InfoScale™ 9.0 Cluster Server Configuration and Upgrade Guide - AIX

Last Published:
Product(s): InfoScale & Storage Foundation (9.0)
Platform: AIX
  1. Section I. Configuring Cluster Server using the script-based installer
    1. I/O fencing requirements
      1. I/O fencing requirements
        1.  
          Coordinator disk requirements for I/O fencing
        2.  
          CP server requirements
        3.  
          Non-SCSI-3 I/O fencing requirements
    2. Preparing to configure VCS clusters for data integrity
      1. About planning to configure I/O fencing
        1.  
          Typical VCS cluster configuration with disk-based I/O fencing
        2.  
        3.  
          Recommended CP server configurations
      2. Setting up the CP server
        1.  
          Planning your CP server setup
        2.  
          Installing the CP server using the installer
        3.  
          Setting up shared storage for the CP server database
        4.  
          Configuring the CP server using the installer program
        5. Configuring the CP server manually
          1.  
            Configuring the CP server manually for HTTPS-based communication
          2.  
            Generating the key and certificates manually for the CP server
          3.  
            Completing the CP server configuration
        6. Configuring CP server using response files
          1.  
            Response file variables to configure CP server
          2.  
            Sample response file for configuring the CP server on single node VCS cluster
          3.  
            Sample response file for configuring the CP server on SFHA cluster
        7.  
          Verifying the CP server configuration
    3. Configuring VCS
      1.  
        Overview of tasks to configure VCS using the product installer
      2.  
        Starting the software configuration
      3.  
        Specifying systems for configuration
      4.  
        Configuring the cluster name
      5.  
        Configuring private heartbeat links
      6.  
        Configuring the virtual IP of the cluster
      7.  
        Configuring VCS in secure mode
      8.  
        Setting up trust relationships for your VCS cluster
      9. Configuring a secure cluster node by node
        1.  
          Configuring the first node
        2.  
          Configuring the remaining nodes
        3.  
          Completing the secure cluster configuration
      10.  
        Adding VCS users
      11.  
        Configuring SMTP email notification
      12.  
        Configuring SNMP trap notification
      13.  
        Configuring global clusters
      14.  
        Completing the VCS configuration
      15.  
        About the License Audit Tool
      16. Verifying and updating licenses on the system
        1.  
          Checking licensing information on the system
        2.  
          Replacing a VCS keyless license with another keyless license
        3.  
          Replacing a VCS keyless license with a permanent license
    4. Configuring VCS clusters for data integrity
      1. Setting up disk-based I/O fencing using installer
        1.  
          Initializing disks as VxVM disks
        2.  
          Configuring disk-based I/O fencing using installer
        3.  
          Refreshing keys or registrations on the existing coordination points for disk-based fencing using the installer
        4. Checking shared disks for I/O fencing
          1.  
            Verifying Array Support Library (ASL)
          2.  
            Verifying that the nodes have access to the same disk
          3.  
            Testing the disks using vxfentsthdw utility
      2. Setting up server-based I/O fencing using installer
        1.  
          Refreshing keys or registrations on the existing coordination points for server-based fencing using the installer
        2. Setting the order of existing coordination points for server-based fencing using the installer
          1.  
            About deciding the order of existing coordination points
          2.  
            Setting the order of existing coordination points using the installer
      3.  
        Setting up non-SCSI-3 I/O fencing in virtual environments using installer
      4.  
        Setting up majority-based I/O fencing using installer
      5.  
        Enabling or disabling the preferred fencing policy
  2. Section II. Automated configuration using response files
    1. Performing an automated VCS configuration
      1.  
        Configuring VCS using response files
      2.  
        Response file variables to configure VCS
      3.  
        Sample response file for configuring Cluster Server
    2. Performing an automated I/O fencing configuration using response files
      1.  
        Configuring I/O fencing using response files
      2.  
        Response file variables to configure disk-based I/O fencing
      3.  
        Sample response file for configuring disk-based I/O fencing
      4.  
        Response file variables to configure server-based I/O fencing
      5.  
        Sample response file for configuring server-based I/O fencing
      6.  
        Response file variables to configure non-SCSI-3 I/O fencing
      7.  
        Sample response file for configuring non-SCSI-3 I/O fencing
      8.  
        Response file variables to configure majority-based I/O fencing
      9.  
        Sample response file for configuring majority-based I/O fencing
  3. Section III. Manual configuration
    1. Manually configuring VCS
      1.  
        About configuring VCS manually
      2. Configuring LLT manually
        1.  
          Setting up /etc/llthosts for a manual installation
        2.  
          Setting up /etc/llttab for a manual installation
        3.  
          About LLT directives in /etc/llttab file
        4.  
          Additional considerations for LLT for a manual installation
      3.  
        Configuring GAB manually
      4. Configuring VCS manually
        1.  
          Configuring the cluster UUID when creating a cluster manually
