InfoScale™ 9.0 Cluster Server Administrator's Guide - Windows

Last Published:
Product(s): InfoScale & Storage Foundation (9.0)
Platform: Windows
  1. Section I. Clustering concepts and terminology
    1. Introducing Cluster Server
      1. About Cluster Server
        1.  
          How VCS detects failure
        2. How VCS ensures application availability
          1.  
            About switchover and failover
      2. About cluster control guidelines
        1.  
          Defined start, stop, and monitor procedures
        2.  
          Ability to restart the application in a known state
        3.  
          External data storage
        4.  
          Licensing and host name issues
      3. About the physical components of VCS
        1.  
          About VCS nodes
        2.  
          About shared storage
        3.  
          About networking
      4. Logical components of VCS
        1.  
          About resources and resource dependencies
        2.  
          Categories of resources
        3.  
          About resource types
        4.  
          About service groups
        5. Types of service groups
          1.  
            About failover service groups
          2.  
            About parallel service groups
          3.  
            About hybrid service groups
        6.  
          About the ClusterService group
        7.  
          About agents in VCS
        8.  
          About agent functions
        9. Agent classifications
          1.  
            About bundled agents
          2.  
            About enterprise agents
          3.  
            About custom agents
        10.  
          VCS agent framework
        11. About cluster control, communications, and membership
          1.  
            About the high availability daemon (HAD)
          2.  
            About Group Membership Services and Atomic Broadcast (GAB)
          3.  
            About Low Latency Transport (LLT)
        12. About security services
          1.  
            Digital certification structure
          2.  
            Components for secure communication
          3.  
            Restriction after failed user login attempts
        13.  
          Components for administering VCS
      5.  
        Putting the pieces together
    2. About cluster topologies
      1. Basic failover configurations
        1.  
          Asymmetric or active / passive configuration
        2.  
          Symmetric or active / active configuration
        3.  
          About N-to-1 configuration
      2. About advanced failover configurations
        1.  
          About the N + 1 configuration
        2.  
          About the N-to-N configuration
      3. Cluster topologies and storage configurations
        1.  
          About basic shared storage cluster
        2.  
          About campus, or metropolitan, shared storage cluster
        3.  
          About shared nothing clusters
        4.  
          About replicated data clusters
        5.  
          About global clusters
    3. VCS configuration concepts
      1.  
        About configuring VCS
      2.  
        VCS configuration language
      3. About the main.cf file
        1.  
          About the SystemList attribute
        2.  
          Initial configuration
        3.  
          Including multiple .cf files in main.cf
      4.  
        About the types.cf file
      5. About VCS attributes
        1.  
          About attribute data types
        2.  
          About attribute dimensions
        3.  
          About attributes and cluster objects
        4.  
          Attribute scope across systems: global and local attributes
        5.  
          About attribute life: temporary attributes
        6.  
          Size limitations for VCS objects
      6.  
        VCS keywords and reserved words
      7.  
        VCS environment variables
  2. Section II. Administration - Putting VCS to work
    1. About the VCS user privilege model
      1. About VCS user privileges and roles
        1.  
          VCS privilege levels
        2.  
          User roles in VCS
        3.  
          Hierarchy in VCS roles
        4.  
          User privileges for CLI commands
        5.  
          User privileges for cross-cluster operations
        6.  
          User privileges for clusters that run in secure mode
      2.  
        How administrators assign roles to users
      3.  
        User privileges for OS user groups for clusters running in secure mode
      4.  
        VCS privileges for users with multiple roles
      5. Restricted user privileges
        1.  
          Restricting user privileges
        2.  
          Limitations on restricting user privileges
    2. Getting started with VCS
      1. Configuring the cluster using the Cluster Configuration Wizard
        1.  
          Configuring notification
        2.  
          Configuring Wide-Area Connector process for global clusters
      2. About configuring a cluster from the command line
        1. About preparing for a silent configuration
          1.  
            About configuring a non-secure cluster
          2.  
            About configuring a secure cluster
          3.  
            About deleting a non-secure cluster
          4.  
            About deleting a secure cluster
          5.  
            About element attributes values
          6.  
            About sample XML configuration
        2.  
          Running the silent configuration utility
    3. Administering the cluster from the command line
      1. About administering VCS from the command line
        1.  
          Symbols used in the VCS command syntax
        2.  
          How VCS identifies the local system
        3.  
          About specifying values preceded by a dash (-)
        4.  
          About the -modify option
        5.  
          Encrypting VCS passwords
        6. Encrypting agent passwords
          1.  
            Generating a security key
          2.  
            Encrypting the agent password
          3.  
            Changing the security key
      2.  
        Starting VCS
      3. Stopping the VCS engine and related processes
        1.  
          About stopping VCS without the -force option
        2.  
          About stopping VCS with options other than the -force option
        3.  
          About controlling the hastop behavior by using the EngineShutdown attribute
        4.  
          Additional considerations for stopping VCS
      4. About managing VCS configuration files
        1.  
          About the hacf utility
        2.  
          About multiple versions of .cf files
        3.  
          Verifying a configuration
        4.  
          Scheduling automatic backups for VCS configuration files
        5.  
          Saving a configuration
        6.  
          Setting the configuration to read or write
        7.  
          Displaying configuration files in the correct format
      5. About managing VCS users from the command line
        1.  
          Adding a user
        2.  
          Assigning and removing user privileges
        3.  
          Modifying a user
        4.  
          Deleting a user
        5.  
          Displaying a user
      6. About querying VCS
        1.  
          Querying service groups
        2.  
          Querying resources
        3.  
          Querying resource types
        4.  
          Querying agents
        5.  
          Querying systems
        6.  
          Querying clusters
        7.  
          Querying status
        8.  
          Querying log data files (LDFs)
