh Availability for Cisco RAN Management Systems6

Configuring High Availability for VMware vCenter in RMS All-In-One Setup Testing Accidental Failure on a Host. High Availability for Cisco RAN Management Systems 6 Configuring High Availability for VMware vCenter in RMS All-In-One Setup Testing Accidental Failure on a Host. Title: