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As your processing needs change, you may want to add satellites to an existing OpenVMS Cluster, or you may want to change an OpenVMS Cluster that is based on one interconnect (such as the CI or DSSI interconnect, or HSC subsystem) to include several interconnects.
Table 8-8 describes the operations you can accomplish when you select the CHANGE option from the main menu of the cluster configuration command procedure.
Note: All operations except changing a satellite's LAN (Ethernet or FDDI) hardware address must be executed on the computer whose characteristics you want to change.
Option | Operation Performed |
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Enable the local computer as a disk server | Loads the MSCP server by setting, in MODPARAMS.DAT, the value of the MSCP_LOAD parameter to 1 and the MSCP_SERVE_ALL parameter to 1 or 2. |
Disable the local computer as a disk server | Sets MSCP_LOAD to 0. |
Enable the local computer as a boot server | If you are setting up an OpenVMS Cluster that includes satellites, you must perform this operation once before you attempt to add satellites to the cluster. You thereby enable MOP service for the LAN adapter circuit that the computer uses to service operating system load requests from satellites. When you enable the computer as a boot server, it automatically becomes a disk server (if it is not one already) because it must serve its system disk to satellites. |
Disable the local computer as a boot server | Disables DECnet MOP service for the computer's adapter circuit. |
Enable IP for cluster communications on the local computer | Loads the port driver PEDRIVER by setting the value of the NISCS_LOAD_PEA0 parameter to 1 in MODPARAMS.DAT. Also, sets the value of NISCS_USE_UDP to 1 in MODPARAMS.DAT, which enables loading of the IP configuration files. Creates the cluster security database file, SYS$SYSTEM:[SYSEXE]CLUSTER_AUTHORIZE.DAT, on the local computer's system disk. |
Disable IP for cluster communications on the local computer | Sets NISCS_USE_UDP to 0. |
Enable the LAN for cluster communications on the local computer |
Loads the port driver PEDRIVER by setting the value of the
NISCS_LOAD_PEA0 parameter to 1 in MODPARAMS.DAT. Creates the cluster
security database file, SYS$SYSTEM:[SYSEXE]CLUSTER_AUTHORIZE.DAT, on
the local computer's system disk.
Caution: The VAXCLUSTER system parameter must be set to 2 if the NISCS_LOAD_PEA0 parameter is set to 1. This ensures coordinated access to shared resources in the cluster and prevents accidental data corruption. |
Disable the LAN for cluster communications on the local computer | Sets NISCS_LOAD_PEA0 to 0. |
Enable a quorum disk on the local computer | In MODPARAMS.DAT, sets the DISK_QUORUM system parameter to a device name; sets the value of QDSKVOTES to 1 (default value). |
Disable a quorum disk on the local computer | In MODPARAMS.DAT, sets a blank value for the DISK_QUORUM system parameter; sets the value of QDSKVOTES to 1. |
Change a satellite's LAN hardware address |
Changes a satellite's hardware address if its LAN device needs
replacement. Both the permanent and volatile network databases and
NETNODE_UPDATE.COM are updated on the local computer.
Rule: You must perform this operation on each computer enabled as a boot server for the satellite. |
Enable the local computer as a tape server | Loads the TMSCP server by setting, in MODPARAMS.DAT, the value of the TMSCP_LOAD parameter to 1 and the TMSCP_SERVE_ALL parameter to 1 or 2. |
Disable the local computer as a tape server | Sets TMSCP_LOAD to zero. |
Change the local computer's node allocation class value | Sets a value for the computer's ALLOCLASS parameter in MODPARAMS.DAT. |
Change the local computer's tape allocation class value | Sets a value from 1 to 255 for the computer's TAPE_ALLOCLASS parameter in MODPARAMS.DAT. The default value is zero. You must specify a nonzero tape allocation class parameter if this node is locally connected to a dual-ported tape, or if it will be serving any multiple-host tapes (for example, TF nn or HSC connected tapes) to other cluster members. Satellites usually have TAPE_ALLOCLASS set to zero. |
Change the local computer's port allocation class value | Sets a value for the computer's ALLOCLASS parameter in MODPARAMS.DAT for all devices attached to it. |
Enable MEMORY CHANNEL | Sets MC_SERVICES_P2 to 1 to load the PMDRIVER (PMA0) cluster driver. This system parameter enables MEMORY CHANNEL on the local computer for node-to-node cluster communications. |
Disable MEMORY CHANNEL | Sets MC_SERVICES_P2 to 0 so that the PMDRIVER (PMA0) cluster driver is not loaded. The setting of 0 disables MEMORY CHANNEL on the local computer as the node-to-node cluster communications interconnect. |
You usually need to perform a number of steps before using the cluster configuration command procedure to change the configuration of your existing cluster.