      5. Configuring VCS in single node mode
        1. Disabling LLT, GAB, and I/O fencing on a single node cluster
          1.  
            Disabling LLT, GAB, and I/O fencing
        2.  
          Enabling LLT, GAB, and I/O fencing
      6.  
        Starting LLT, GAB, and VCS after manual configuration
      7.  
        About configuring cluster using VCS Cluster Configuration wizard
      8.  
        Before configuring a VCS cluster using the VCS Cluster Configuration wizard
      9.  
        Launching the VCS Cluster Configuration wizard
      10.  
        Configuring a cluster by using the VCS cluster configuration wizard
      11.  
        Adding a system to a VCS cluster
      12. Modifying the VCS configuration
        1.  
          Configuring the ClusterService group
    2. Manually configuring the clusters for data integrity
      1. Setting up disk-based I/O fencing manually
        1.  
          Identifying disks to use as coordinator disks
        2.  
          Setting up coordinator disk groups
        3.  
          Creating I/O fencing configuration files
        4.  
          Modifying VCS configuration to use I/O fencing
        5.  
          Verifying I/O fencing configuration
      2. Setting up server-based I/O fencing manually
        1.  
          Preparing the CP servers manually for use by the VCS cluster
        2.  
          Generating the client key and certificates manually on the client nodes
        3. Configuring server-based fencing on the VCS cluster manually
          1.  
            Sample vxfenmode file output for server-based fencing
        4.  
          Configuring CoordPoint agent to monitor coordination points
        5.  
          Verifying server-based I/O fencing configuration
      3. Setting up non-SCSI-3 fencing in virtual environments manually
        1.  
          Sample /etc/vxfenmode file for non-SCSI-3 fencing
      4. Setting up majority-based I/O fencing manually
        1.  
          Creating I/O fencing configuration files
        2.  
          Modifying VCS configuration to use I/O fencing
        3.  
          Verifying I/O fencing configuration
        4.  
          Sample /etc/vxfenmode file for majority-based fencing
  4. Section IV. Upgrading VCS
    1. Planning to upgrade VCS
      1.  
        About upgrading to VCS 9.0
      2.  
        Upgrading VCS in secure enterprise environments
      3.  
        Supported upgrade paths
      4.  
        Considerations for upgrading secure VCS 7.4.x clusters to VCS 9.0
      5.  
        Considerations for upgrading VCS to 9.0 on systems configured with an Oracle resource
      6.  
        Considerations for upgrading CP servers
      7.  
        Considerations for upgrading CP clients
      8.  
        Considerations for upgrading REST server
      9.  
        Using Install Bundles to simultaneously install or upgrade full releases (base, maintenance, rolling patch), and individual patches
    2. Performing a VCS upgrade using the installer
      1.  
        Before upgrading VCS using the script-based installer
      2.  
        Upgrading VCS using the product installer
      3.  
        Upgrading to 2048 bit key and SHA256 signature certificates
      4. Tasks to perform after upgrading to 2048 bit key and SHA256 signature certificates
        1.  
          Deleting certificates of non-root users after upgrading to 2048 bit key and SHA256 signature certificates
        2.  
          Re-establishing WAC communication in global clusters after upgrading to 2048 bit key and SHA256 signature certificates
        3.  
          Re-establishing CP server and CP client communication after upgrading to 2048 bit key and SHA256 signature certificates
        4.  
          Re-establishing trust with Steward after upgrading to 2048 bit key and SHA256 signature certificates
      5.  
        Upgrading Steward to 2048 bit key and SHA256 signature certificates
    3. Performing an online upgrade
      1.  
        Limitations of online upgrade
      2.  
        Upgrading VCS online using the installer
    4. Performing a phased upgrade of VCS
      1. About phased upgrade
        1.  
          Prerequisites for a phased upgrade
        2.  
          Planning for a phased upgrade
        3.  
          Phased upgrade limitations
        4.  
          Phased upgrade example
        5.  
          Phased upgrade example overview
      2. Performing a phased upgrade using the product installer
        1.  
          Moving the service groups to the second subcluster
        2.  
          Upgrading the operating system on the first subcluster
        3.  
          Upgrading the first subcluster
        4.  
          Preparing the second subcluster
        5.  
          Activating the first subcluster
        6.  
          Upgrading the operating system on the second subcluster
        7.  
          Upgrading the second subcluster
        8.  
          Finishing the phased upgrade
    5. Performing an automated VCS upgrade using response files
      1.  
        Upgrading VCS using response files
      2.  
        Response file variables to upgrade VCS
      3.  
        Sample response file for full upgrade of VCS
  5. Section V. Adding and removing cluster nodes
    1. Adding a node to a single-node cluster
      1. Adding a node to a single-node cluster
        1. Setting up a node to join the single-node cluster
          1.  
            Installing VxVM or VxFS if necessary
        2.  
          Installing and configuring Ethernet cards for private network
        3.  
          Configuring the shared storage
        4.  
          Bringing up the existing node
        5.  
          Creating configuration files
        6.  
          Starting LLT and GAB
        7.  
          Reconfiguring VCS on the existing node
        8.  
          Verifying configuration on both nodes
    2. Adding a node to a multi-node VCS cluster
      1.  
        Adding nodes using the VCS installer
      2. Manually adding a node to a cluster
        1.  