        9.  
          Using conditional statements to query VCS objects
      7. About administering service groups
        1.  
          Adding and deleting service groups
        2. Modifying service group attributes
          1.  
            Modifying the SystemList attribute
        3.  
          Bringing service groups online
        4.  
          Taking service groups offline
        5.  
          Switching service groups
        6.  
          Freezing and unfreezing service groups
        7.  
          Enabling and disabling priority based failover for a service group
        8.  
          Enabling and disabling service groups
        9.  
          Clearing faulted resources in a service group
        10.  
          Linking and unlinking service groups
      8.  
        Administering agents
      9. About administering resources
        1.  
          About adding resources
        2.  
          Adding resources
        3.  
          Deleting resources
        4.  
          Adding, deleting, and modifying resource attributes
        5.  
          Defining attributes as local
        6.  
          Linking and unlinking resources
        7.  
          Bringing resources online
        8.  
          Taking resources offline
        9.  
          Probing a resource
        10.  
          Clearing a resource
      10. About administering resource types
        1.  
          Adding, deleting, and modifying resource types
        2.  
          Overriding resource type static attributes
      11.  
        Administering systems
      12. About administering clusters
        1.  
          Retrieving version information
      13.  
        Using the -wait option in scripts that use VCS commands
      14.  
        About administering simulated clusters from the command line
    4. Configuring resources and applications in VCS
      1. About configuring resources and applications
        1.  
          Considerations for Windows Server systems
      2. About Virtual Business Services
        1.  
          Features of Virtual Business Services
        2.  
          Sample virtual business service configuration
      3. About Intelligent Resource Monitoring (IMF)
        1.  
          VCS changes to support IMF
        2.  
          VCS agents that support IMF
        3.  
          How IMF works
        4.  
          How to enable IMF
        5.  
          How to disable IMF
        6. Recommended settings
          1.  
            Modify the MountV resource attributes
          2.  
            Modify the attribute values for SQL Analysis Service and SQL Server Agent resources
          3.  
            Modify the NumThreads attribute for MountV and VMDg
      4. About fast failover
        1.  
          VCS changes for fast failover
        2.  
          Enabling fast failover for disk groups
      5. How VCS monitors storage components
        1.  
          Shared storage - if you use NetApp filers
        2.  
          Shared storage - if you use SFW to manage cluster dynamic disk groups
        3.  
          Shared storage - if you use Windows LDM to manage shared disks
        4.  
          Non-shared storage - if you use SFW to manage dynamic disk groups
        5.  
          Non-shared storage - if you use Windows LDM to manage local disks
        6.  
          Non-shared storage - if you use VMware storage
      6. About storage configuration
        1. About managing storage using Windows Logical Disk Manager
          1.  
            Reserving disks (if you use Windows LDM)
          2.  
            Creating volumes (if you use Windows LDM)
          3.  
            Mounting volumes (if you use Windows LDM)
          4.  
            Unassigning a drive letter
          5.  
            Releasing disks (if you use Windows LDM)
          6.  
            Configuration tasks
        2. About managing storage in a Network Appliance storage environment
          1.  
            Configuring Microsoft iSCSI Initiator
          2.  
            Connecting virtual disks to the cluster node
          3.  
            Disconnecting virtual disks from the cluster nodes
        3. About managing shared storage using Storage Foundation for Windows
          1.  
            Using SFW with VCS
          2.  
            Before you configure shared storage using SFW
          3.  
            Configuring shared storage
        4.  
          Managing storage
      7. About configuring network resources
        1. About configuring IP addresses on the systems
          1.  
            Before you configure IP addresses on the systems
          2.  
            Disabling DHCP
          3.  
            Configuring IP addresses on the systems
        2. About configuring virtual computer names
          1.  
            Before you configure virtual computer names
          2.  
            Configuring virtual computer names
      8. About configuring file shares
        1.  
          Before you configure a file share service group
        2.  
          Configuring file shares using the wizard
        3.  
          Modifying a file share service group using the wizard
        4.  
          Deleting a file share service group using the wizard
        5.  
          Creating non-scoped file shares configured with VCS
        6.  
          Making non-scoped file shares accessible while using virtual server name or IP address if NetBIOS and WINS are disabled
      9. About configuring IIS sites
        1.  
          Before you configure an IIS service group
        2.  
          Fixing the IPv6 address configuration for FTP sites
        3.  
          Installing IIS on Windows Server Core
        4.  
          Configuring an IIS service group using the wizard
        5.  
          Modifying an IIS service group using the wizard
        6.  
          Deleting an IIS service group using the wizard
      10. About configuring services
        1.  
          About configuring a service using the GenericService agent
        2. Before you configure a service using the GenericService agent
          1.  
            Changing a service startup type
          2.  
            Configuring a service to run in a user context
        3.  
          Configuring a service using the GenericService agent
        4.  
          About configuring a service using the ServiceMonitor agent
        5.  
          Before you configure a service using the ServiceMonitor agent
        6.  
          Configuring a service using the ServiceMonitor agent
      11. About configuring processes
        1.  
          Before you configure processes
        2.  
          Configuring processes using the Process agent
      12. About configuring Microsoft Message Queuing (MSMQ)
        1.  
          Before you configure the MSMQ service group
        2.  
          Configuring the MSMQ resource using the command-line utility
        3.  
          Configuring the MSMQ service group using the wizard
        4.  
          Modifying an MSMQ service group using the wizard
        5.  
          Configuring MSMQ agent to check port bindings more than once
        6.  
          Binding an MSMQ instance to the correct IP address
        7.  
          Checking whether MSMQ is listening for messages
      13. About configuring the infrastructure and support agents
        1.  
          About configuring notification
        2. Configuring registry replication
          1.  
            About registry hive abbreviations
          2.  
            About excluding keys
          3.  