Table 8-9 suggests several typical configuration changes and describes the procedures required to make them.
Task | Procedure |
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Add satellite nodes |
Perform these operations on the computer that will be enabled as a
cluster boot server:
|
Change an existing CI or DSSI cluster to include satellite nodes |
To enable cluster communications over the LAN (Ethernet or FDDI) on all
computers, and to enable one or more computers as boot servers, proceed
as follows:
|
Change an existing LAN-based cluster to include CI and DSSI interconnects |
Before performing the operations described here, be sure that the
computers and HSC subsystems or RF disks you intend to include in your
new configuration are correctly installed and checked for proper
operation.
The method you use to include CI and DSSI interconnects with an existing LAN-based cluster configuration depends on whether your current boot server is capable of being configured as a CI or DSSI computer. Note: The following procedures assume that the system disk containing satellite roots will reside on an HSC disk (for CI configurations) or an RF disk (for DSSI configurations).
|
Convert a standalone computer to an OpenVMS Cluster computer |
Execute either CLUSTER_CONFIG_LAN.COM or CLUSTER_CONFIG.COM on a
standalone computer to perform either of the following operations:
See Example 8-13, which illustrates the use of CLUSTER_CONFIG.COM on standalone computer PLUTO to convert PLUTO to a cluster boot server. If your cluster uses DECdtm services, you must create a transaction log for the computer when you have configured it into your cluster. For step-by-step instructions on how to do this, see the chapter on DECdtm services in the HP OpenVMS System Manager's Manual. |
Enable or disable disk-serving or tape-serving functions | After invoking either CLUSTER_CONFIG_LAN.COM or CLUSTER_CONFIG.COM to enable or disable the disk or tape serving functions, run AUTOGEN with the REBOOT option to reboot the local computer (see Section 8.6.1). |
Note: When the cluster configuration command procedure
sets or changes values in MODPARAMS.DAT, the new values are always
appended at the end of the file so that they override earlier values.
You may want to edit the file occasionally and delete lines that
specify earlier values.
8.4.2 Examples
Examples 8-7 through 8-13 illustrate the use of CLUSTER_CONFIG_LAN.COM to perform the following operations:
Example 8-7 Sample Interactive CLUSTER_CONFIG_LAN.COM Session to Enable the Local Computer as a Disk Server |
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$ @CLUSTER_CONFIG_LAN.COM Cluster/IPCI Configuration Procedure CLUSTER_CONFIG_LAN Version V2.84 Executing on an IA64 System DECnet-Plus is installed on this node. IA64 satellites will use TCP/IP BOOTP and TFTP services for downline loading. TCP/IP is installed and running on this node. Enter a "?" for help at any prompt. If you are familiar with the execution of this procedure, you may want to mute extra notes and explanations by invoking it with "@CLUSTER_CONFIG_LAN BRIEF". BHAGAT is an IA64 system and currently a member of a cluster so the following functions can be performed: MAIN Menu 1. ADD an IA64 node to the cluster. 2. REMOVE a node from the cluster. 3. CHANGE a cluster member's characteristics. 4. CREATE a duplicate system disk for BHAGAT. 5. MAKE a directory structure for a new root on a system disk. 6. DELETE a root from a system disk. 7. EXIT from this procedure. Enter choice [7]: 3 CHANGE Menu 1. Enable BHAGAT as a boot server. 2. Disable BHAGAT as a boot server. 3. Enable a quorum disk for BHAGAT. 4. Disable a quorum disk for BHAGAT. 5. Enable BHAGAT as a disk server. 6. Disable BHAGAT as a disk server. 7. Change BHAGAT's ALLOCLASS value. 8. Enable BHAGAT as a tape server. 9. Disable BHAGAT as a tape server. 10. Change BHAGAT's TAPE_ALLOCLASS value. 11. Change an IA64 satellite node's LAN adapter hardware address. 12. Enable Cluster Communication using IP on BHAGAT. 