          Setting up the hardware
        2.  
          Installing the VCS software manually when adding a node
        3. Setting up the node to run in secure mode
          1.  
            Configuring the authentication broker on node sys5
        4.  
          Configuring LLT and GAB when adding a node to the cluster
        5. Configuring I/O fencing on the new node
          1.  
            Preparing to configure I/O fencing on the new node
          2. Configuring server-based fencing on the new node
            1.  
              Adding the new node to the vxfen service group
          3.  
            Starting I/O fencing on the new node
        6.  
          Adding the node to the existing cluster
        7.  
          Starting VCS and verifying the cluster
        8. Adding a node using response files
          1.  
            Response file variables to add a node to a VCS cluster
          2.  
            Sample response file for adding a node to a VCS cluster
    3. Removing a node from a VCS cluster
      1. Removing a node from a VCS cluster
        1.  
          Verifying the status of nodes and service groups
        2.  
          Deleting the departing node from VCS configuration
        3.  
          Modifying configuration files on each remaining node
        4.  
          Removing the node configuration from the CP server
        5.  
          Removing security credentials from the leaving node
        6.  
          Unloading LLT and GAB and removing InfoScale Availability or Enterprise on the departing node
  6. Section VI. Installation reference
    1. Appendix A. Services and ports
      1.  
        About InfoScale Enterprise services and ports
    2. Appendix B. Configuration files
      1.  
        About the LLT and GAB configuration files
      2.  
        About the AMF configuration files
      3. About the VCS configuration files
        1.  
          Sample main.cf file for VCS clusters
        2.  
          Sample main.cf file for global clusters
      4.  
        About I/O fencing configuration files
      5. Sample configuration files for CP server
        1.  
          Sample main.cf file for CP server hosted on a single node that runs VCS
        2.  
          Sample main.cf file for CP server hosted on a two-node SFHA cluster
        3.  
          Sample CP server configuration (/etc/vxcps.conf) file output
      6. Tuning LLT variables for FSS environments
        1.  
          Tuning LLT variables for Ethernet links
    3. Appendix C. Configuring LLT over UDP
      1. Using the UDP layer for LLT
        1.  
          When to use LLT over UDP
      2. Manually configuring LLT over UDP using IPv4
        1.  
          Broadcast address in the /etc/llttab file
        2.  
          The link command in the /etc/llttab file
        3.  
          The set-addr command in the /etc/llttab file
        4.  
          Selecting UDP ports
        5.  
          Configuring the netmask for LLT
        6.  
          Configuring the broadcast address for LLT
        7.  
          Sample configuration: direct-attached links
        8.  
          Sample configuration: links crossing IP routers
      3. Manually configuring LLT over UDP using IPv6
        1.  
          The link command in the /etc/llttab file
        2.  
          The set-addr command in the /etc/llttab file
        3.  
          Selecting UDP ports
        4.  
          Sample configuration: direct-attached links
        5.  
          Sample configuration: links crossing IP routers
      4.  
        LLT over UDP sample /etc/llttab
    4. Appendix D. Migrating LLT links from IPv4 to IPv6 or dual-stack
      1.  
        About migrating the LLT links from IPv4 to IPv6 or to a dual-stack network
      2.  
        Review the current configuration
      3.  
        Meet the prerequisites for migration
      4.  
        Adding a new node to an existing cluster
      5.  
        Migrating LLT links to IPv6 or dual-stack when LLT is configured over UDP using IPv4
    5. Appendix E. Configuring the secure shell or the remote shell for communications
      1.  
        About configuring secure shell or remote shell communication modes before installing products
      2.  
        Manually configuring passwordless ssh
      3.  
        Setting up ssh and rsh connection using the installer -comsetup command
      4.  
        Setting up ssh and rsh connection using the pwdutil.pl utility
      5.  
        Restarting the ssh session
      6.  
        Enabling rsh for AIX
    6. Appendix F. Installation script options
      1.  
        Installation script options
    7. Appendix G. Troubleshooting VCS configuration
      1.  
        Restarting the installer after a failed network connection
      2.  
        Cannot launch the cluster view link
      3.  
        Starting and stopping processes for the InfoScale products
      4.  
        Installer cannot create UUID for the cluster
      5.  
        LLT startup script displays errors
      6.  
        The vxfentsthdw utility fails for Active/Passive arrays when you test disks in raw format
      7.  
        The vxfentsthdw utility fails when SCSI TEST UNIT READY command fails
      8.  
        Issues during fencing startup on VCS cluster nodes set up for server-based fencing
    8. Appendix H. Sample VCS cluster setup diagrams for CP server-based I/O fencing
      1. Configuration diagrams for setting up server-based I/O fencing
        1.  
          Two unique client clusters served by 3 CP servers
        2.  
          Client cluster served by highly available CPS and 2 SCSI-3 disks
        3.  
          Two node campus cluster served by remote CP server and 2 SCSI-3 disks
        4.  
          Multiple client clusters served by highly available CP server and 2 SCSI-3 disks
    9. Appendix I. Changing NFS server major numbers for VxVM volumes
      1.  
        Changing NFS server major numbers for VxVM volumes
    10. Appendix J. Upgrading the Steward process
      1.  
        Upgrading the Steward process

