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

Response file variables to upgrade VCS

Table: Response file variables specific to upgrading VCS lists the response file variables that you can define to upgrade VCS.

Table: Response file variables specific to upgrading VCS

Variable

List or Scalar

Description

CFG{opt}{upgrade}

Scalar

Upgrades VCS filesets.

(Required)

CFG{accepteula}

Scalar

Specifies whether you agree with EULA.pdf on the media.

(Required)

CFG{systems}

List

List of systems on which the product is to be upgraded.

(Required)

CFG{defaultaccess}

Scalar (optional)

Defines if the user chooses to grant read access for VCS cluster information to everyone.

CFG{key}

Scalar (optional)

Stores the keyless key you want to register.

CFG{vcs_allowcomms}

Scalar

Indicates whether or not to start LLT and GAB when you set up a single-node cluster. The value can be 0 (do not start) or 1 (start).

(Required)

CFG{opt}{keyfile}

Scalar

Defines the location of an ssh keyfile that is used to communicate with all remote systems.

(Optional)

CFG{opt}{pkgpath}

Scalar

Defines a location, typically an NFS mount, from which all remote systems can install product filesets. The location must be accessible from all target systems.

(Optional)

CFG{opt}{tmppath}

Scalar

Defines the location where a working directory is created to store temporary files and the filesets that are needed during the install. The default location is /opt/VRTStmp.

(Optional)

CFG{secusrgrps}

List

Defines the user groups which get read access to the cluster.

(Optional)

CFG{opt}{logpath}

Scalar

Mentions the location where the log files are to be copied. The default location is /opt/VRTS/install/logs.

Note:

The installer copies the response files and summary files also to the specified logpath location.

(Optional)

CFG{opt}{rsh}

Scalar

Defines that rsh must be used instead of ssh as the communication method between systems.

(Optional)

CFG{opt}{online_upgrade}

Scalar

Set the value to 1 for online upgrades.

CFG{subcluster} {#}

List

Defines the series of the sub-cluster division. The index # indicates the order in which the rolling upgrade is performed and hence you must define it you are upgrading a cluster that run different versions of the VCS engine.

The index # value starts from 0.

Each subcluster entry in the response file defines a list of nodes to be upgraded in that subcluster.

(Required)