13. Disable Cluster Communication using IP on BHAGAT. 14. Change BHAGAT's shared SCSI port allocation class value. 15. Reset an IA64 satellite node's boot environment file protections. 16. Return to MAIN menu. Enter choice [16]: 5 Enter a value for BHAGAT's ALLOCLASS parameter [1]: The configuration procedure has completed successfully. BHAGAT has been enabled as a disk server. In MODPARAMS.DAT: MSCP_LOAD has been set to 1 MSCP_SERVE_ALL has been set to 2 Please run AUTOGEN to reboot BHAGAT: $ @SYS$UPDATE:AUTOGEN GETDATA REBOOT If you have changed BHAGAT's ALLOCLASS value, you must reconfigure the cluster, using the procedure described in the OpenVMS Cluster Systems manual. |
Example 8-8 Sample Interactive CLUSTER_CONFIG_LAN.COM Session to Change the Local Computer's ALLOCLASS Value |
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$ @CLUSTER_CONFIG_LAN.COM Cluster/IPCI Configuration Procedure CLUSTER_CONFIG_LAN Version V2.84 Executing on an IA64 System DECnet-Plus is installed on this node. IA64 satellites will use TCP/IP BOOTP and TFTP services for downline loading. TCP/IP is installed and running on this node. Enter a "?" for help at any prompt. If you are familiar with the execution of this procedure, you may want to mute extra notes and explanations by invoking it with "@CLUSTER_CONFIG_LAN BRIEF". BHAGAT is an IA64 system and currently a member of a cluster so the following functions can be performed: MAIN Menu 1. ADD an IA64 node to the cluster. 2. REMOVE a node from the cluster. 3. CHANGE a cluster member's characteristics. 4. CREATE a duplicate system disk for BHAGAT. 5. MAKE a directory structure for a new root on a system disk. 6. DELETE a root from a system disk. 7. EXIT from this procedure. Enter choice [7]: 3 CHANGE Menu 1. Enable BHAGAT as a boot server. 2. Disable BHAGAT as a boot server. 3. Enable a quorum disk for BHAGAT. 4. Disable a quorum disk for BHAGAT. 5. Enable BHAGAT as a disk server. 6. Disable BHAGAT as a disk server. 7. Change BHAGAT's ALLOCLASS value. 8. Enable BHAGAT as a tape server. 9. Disable BHAGAT as a tape server. 10. Change BHAGAT's TAPE_ALLOCLASS value. 11. Change an IA64 satellite node's LAN adapter hardware address. 12. Enable Cluster Communication using IP on BHAGAT. 13. Disable Cluster Communication using IP on BHAGAT. 14. Change BHAGAT's shared SCSI port allocation class value. 15. Reset an IA64 satellite node's boot environment file protections. 16. Return to MAIN menu. Enter choice [16]: 7 Enter a value for BHAGAT's ALLOCLASS parameter [1]: 2 The configuration procedure has completed successfully. Since you have changed BHAGAT's ALLOCLASS value, you must reconfigure the cluster, using the procedure described in the "OpenVMS Cluster Systems" manual. This includes running AUTOGEN for BHAGAT as shown below, before rebooting the cluster: $ @SYS$UPDATE:AUTOGEN GETDATA REBOOT If you have changed BHAGAT's ALLOCLASS value, you must reconfigure the cluster, using the procedure described in the OpenVMS Cluster Systems manual. |
Example 8-9 Sample Interactive CLUSTER_CONFIG_LAN.COM Session to Enable the Local Computer as a Boot Server |
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$ @CLUSTER_CONFIG_LAN.COM Cluster/IPCI Configuration Procedure CLUSTER_CONFIG_LAN Version V2.84 Executing on an IA64 System DECnet-Plus is installed on this node. IA64 satellites will use TCP/IP BOOTP and TFTP services for downline loading. TCP/IP is installed and running on this node. Enter a "?" for help at any prompt. If you are familiar with the execution of this procedure, you may want to mute extra notes and explanations by invoking it with "@CLUSTER_CONFIG_LAN BRIEF". BHAGAT is an IA64 system and currently a member of a cluster so the following functions can be performed: MAIN Menu 1. ADD an IA64 node to the cluster. 2. REMOVE a node from the cluster. 3. CHANGE a cluster member's characteristics. 4. CREATE a duplicate system disk for BHAGAT. 