            About ignoring subkeys
          4.  
            About additional considerations for using IgnoreSubKeys
        3.  
          Configuring a proxy resource
        4.  
          Configuring a phantom resource
        5.  
          Configuring file resources
        6.  
          Configuring a RemoteGroup resource
      14. About configuring applications using the Application Configuration Wizard
        1.  
          Before you configure service groups using the Application Configuration wizard
        2. Adding resources to a service group
          1.  
            Configuring a GenericService resource
          2.  
            Configuring processes
          3.  
            Configuring a ServiceMonitor resource
          4.  
            Configuring VCS components
        3.  
          Configuring service groups using the Application Configuration Wizard
        4.  
          Modifying an application service group
        5.  
          Deleting resources from a service group
        6.  
          Deleting an application service group
      15. About application monitoring on single-node clusters
        1.  
          Configuring application monitoring on a single-node cluster
        2.  
          Verifying whether application monitoring is enabled on the single-node cluster
        3.  
          Unconfiguring application monitoring on a single-node cluster
        4.  
          About reviewing and troubleshooting the configuration and monitoring activities
      16. Configuring the service group in a non-shared storage environment
        1.  
          Setting the timeout duration for which the VMNSDg agent waits for all the disks to arrive before importing the disk group
      17. About the VCS Application Manager utility
        1.  
          Managing applications in virtual server context
      18. About testing resource failover using virtual fire drills
        1.  
          About virtual fire drills
        2.  
          About infrastructure checks and fixes for supported agents
        3.  
          About running a virtual fire drill
    5. Modifying the cluster configuration
      1.  
        About modifying the cluster configuration
      2.  
        Adding nodes to a cluster
      3.  
        Removing nodes from a cluster
      4.  
        Reconfiguring a cluster
      5.  
        Configuring single sign-on for the cluster manually
      6. Configuring the ClusterService group
        1.  
          Configuring notification
        2.  
          Configuring the wide-area connector process for global clusters
      7.  
        Deleting a cluster configuration
  3. Section III. Administration - Beyond the basics
    1. Controlling VCS behavior
      1. VCS behavior on resource faults
        1.  
          Critical and non-critical resources
        2. VCS behavior diagrams
          1.  
            Example scenario 1: Resource with critical parent faults
          2.  
            Example scenario 2: Resource with non-critical parent faults
          3.  
            Example scenario 3: Resource with critical parent fails to come online
      2. About controlling VCS behavior at the service group level
        1.  
          About the AutoRestart attribute
        2.  
          About controlling failover on service group or system faults
        3.  
          About defining failover policies
        4.  
          About system zones
        5.  
          Load-based autostart
        6.  
          About freezing service groups
        7.  
          About controlling Clean behavior on resource faults
        8.  
          Clearing resources in the ADMIN_WAIT state
        9.  
          About controlling fault propagation
        10. Customized behavior diagrams
          1.  
            Example scenario: Resource with a critical parent and ManageFaults=NONE
          2.  
            Example scenario: Resource with a critical parent and FaultPropagation=0
        11. VCS behavior for resources that support the intentional offline functionality
          1.  
            About the IntentionalOffline attribute
          2.  
            About the ExternalStateChange attribute
      3. About controlling VCS behavior at the resource level
        1. Resource type attributes that control resource behavior
          1.  
            About the RestartLimit attribute
          2.  
            About the OnlineRetryLimit attribute
          3.  
            About the ConfInterval attribute
          4.  
            About the ToleranceLimit attribute
          5.  
            About the FaultOnMonitorTimeouts attribute
        2. How VCS handles resource faults
          1.  
            VCS behavior when an online resource faults
          2.  
            VCS behavior when a resource fails to come online
        3.  
          VCS behavior after a resource is declared faulted
        4. About disabling resources
          1.  
            When to disable a resource
          2.  
            Limitations of disabling resources
          3.  
            Additional considerations for disabling resources
          4.  
            How disabled resources affect group states
      4.  
        Changing agent file paths and binaries
      5. Service group workload management
        1.  
          About enabling service group workload management
        2. System capacity and service group load
          1.  
            Static load versus dynamic load
          2.  
            About overload warning
        3.  
          System limits and service group prerequisites
        4.  
          About capacity and limits
      6. Sample configurations depicting workload management
        1.  
          System and Service group definitions
        2. Sample configuration: Basic four-node cluster
          1.  
            About AutoStart operation
          2.  
            About the failure scenario
          3.  
            About the cascading failure scenario
        3. Sample configuration: Complex four-node cluster
          1.  
            About the AutoStart operation
          2.  
            About the normal operation
          3.  
            About the failure scenario
          4.  
            About the cascading failure scenario
        4. Sample configuration: Server consolidation
          1.  
            About the AutoStart operation
          2.  
            About the normal operation
          3.  
            About the failure scenario
          4.  
            About the cascading failure scenario
    2. The role of service group dependencies
      1. About service group dependencies
        1. About dependency links
          1.  
            Dependency categories
          2.  
            Dependency location
          3.  
            Dependency rigidity
        2.  
          About dependency limitations
      2. Service group dependency configurations
        1. About failover parent / failover child
          1.  
            About failover parent / parallel child
          2.  
            About parallel parent / failover child
          3.  
            About parallel parent / parallel child
      3.  
        Frequently asked questions about group dependencies
      4.  
        About linking service groups
      5. VCS behavior with service group dependencies
        1.  
          Online operations in group dependencies
        2.  
          Offline operations in group dependencies
        3.  
          Switch operations in group dependencies
    3. VCS event notification
      1. About VCS event notification
        1.  