Finishing the phased upgrade

Complete the following procedure to complete the upgrade.

To finish the upgrade

  1. Upgrade the cluster protocol version by performing the following tasks sequentially:

    • Identify the current cluster protocol version.

      haclus -version -info

    • Check whether the current version is compatible with the newer cluster version and whether it can be upgraded successfully.

      haclus -version -verify <newer-cluster-version>

      For example:

      # /opt/VRTSvcs/bin/haclus -version -verify 8.0.0.0000

    • Upgrade the cluster to the newer protocol version.

      haclus -version -update <newer-cluster-version>

      For example:

      # /opt/VRTSvcs/bin/haclus -version -update 8.0.0.0000

  2. Verify that the cluster UUID is the same on the nodes in the second subcluster and the first subcluster. Run the following command to display the cluster UUID:
    # /opt/VRTSvcs/bin/uuidconfig.pl  
-clus -display node1 [node2 ...]

    If the cluster UUID differs, manually copy the cluster UUID from a node in the first subcluster to the nodes in the second subcluster. For example:

    # /opt/VRTSvcs/bin/uuidconfig.pl [-rsh] -clus 
-copy -from_sys node01 -to_sys node03 node04
  3. Reboot the node03 and node04 in the second subcluster.
    # /usr/sbin/shutdown -r

    The nodes in the second subcluster join the nodes in the first subcluster.

  4. In the /etc/default/llt file, change the value of the LLT_START attribute.

    In the /etc/default/gab file, change the value of the GAB_START attribute.

    In the /etc/default/vxfen file, change the value of the VXFEN_START attribute.

    In the /etc/default/vcs file, change the value of the VCS_START attribute. 

    LLT_START = 1    
GAB_START = 1
VXFEN_START =1 
VCS_START =1
  5. Start LLT and GAB. 
    # /etc/init.d/llt.rc start
    # /etc/init.d/gab.rc start
  6. Seed node03 and node04 in the second subcluster. 
    # gabconfig -x
  7. On the second half of the cluster, start VCS:
    # cd /opt/VRTS/install
    # ./installer -start sys3 sys4
  8. Check to see if VCS and its components are up.
    # gabconfig -a
GAB Port Memberships
===============================================================
Port a gen   nxxxnn membership 0123
Port b gen   nxxxnn membership 0123
Port h gen   nxxxnn membership 0123
  9. Run an hastatus -sum command to determine the status of the nodes, service groups, and cluster. 
    # hastatus -sum

-- SYSTEM STATE
-- System          State           Frozen

A  node01          RUNNING         0
A  node02          RUNNING         0
A  node03          RUNNING         0
A  node04          RUNNING         0

-- GROUP STATE
-- Group    System    Probed   AutoDisabled   State
B  sg1      node01    Y        N              ONLINE
B  sg1      node02    Y        N              ONLINE
B  sg1      node03    Y        N              ONLINE
B  sg1      node04    Y        N              ONLINE
B  sg2      node01    Y        N              ONLINE
B  sg2      node02    Y        N              ONLINE
B  sg2      node03    Y        N              ONLINE
B  sg2      node04    Y        N              ONLINE
B  sg3      node01    Y        N              ONLINE
B  sg3      node02    Y        N              OFFLINE
B  sg3      node03    Y        N              OFFLINE
B  sg3      node04    Y        N              OFFLINE
B  sg4      node01    Y        N              OFFLINE
B  sg4      node02    Y        N              ONLINE
B  sg4      node03    Y        N              OFFLINE
B  sg4      node04    Y        N              OFFLINE
  10. After the upgrade is complete, start the VxVM volumes (for each disk group) and mount the VxFS file systems.

In this example, you have performed a phased upgrade of VCS. The service groups were down when you took them offline on node03 and node04, to the time VCS brought them online on node01 or node02.