Veritas High Availability 7.4.2 Solution Guide for VMware - Linux

Last Published:
Product(s): InfoScale & Storage Foundation (7.4.2)
Platform: Linux
  1. Introducing the Veritas High Availability solution for VMware
    1. How the Veritas High Availability solution works in a VMware environment
      1.  
        How the Veritas HA Plug-in for vSphere Web Client works with VCS
      2.  
        How the VMwareDisks agent communicates with the vCenter Server instead of the ESX/ESXi host
      3.  
        Getting started with vCenter-integrated Veritas High Availability solution
      4. Getting started with the VIOM-integrated Veritas High Availability solution
        1.  
          About administering high availability with VOM
      5. Understanding Veritas High Availability terminology
        1.  
          Understanding operation names
      6.  
        Supported VMware versions
      7.  
        Important release information
  2. Deploying the Veritas High Availability solution
    1.  
      Managing storage
    2.  
      Installing the Veritas High Availability guest components
    3.  
      Upgrading Veritas High Availability guest components
  3. Administering application availability from the vSphere Client
    1.  
      Accessing the Veritas High Availability view
    2. Administering application monitoring from the Veritas High Availability view
      1. Understanding the Veritas High Availability view
        1.  
          To view the status of configured applications
      2.  
        Configuring a cluster by using the VCS cluster configuration wizard
      3.  
        To configure or unconfigure application monitoring
      4.  
        Adding a system to a VCS cluster
      5.  
        To start or stop applications
      6.  
        To switch an application to another system
      7.  
        To add or remove a failover system
      8.  
        To suspend or resume application monitoring
      9.  
        To clear Fault state
      10.  
        To resolve a held-up operation
      11.  
        To determine application state
      12.  
        To remove all monitoring configurations
      13.  
        To remove VCS cluster configurations
    3.  
      Administering application monitoring settings
    4. Administering application availability using Veritas High Availability dashboard
      1. Understanding the dashboard work area
        1.  
          Aggregate status bar
        2.  
          ESX cluster/host table
        3.  
          Taskbar
        4.  
          Filters menu
        5.  
          Application table
      2. Accessing the dashboard
        1.  
          Prerequisites for accessing the dashboard
        2.  
          How to access the dashboard
        3.  
          Who can access the dashboard
      3.  
        Monitoring applications across a data center
      4.  
        Monitoring applications across an ESX cluster
      5.  
        Searching for application instances by using filters
      6.  
        Selecting multiple applications for batch operations
      7.  
        Starting an application using the dashboard
      8.  
        Stopping an application by using the dashboard
      9.  
        Entering an application into maintenance mode
      10.  
        Bringing an application out of maintenance mode
      11.  
        Switching an application
      12.  
        Resolving dashboard alerts
  4. Appendix A. Roles and privileges
    1.  
      About the roles and privileges assigned in vCenter
    2. Assigning customized privileges to VMwareDisks agent
      1.  
        About assigning privileges to VMwareDisks agent
      2.  
        Creating a role with customized privileges for VMwareDisks agent
      3.  
        Creating an ESX user account
      4.  
        Integrating an ESX user account with Active Directory
      5.  
        Assigning a role to an ESX user account
  5. Appendix B. Troubleshooting
    1.  
      Agent logging on virtual machine
    2. Troubleshooting wizard-based configuration issues
      1.  
        Veritas High Availability Configuration wizard displays the "hadiscover is not recognized as an internal or external command" error
      2.  
        Running the 'hastop -all' command detaches virtual disks
      3.  
        Validation may fail when you add a failover system
      4.  
        Adding a failover system may fail if you configure a cluster with communication links over UDP
    3. Troubleshooting issues with the Veritas High Availability view
      1.  
        Veritas high availability view is not visible from a cluster system
      2.  
        Veritas High Availability view does not display the application monitoring status
      3.  
        Veritas High Availability view may freeze due to special characters in application display name
      4.  
        If the Console host abruptly restarts, the high availability view may disappear
      5.  
        Veritas high availability view may fail to load or refresh
      6.  
        Operating system commands to unmount resource may fail

To switch an application to another system

If you want to gracefully stop an application on one system and start it on another system in the same cluster, you must use the Switch link. You can switch the application only to a system where it is not running.

Note that the Switch link is dimmed in the following cases:

  • If you have not configured any application components for monitoring

  • If you have not specified any failover system for the selected application

  • If the application is in maintenance mode

  • If no system exists in the cluster, where the application can be switched

  • If the application is not in online/partial state on even a single system in the cluster

To switch an application

  1. In the appropriate row of the application table, click Switch.
  2. If you want VCS to decide to which system the application must switch, based on policies, then in the Switch Application panel, click Any system, and then click OK.

    To learn more about policies, see the Cluster Server Administrator's Guide.

    If you want to specify the system where you want to switch the application, click User selected system, and then click the appropriate system, and then click OK.

    VCS stops the application on the system where the application is running, and starts it on the system you specified.