          Event messages and severity levels
        2.  
          About persistent and replicated message queue
        3.  
          How HAD deletes messages
      2. Components of VCS event notification
        1. About the notifier process
          1.  
            Example of notifier command
        2. About the hanotify utility
          1.  
            Example of hanotify command
      3. About VCS events and traps
        1.  
          Events and traps for clusters
        2.  
          Events and traps for agents
        3.  
          Events and traps for resources
        4.  
          Events and traps for systems
        5.  
          Events and traps for service groups
        6.  
          SNMP-specific files
        7. Trap variables in VCS MIB
          1.  
            About severityId
          2.  
            EntityType and entitySubType
          3.  
            About entityState
      4. About monitoring aggregate events
        1.  
          How to detect service group failover
        2.  
          How to detect service group switch
      5.  
        About configuring notification
    4. VCS event triggers
      1.  
        About VCS event triggers
      2.  
        Using event triggers
      3. List of event triggers
        1.  
          About the dumptunables trigger
        2.  
          About the injeopardy event trigger
        3.  
          About the loadwarning event trigger
        4.  
          About the nofailover event trigger
        5.  
          About the postoffline event trigger
        6.  
          About the postonline event trigger
        7.  
          About the preonline event trigger
        8.  
          About the resadminwait event trigger
        9.  
          About the resfault event trigger
        10.  
          About the resnotoff event trigger
        11.  
          About the resrestart event trigger
        12.  
          About the resstatechange event trigger
        13.  
          About the sysoffline event trigger
        14.  
          About the unable_to_restart_agent event trigger
        15.  
          About the unable_to_restart_had event trigger
        16.  
          About the violation event trigger
  4. Section IV. Cluster configurations for disaster recovery
    1. Connecting clusters–Creating global clusters
      1.  
        How VCS global clusters work
      2. VCS global clusters: The building blocks
        1.  
          Visualization of remote cluster objects
        2.  
          About global service groups
        3. About global cluster management
          1.  
            About the wide-area connector process
          2.  
            About the wide-area heartbeat agent
        4. About serialization - The Authority attribute
          1.  
            About the Authority and AutoStart attributes
        5.  
          About resiliency and "Right of way"
        6.  
          VCS agents to manage wide-area failover
        7.  
          About the Steward process: Split-brain in two-cluster global clusters
        8.  
          Secure communication in global clusters
      3. Prerequisites for global clusters
        1.  
          Prerequisites for cluster setup
        2.  
          Prerequisites for application setup
        3.  
          Prerequisites for wide-area heartbeats
        4.  
          Prerequisites for ClusterService group
        5.  
          Prerequisites for replication setup
      4. Setting up a global cluster
        1.  
          Preparing the application for the global environment
        2.  
          Configuring the ClusterService group
        3. Configuring replication resources in VCS
          1.  
            About the prerequisites for configuring replication resources in VCS
        4.  
          Linking the application and replication service groups
        5.  
          Configuring the second cluster
        6.  
          Linking clusters
        7.  
          Configuring the Steward process (optional)
        8.  
          Stopping the Steward process
        9.  
          Configuring the global service group
      5. About IPv6 support with global clusters
        1.  
          Prerequisites for configuring a global cluster to support IPv6
        2.  
          Migrating an InfoScale Availability cluster from IPv4 to IPv6 when Virtual IP (ClusterAddress) is configured
        3.  
          Migrating an InfoScale Availability cluster to IPv6 in a GCO deployment
      6. About cluster faults
        1.  
          About the type of failure
        2.  
          Switching the service group back to the primary
      7. About setting up a disaster recovery fire drill
        1. About creating and configuring the fire drill service group manually
          1.  
            Creating the fire drill service group
          2.  
            Linking the fire drill and replication service groups
          3.  
            Adding resources to the fire drill service group
          4.  
            Configuring the fire drill service group
          5.  
            Enabling the FireDrill attribute
      8.  
        Multi-tiered application support using the RemoteGroup agent in a global environment
      9. Test scenario for a multi-tiered environment
        1.  
          About the main.cf file for cluster 1
        2.  
          About the main.cf file for cluster 2
        3.  
          About the main.cf file for cluster 3
        4.  
          About the main.cf file for cluster 4
    2. Administering global clusters from Cluster Manager (Java console)
      1.  
        About global clusters
      2.  
        Adding a remote cluster
      3.  
        Deleting a remote cluster
      4. Administering global service groups
        1.  
          Converting local and global groups
        2.  
          Bringing a service group online in a remote cluster
        3.  
          Taking a service group offline in a remote cluster
        4.  
          Switching a service group to a remote cluster
      5. Administering global heartbeats
        1.  
          Adding a global heartbeat
        2.  
          Modifying a global heartbeat
        3.  
          Deleting a global heartbeat
    3. Administering global clusters from the command line
      1.  
        About administering global clusters from the command line
      2. About global querying in a global cluster setup
        1.  
          Querying global cluster service groups
        2.  
          Querying resources across clusters
        3.  
          Querying systems
        4.  
          Querying clusters
        5.  
          Querying status
        6.  
          Querying heartbeats
      3.  
        Administering global service groups in a global cluster setup
      4.  
        Administering resources in a global cluster setup
      5. Administering clusters in global cluster setup
        1.  
          Managing cluster alerts in a global cluster setup
        2.  
          Changing the cluster name in a global cluster setup
      6.  
        Administering heartbeats in a global cluster setup
    4. Setting up replicated data clusters
      1.  
        About replicated data clusters
      2.  
        How VCS replicated data clusters work
      3.  
        About setting up a replicated data cluster configuration
  5. Section V. Troubleshooting and performance
    1. VCS performance considerations
      1. How cluster components affect performance
        1.  
          How kernel components (GAB and LLT) affect performance
        2.  