5. MAKE a directory structure for a new root on a system disk. 6. DELETE a root from a system disk. 7. EXIT from this procedure. Enter choice [7]: 3 CHANGE Menu 1. Enable BHAGAT as a boot server. 2. Disable BHAGAT as a boot server. 3. Enable a quorum disk for BHAGAT. 4. Disable a quorum disk for BHAGAT. 5. Enable BHAGAT as a disk server. 6. Disable BHAGAT as a disk server. 7. Change BHAGAT's ALLOCLASS value. 8. Enable BHAGAT as a tape server. 9. Disable BHAGAT as a tape server. 10. Change BHAGAT's TAPE_ALLOCLASS value. 11. Change an IA64 satellite node's LAN adapter hardware address. 12. Enable Cluster Communication using IP on BHAGAT. 13. Disable Cluster Communication using IP on BHAGAT. 14. Change BHAGAT's shared SCSI port allocation class value. 15. Reset an IA64 satellite node's boot environment file protections. 16. Return to MAIN menu. Enter choice [16]: 1 Enter a value for BHAGAT's ALLOCLASS parameter [1]: [Return] The configuration procedure has completed successfully. BHAGAT has been enabled as a boot server. Disk serving and LAN capabilities are enabled automatically. If BHAGAT was not previously set up as a disk server, please run AUTOGEN to reboot BHAGAT: $ @SYS$UPDATE:AUTOGEN GETDATA REBOOT If you have changed BHAGAT's ALLOCLASS value, you must reconfigure the cluster, using the procedure described in the OpenVMS Cluster Systems manual. |
Example 8-10 Sample Interactive CLUSTER_CONFIG_LAN.COM Session to Change a Satellite's Hardware Address |
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$ @CLUSTER_CONFIG_LAN.COM Cluster/IPCI Configuration Procedure CLUSTER_CONFIG_LAN Version V2.84 Executing on an IA64 System DECnet-Plus is installed on this node. IA64 satellites will use TCP/IP BOOTP and TFTP services for downline loading. TCP/IP is installed and running on this node. Enter a "?" for help at any prompt. If you are familiar with the execution of this procedure, you may want to mute extra notes and explanations by invoking it with "@CLUSTER_CONFIG_LAN BRIEF". BHAGAT is an IA64 system and currently a member of a cluster so the following functions can be performed: MAIN Menu 1. ADD an IA64 node to the cluster. 2. REMOVE a node from the cluster. 3. CHANGE a cluster member's characteristics. 4. CREATE a duplicate system disk for BHAGAT. 5. MAKE a directory structure for a new root on a system disk. 6. DELETE a root from a system disk. 7. EXIT from this procedure. Enter choice [7]: 3 CHANGE Menu 1. Enable BHAGAT as a boot server. 2. Disable BHAGAT as a boot server. 3. Enable a quorum disk for BHAGAT. 4. Disable a quorum disk for BHAGAT. 5. Enable BHAGAT as a disk server. 6. Disable BHAGAT as a disk server. 7. Change BHAGAT's ALLOCLASS value. 8. Enable BHAGAT as a tape server. 9. Disable BHAGAT as a tape server. 10. Change BHAGAT's TAPE_ALLOCLASS value. 11. Change an IA64 satellite node's LAN adapter hardware address. 12. Enable Cluster Communication using IP on BHAGAT. 13. Disable Cluster Communication using IP on BHAGAT. 14. Change BHAGAT's shared SCSI port allocation class value. 15. Reset an IA64 satellite node's boot environment file protections. 16. Return to MAIN menu. Enter choice [16]: 11 What is the node's SCS node name? gomthi Note: The current hardware address entry for GOMTHI is 00-30-6E-4C-BB-1A. What is GOMTHI's new LAN adapter hardware address? 00-30-6E-4C-BA-2A The configuration procedure has completed successfully. |
Example 8-11 Sample Interactive CLUSTER_CONFIG_LAN.COM Session to Enable the Local Computer as a Tape Server |