          How the VCS engine (HAD) affects performance
        3. How agents affect performance
          1.  
            Monitoring resource type and agent configuration
        4.  
          How the VCS graphical user interfaces affect performance
        5.  
          If the network adapters cannot ping each other, the cluster nodes may not get GAB membership
      2. How cluster operations affect performance
        1.  
          VCS performance consideration when booting a cluster system
        2.  
          VCS performance consideration when a resource comes online
        3.  
          VCS performance consideration when a resource goes offline
        4.  
          VCS performance consideration when a service group comes online
        5.  
          VCS performance consideration when a service group goes offline
        6.  
          VCS performance consideration when a resource fails
        7.  
          VCS performance consideration when a system fails
        8.  
          VCS performance consideration when a network link fails
        9. VCS performance consideration when a system panics
          1.  
            About GAB client process failure
          2.  
            About GAB client registration monitoring
          3.  
            About network failure and GAB IOFENCE message
          4.  
            About quick reopen
        10.  
          VCS performance consideration when a service group switches over
        11.  
          VCS performance consideration when a service group fails over
      3.  
        Monitoring CPU usage
      4. VCS agent statistics
        1.  
          Tracking monitor cycle times
        2.  
          VCS attributes enabling agent statistics
      5.  
        About VCS performance with non-HA products
      6.  
        About VCS performance with SFW
    2. Troubleshooting and recovery for VCS
      1. VCS message logging
        1.  
          VCW logs
        2.  
          VCWsilent logs
        3.  
          Solutions wizard logs
        4.  
          Message catalogs
      2. Handling network failure
        1.  
          Disabling failover
        2. Example of how VCS handles network failure
          1.  
            Jeopardy scenario: link failure
          2.  
            Jeopardy scenario: link and node failure
          3.  
            Jeopardy scenario: failure of all links
        3.  
          Network partitioning
        4.  
          When VCS shuts down a system
        5.  
          Pre-existing network partitions
        6.  
          Seeding of VCS clusters
        7.  
          Reconnecting the private network
      3. Troubleshooting VCS startup
        1. Low Latency Transport (LLT)
          1.  
            Common LLT directives
        2.  
          Group Membership Atomic Broadcast (GAB)
        3. Verifying LLT, GAB, and cluster operation
          1.  
            Verifying LLT
          2.  
            Setting the checksum option
          3.  
            Verifying GAB
          4.  
            Verifying HAD
          5.  
            Verifying the cluster
        4. VCS startup errors
          1.  
            Seeding the cluster
        5.  
          Cluster ID is not unique over a network
      4.  
        Troubleshooting secure clusters
      5. Troubleshooting service groups
        1.  
          ClusterService group configuration
      6.  
        Troubleshooting resources
      7.  
        Troubleshooting notification
      8. Troubleshooting and recovery for global clusters
        1.  
          Disaster declaration
        2.  
          Lost heartbeats and the inquiry mechanism
        3. VCS alerts
          1.  
            Types of alerts
          2.  
            Managing alerts
          3.  
            Actions associated with alerts
          4.  
            Negating events
      9.  
        Troubleshooting the steward process
      10. VCS utilities
        1. The getcomms utility
          1.  
            getcomms options
          2.  
            Log location
        2. The hagetcf utility
          1.  
            Log location
          2.  
            Options for the hagetcf utility
        3.  
          The NICTest utility
        4.  
          The VCSRegUtil utility
        5. The havol utility
          1.  
            Using the -getdrive option
          2.  
            Using the -scsitest option
          3.  
            Retrieving the disk number
          4.  
            The -scsitest command options
        6.  
          The vmgetdrive utility
        7. Configuring the VCS Helper service manually
          1.  
            Command syntax
          2.  
            Command options
  6. Section VI. Appendixes
    1. Appendix A. VCS user privileges—administration matrices
      1.  
        About administration matrices
      2. Administration matrices
        1.  
          Agent Operations (haagent)
        2.  
          Attribute Operations (haattr)
        3.  
          Cluster Operations (haclus, haconf)
        4.  
          Service group operations (hagrp)
        5.  
          Heartbeat operations (hahb)
        6.  
          Log operations (halog)
        7.  
          Resource operations (hares)
        8.  
          System operations (hasys)
        9.  
          Resource type operations (hatype)
        10.  
          User operations (hauser)
    2. Appendix B. Cluster and system states
      1. Remote cluster states
        1.  
          Examples of cluster state transitions
      2. System states
        1.  
          Examples of system state transitions
    3. Appendix C. VCS attributes
      1.  
        About attributes and their definitions
      2.  
        Resource attributes
      3.  
        Resource type attributes
      4.  
        Service group attributes
      5.  
        System attributes
      6.  
        Cluster attributes
      7.  
        Heartbeat attributes (for global clusters)
      8.  
        Remote cluster attributes
    4. Appendix D. Configuring LLT over UDP
      1.  
        About configuring LLT over UDP
      2.  
        When to use LLT over UDP
      3. LLT over UDP configuration
        1.  
          The link command in the llttab file
        2.  
          The set-addr command in the llttab file
        3.  
          Selecting UDP ports
      4.  
        Sample configuration: Direct-attached links
      5.  
        Sample configuration: Links crossing IP routers
      6. Issues and limitations
        1.  
          VCW does not support configuring broadcasting for UDP
        2.  
          If the network adapters are unable to ping each other, the cluster nodes may not get GAB membership
    5. Appendix E. Handling concurrency violation in any-to-any configurations
      1.  
        About handling concurrency violation
      2.  
        Concurrency violation scenario
      3.  
        About the vcsgensvc.vbs script
      4. Sample configuration to handle concurrency violation
        1.  
          Notes for using scripts with the Process agent
    6. Appendix F. Accessibility and VCS
      1.  
        About accessibility in VCS
      2. Navigation and keyboard shortcuts
        1.  
          Navigation in the Java Console
        2.  
          Navigation in the Web console
      3.  
        Support for accessibility settings
      4.  
        Support for assistive technologies
    7. Appendix G. Executive Order logging
      1.  
        Executive Order logging
      2.  
        Log formatting
      3.  
        Enabling cluster server logs
      4.  
        Log forwarding

System attributes

Table: System attributes lists the system attributes.

Table: System attributes

System Attributes

Definition

AgentsStopped

(system use only)

This attribute is set to 1 on a system when all agents running on the system are stopped.

  • Type and dimension: integer-scalar

  • Default: Not applicable

AvailableCapacity

(system use only)

Indicates the available capacity of the system.

The function of this attribute depends on the value of the cluster-level attribute Statistics. If the value of the Statistics is:

  • Enabled - Any change made to AvailableCapacity does not affect VCS behavior.

  • MeteringOnly or Disabled - This attribute is populated based on Capacity and DynamicLoad (system attributes) and Load (service group attribute) specified using the hasys -load command. The key for this value is Units.

You cannot configure this attribute in the main.cf file.

  • Type and dimension: float-association

  • Default: Not applicable

Capacity

(user-defined)

Represents total capacity of a system. The possible values are:

  • Enabled - The attribute Capacity is auto-populated by meters representing system capacity in absolute units. It has all the keys specified in HostMeters, such as CPU, Mem, and Swap. The values for keys are set in corresponding units as specified in the Cluster attribute MeterUnit.

    You cannot configure this attribute in the main.cf file if the cluster-level attribute Statistics is set to Enabled.

    If the cluster-level attribute Statistics is enabled, any change made to Capacity does not affect VCS behavior.

  • MeteringOnly or Disabled - Allows you to define a value for Capacity if the value of the cluster-level attribute Statistics is set to MeteringOnly or Disabled. This value is relative to other systems in the cluster and does not reflect any real value associated with a particular system. The key for this value is Units. The default value for this attribute is 100 Units.

    For example, the administrator may assign a value of 200 to a 16-processor system and 100 to an 8-processor system.

    You can configure this attribute in the main.cf file and also modify the value at run time if Statistics is set to MeteringOnly or Disabled.

  • Type and dimension: float-association

  • Default: Depends on the value set for Statistics.

ConfigBlockCount

(system use only)

Number of 512-byte blocks in configuration when the system joined the cluster.

  • Type and dimension: integer-scalar

  • Default: Not applicable

ConfigCheckSum

(system use only)

Sixteen-bit checksum of configuration identifying when the system joined the cluster.

  • Type and dimension: integer-scalar

  • Default: Not applicable

ConfigDiskState

(system use only)

State of configuration on the disk when the system joined the cluster.

  • Type and dimension: integer-scalar

  • Default: Not applicable

ConfigFile

(system use only)

Directory containing the configuration files.

  • Type and dimension: string-scalar

  • Default: "/etc/VRTSvcs/conf/config"

ConfigInfoCnt

(system use only)

The count of outstanding CONFIG_INFO messages the local node expects from a new membership message. This attribute is non-zero for the brief period during which new membership is processed. When the value returns to 0, the state of all nodes in the cluster is determined.

  • Type and dimension: integer-scalar

  • Default: Not applicable

ConfigModDate

(system use only)

Last modification date of configuration when the system joined the cluster.

  • Type and dimension: integer-scalar

  • Default: Not applicable

CPUThresholdLevel

(user-defined)

Determines the threshold values for CPU utilization based on which various levels of logs are generated. The notification levels are Critical, Warning, Note, and Info, and the logs are stored in the file engine_A.log. If the Warning level is crossed, a notification is generated. The values are configurable at a system level in the cluster.

  • For example, the administrator may set the value of CPUThresholdLevel as follows:

  • CPUThresholdLevel={Critical=95, Warning=80, Note=75, Info=60}

  • Type and dimension: integer-association

  • Default: Critical=90, Warning=80, Note=70, Info=60

CPUUsage

(system use only)

This attribute is deprecated. VCS monitors system resources on startup.

CPUUsageMonitoring

This attribute is deprecated. VCS monitors system resources on startup.

CurrentLimits

(system use only)

System-maintained calculation of current value of Limits.

CurrentLimits = Limits - (additive value of all service group Prerequisites).

  • Type and dimension: integer-association

  • Default: Not applicable

DiskHbStatus

(system use only)

Deprecated attribute. Indicates status of communication disks on any system.

  • Type and dimension: string-association

  • Default: Not applicable

DynamicLoad

(user-defined)

System-maintained value of current dynamic load. The value is set external to VCS with the hasys -load command. When you specify the dynamic system load, VCS does not use the static group load.

  • Type and dimension: float-association

  • Default: "" (none)

EngineRestarted

(system use only)

Indicates whether the VCS engine (HAD) was restarted by the hashadow process on a node in the cluster. The value 1 indicates that the engine was restarted; 0 indicates it was not restarted.

  • Type and dimension: boolean-scalar

  • Default: 0

EngineVersion

(system use only)

Specifies the major, minor, maintenance-patch, and point-patch version of VCS.

The value of EngineVersion attribute is in hexa-decimal format. To retrieve version information:

Major Version: EngineVersion >> 24 & 0xff
Minor Version: EngineVersion >> 16 & 0xff
Maint Patch: EngineVersion >>  8 & 0xff
Point Patch: EngineVersion & 0xff

  • Type and dimension: integer-scalar

  • Default: Not applicable

Frozen

(system use only)

Indicates if service groups can be brought online on the system. Groups cannot be brought online if the attribute value is 1.