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$ @CLUSTER_CONFIG_LAN.COM Cluster/IPCI Configuration Procedure CLUSTER_CONFIG_LAN Version V2.84 Executing on an IA64 System DECnet-Plus is installed on this node. IA64 satellites will use TCP/IP BOOTP and TFTP services for downline loading. TCP/IP is installed and running on this node. Enter a "?" for help at any prompt. If you are familiar with the execution of this procedure, you may want to mute extra notes and explanations by invoking it with "@CLUSTER_CONFIG_LAN BRIEF". BHAGAT is an IA64 system and currently a member of a cluster so the following functions can be performed: MAIN Menu 1. ADD an IA64 node to the cluster. 2. REMOVE a node from the cluster. 3. CHANGE a cluster member's characteristics. 4. CREATE a duplicate system disk for BHAGAT. 5. MAKE a directory structure for a new root on a system disk. 6. DELETE a root from a system disk. 7. EXIT from this procedure. Enter choice [7]: 3 CHANGE Menu 1. Enable BHAGAT as a boot server. 2. Disable BHAGAT as a boot server. 3. Enable a quorum disk for BHAGAT. 4. Disable a quorum disk for BHAGAT. 5. Enable BHAGAT as a disk server. 6. Disable BHAGAT as a disk server. 7. Change BHAGAT's ALLOCLASS value. 8. Enable BHAGAT as a tape server. 9. Disable BHAGAT as a tape server. 10. Change BHAGAT's TAPE_ALLOCLASS value. 11. Change an IA64 satellite node's LAN adapter hardware address. 12. Enable Cluster Communication using IP on BHAGAT. 13. Disable Cluster Communication using IP on BHAGAT. 14. Change BHAGAT's shared SCSI port allocation class value. 15. Reset an IA64 satellite node's boot environment file protections. 16. Return to MAIN menu. Enter choice [16]: 8 Enter a value for BHAGAT's TAPE_ALLOCLASS parameter [0]: [Return] Should BHAGAT serve any tapes it sees, local and remote [Y]? [Return] BHAGAT has been enabled as a tape server. In MODPARAMS.DAT, TMSCP_LOAD has been set to 1 TMSCP_SERVE_ALL has been set to 1 Please run AUTOGEN to reboot BHAGAT: $ @SYS$UPDATE:AUTOGEN GETDATA REBOOT If you have changed BHAGAT's TAPE_ALLOCLASS value, you must reconfigure the cluster, using the procedure described in the "OpenVMS Cluster Systems" manual. |
Example 8-12 Sample Interactive CLUSTER_CONFIG_LAN.COM Session to Change the Local Computer's TAPE_ALLOCLASS Value |
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$ @CLUSTER_CONFIG_LAN.COM Cluster/IPCI Configuration Procedure CLUSTER_CONFIG_LAN Version V2.84 Executing on an IA64 System DECnet-Plus is installed on this node. IA64 satellites will use TCP/IP BOOTP and TFTP services for downline loading. TCP/IP is installed and running on this node. Enter a "?" for help at any prompt. If you are familiar with the execution of this procedure, you may want to mute extra notes and explanations by invoking it with "@CLUSTER_CONFIG_LAN BRIEF". BHAGAT is an IA64 system and currently a member of a cluster so the following functions can be performed: MAIN Menu 1. ADD an IA64 node to the cluster. 2. REMOVE a node from the cluster. 3. CHANGE a cluster member's characteristics. 4. CREATE a duplicate system disk for BHAGAT. 5. MAKE a directory structure for a new root on a system disk. 6. DELETE a root from a system disk. 7. EXIT from this procedure. Enter choice [7]: 3 CHANGE Menu 1. Enable BHAGAT as a boot server. 2. Disable BHAGAT as a boot server. 3. Enable a quorum disk for BHAGAT. 4. Disable a quorum disk for BHAGAT. 5. Enable BHAGAT as a disk server. 6. Disable BHAGAT as a disk server. 7. Change BHAGAT's ALLOCLASS value. 8. Enable BHAGAT as a tape server. 9. Disable BHAGAT as a tape server. 10. Change BHAGAT's TAPE_ALLOCLASS value. 11. Change an IA64 satellite node's LAN adapter hardware address. 12. Enable Cluster Communication using IP on BHAGAT. 13. Disable Cluster Communication using IP on BHAGAT. 14. Change BHAGAT's shared SCSI port allocation class value. 15. Reset an IA64 satellite node's boot environment file protections. 16. Return to MAIN menu. Enter choice [16]: 10 Enter a value for BHAGAT's TAPE_ALLOCLASS parameter [0]: 1 If you have changed BHAGAT's TAPE_ALLOCLASS value, you must reconfigure the cluster, using the procedure described in the "OpenVMS Cluster Systems" Manual. This includes running AUTOGEN for BHAGAT as shown below, before rebooting the cluster: $ @SYS$UPDATE:AUTOGEN GETDATA REBOOT If you have changed BHAGAT's TAPE_ALLOCLASS value, you must reconfigure the cluster, using the procedure described in the OpenVMS Cluster Systems manual. |
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