  • Type and dimension: boolean-scalar

  • Default: 0

GUIIPAddr

(user-defined)

Determines the local IP address that VCS uses to accept connections. Incoming connections over other IP addresses are dropped. If GUIIPAddr is not set, the default behavior is to accept external connections over all configured local IP addresses.

  • Type and dimension: string-scalar

  • Default: ""

HostAvailableForecast

(system use only)

Indicates the forecasted available capacities of the systems in a cluster based on the past metered AvailableCapacity.

The HostMonitor agent auto-populates values for this attribute, if the cluster attribute Statistics is set to Enabled. It has all the keys specified in HostMeters, such as CPU, Mem, and Swap. The values for keys are set in corresponding units as specified in the Cluster attribute MeterUnit.

You cannot configure this attribute in main.cf.

  • Type and dimension: float-association

  • Default: Not applicable

LicenseType

(system use only)

Indicates the license type of the base VCS key used by the system. Possible values are:

0 - DEMO

1 - PERMANENT

2 - PERMANENT_NODE_LOCK

3 - DEMO_NODE_LOCK

4 - NFR

5 - DEMO_EXTENSION

6 - NFR_NODE_LOCK

7 - DEMO_EXTENSION_NODE_LOCK

  • Type and dimension: integer-scalar

  • Default: Not applicable

Limits

(user-defined)

An unordered set of name=value pairs denoting specific resources available on a system. Names are arbitrary and are set by the administrator for any value. Names are not obtained from the system.

The format for Limits is: Limits = { Name=Value, Name2=Value2}.

  • Type and dimension: integer-association

  • Default: ""

LinkHbStatus

(system use only)

Indicates status of private network links on any system.

Possible values include the following:

LinkHbStatus = { nic1 = UP, nic2 = DOWN }

Where the value UP for nic1 means there is at least one peer in the cluster that is visible on nic1.

Where the value DOWN for nic2 means no peer in the cluster is visible on nic2.

  • Type and dimension: string-association

  • Default: Not applicable

LLTNodeId

(system use only)

Displays the node ID defined in the file.

%VCS_HOME%\comms\llt\llttab.txt

  • Type and dimension: integer-scalar

  • Default: Not applicable

LoadTimeCounter

(system use only)

System-maintained internal counter of how many seconds the system load has been above LoadWarningLevel. This value resets to zero anytime system load drops below the value in LoadWarningLevel.

If the cluster-level attribute Statistics is enabled, any change made to LoadTimeCounter does not affect VCS behavior.

  • Type and dimension: integer-scalar

  • Default: Not applicable

LoadTimeThreshold

(user-defined)

How long the system load must remain at or above LoadWarningLevel before the LoadWarning trigger is fired. If set to 0 overload calculations are disabled.

If the cluster-level attribute Statistics is enabled, any change made to LoadTimeThreshold does not affect VCS behavior.

  • Type and dimension: integer-scalar

  • Default: 600

LoadWarningLevel

(user-defined)

A percentage of total capacity where load has reached a critical limit. If set to 0 overload calculations are disabled.

For example, setting LoadWarningLevel = 80 sets the warning level to 80 percent.

The value of this attribute can be set from 1 to 100. If set to 1, system load must equal 1 percent of system capacity to begin incrementing the LoadTimeCounter. If set to 100, system load must equal system capacity to increment the LoadTimeCounter.

If the cluster-level attribute Statistics is enabled, any change made to LoadWarningLevel does not affect VCS behavior.

  • Type and dimension: integer-scalar

  • Default: 80

MemThresholdLevel

(user-defined)

Determines the threshold values for memory utilization based on which various levels of logs are generated. The notification levels are Critical, Warning, Note, and Info, and the logs are stored in the file engine_A.log. If the Warning level is crossed, a notification is generated. The values are configurable at a system level in the cluster.

For example, the administrator may set the value of MemThresholdLevel as follows:

  • MemThresholdLevel={Critical=95, Warning=80, Note=75, Info=60}

  • Type and dimension: integer-association

  • Default: Critical=90, Warning=80, Note=70, Info=60

MeterRecord

(system use only)

Acts as an internal system attribute with predefined keys. This attribute is updated only when the Cluster attribute AdpativePolicy is set to Enabled.

  • Type and dimension: integer-association

  • Default: Not applicable

Possible keys are:

  • AvailableGC: Stores the value of the cluster attribute GlobalCounter when the HostMonitor agent updates the system attribute AvailableCapacity.

    If the value of AvailableGC for a system in running state is older than the last 24 values of the cluster attribute GlobalCounter it indicates:

    • Values are not updated at the required frequency by the HostMonitor agent.

    • Values of system attributes AvailableCapacity and HostUtilization are stale.

  • ForecastGC: Stores cluster attribute GlobalCounter value when system HostAvailableForecast attribute is updated.

    If the value of ForecastGC for a system in running state is older than the last 72 values of the cluster attribute GlobalCounter it indicates :

    • HostMonitor agent is not forecasting the available capacity at the required frequency.

    • The values of the system attribute HostAvailableForecast are stale.

    • If any of the running systems in SystemList have stale value in HostAvailableForecast when FailOverPolicy is set to BiggestAvailable, then VCS does not apply BiggestAvailable policy. Instead, it considers Priority as the FailOverPolicy.

NoAutoDisable

(system use only)

When set to 0, this attribute autodisables service groups when the VCS engine is taken down. Groups remain autodisabled until the engine is brought up (regular membership).

This attribute's value is updated whenever a node joins (gets into RUNNING state) or leaves the cluster. This attribute cannot be set manually.

  • Type and dimension: boolean-scalar

  • Default: 0

NodeId

(system use only)

System (node) identification specified in:

%VCS_HOME%\comms\llt\llttab.txt

  • Type and dimension: integer-scalar

  • Default: Not applicable

OnGrpCnt

(system use only)

Number of groups that are online, or about to go online, on a system.

  • Type and dimension: integer-scalar

  • Default: Not applicable

ReservedCapacity

(system use only)

Indicates the reserved capacity on the systems for service groups which are coming online and with FailOverPolicy is set to BiggestAvailable. It has all of the keys specified in HostMeters, such as CPU, Mem, and Swap. The values for keys are set in corresponding units as specified in the Cluster attribute MeterUnit.

  • Type and dimension: float-association

  • Default: Not applicable

When the service group completes online transition and after the next forecast cycle, ReservedCapacity is updated.

You cannot configure this attribute in main.cf.

ShutdownTimeout

(user-defined)

Determines whether to treat system reboot as a fault for service groups running on the system.

On many systems, when a reboot occurs the processes are stopped first, then the system goes down. When the VCS engine is stopped, service groups that include the failed system in their SystemList attributes are autodisabled. However, if the system goes down within the number of seconds designated in ShutdownTimeout, service groups previously online on the failed system are treated as faulted and failed over. Arctera recommends that you set this attribute depending on the average time it takes to shut down the system.

If you do not want to treat the system reboot as a fault, set the value for this attribute to 0.

  • Type and dimension: integer-scalar

  • Default: 120 seconds

SourceFile

(user-defined)

File from which the configuration is read. Do not configure this attribute in main.cf.

Make sure the path exists on all nodes before running a command that configures this attribute.

  • Type and dimension: string-scalar

  • Default: .\main.cf

SupportedProtocol

(System use only)

A system-level attribute that displays the protocol numbers supported by the running system node.

  • Type and dimension: integer-association

  • Default: 8.0.0.0000 = 11000

SwapThresholdLevel

(user-defined)

Determines the threshold values for swap space utilization based on which various levels of logs are generated. The notification levels are Critical, Warning, Note, and Info, and the logs are stored in the file engine_A.log. If the Warning level is crossed, a notification is generated. The values are configurable at a system level in the cluster.

  • For example, the administrator may set the value of SwapThresholdLevel as follows:

  • SwapThresholdLevel={Critical=95, Warning=80, Note=75, Info=60}

  • Type and dimension: integer-association

  • Default: Critical=90, Warning=80, Note=70, Info=60

SysInfo

(system use only)

Provides platform-specific information, including the name, version, and release of the operating system, the name of the system on which it is running, and the hardware type.

  • Type and dimension: string-scalar

  • Default: Not applicable

SysName

(system use only)

Indicates the system name.

  • Type and dimension: string-scalar

  • Default: Not applicable

SysState

(system use only)

Indicates system states, such as RUNNING, FAULTED, EXITED, etc.

  • Type and dimension: integer-scalar

  • Default: Not applicable

SystemLocation

(user-defined)

Indicates the location of the system.

  • Type and dimension: string-scalar

  • Default: ""

SystemOwner

(user-defined)

Use this attribute for VCS email notification and logging. VCS sends email notification to the person designated in this attribute when an event occurs related to the system. Note that while VCS logs most events, not all events trigger notifications.

Make sure to set the severity level at which you want notifications to SystemOwner or to at least one recipient defined in the SmtpRecipients attribute of the NotifierMngr agent.

  • Type and dimension: string-scalar

  • Default: ""

  • Example: "unknown"

SystemRecipients

(user-defined)

This attribute is used for VCS email notification. VCS sends email notification to persons designated in this attribute when events related to the system occur and when the event's severity level is equal to or greater than the level specified in the attribute.

Make sure to set the severity level at which you want notifications to be sent to SystemRecipients or to at least one recipient defined in the SmtpRecipients attribute of the NotifierMngr agent.

  • Type and dimension: string-association

  • email id: The e-mail address of the person registered as a recipient for notification.

    severity: The minimum level of severity at which notifications must be sent.

TFrozen

(user-defined)

Indicates whether a service group can be brought online on a node. Service group cannot be brought online if the value of this attribute is 1.

  • Type and dimension: boolean-scalar

  • Default: 0

TRSE

(system use only)

Indicates in seconds the time to Regular State Exit. Time is calculated as the duration between the events of VCS losing port h membership and of VCS losing port a membership of GAB.

  • Type and dimension: integer-scalar

  • Default: Not applicable

UpDownState

(system use only)

This attribute has four values:

Down (0): System is powered off, or GAB and LLT are not running on the system.

Up but not in cluster membership (1): GAB and LLT are running but the VCS engine is not.

Up and in jeopardy (2): The system is up and part of cluster membership, but only one network link (LLT) remains.

Up (3): The system is up and part of cluster membership, and has at least two links to the cluster.

  • Type and dimension: integer-scalar

  • Default: Not applicable

UserInt

(user-defined)

Stores integer values you want to use. VCS does not interpret the value of this attribute.

  • Type and dimension: integer-scalar

  • Default: 0

VCSFeatures

(system use only)

Indicates which VCS features are enabled. Possible values are:

0 - No features enabled (VCS Simulator)

1 - L3+ is enabled

2 - Global Cluster Option is enabled

Even though VCSFeatures attribute is an integer attribute, when you query the value with the hasys -value command or the hasys -display command, it displays as the string L10N for value 1 and DR for value 2.

  • Type and dimension: integer-scalar

  • Default: Not applicable

More Information

User privileges for CLI commands