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SXOutil

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This phase of the Cluster/iX product consists of a utility program called SXOutil that is used to create and initialize a master/member of the cluster volume set. In addition, it provides other commands that grant access to the cluster volume set from any computer within the cluster configuration.

NOTE: The user requires CV (create volumes) or SM (system manager) capability to execute the commands within SXOutil.

The following commands are currently available in SXOutil. For a complete description of the command and its usage please refer to the help facility within SXOutil.

SXOMAKELABEL

The SXOMAKELABEL command is used to create the cluster data structure, which include "Ownership label," associated audit trail information and history records. "Ownership Label" consists of the unique HPSUSAN number of the system and the Root UFID of the System Volume Set. This command will set the "Ownership Label" to that of the computer where the command was issued. The "Ownership Label" is assigned only to the MASTER volume of the volume set created and not the member volumes.

Creation of "Ownership Label" prevents two systems from trying to mount the same volume set simultaneously. Thus, disk operations are allowed only on disk volumes owned by the system.

NOTE: The operator is responsible for verifying that this computer is the only one that has access to the volume set until after the volume set has been created and the data structures built using this command. After these structures are built, the system administrator can then configure ldevs on the other computers that will be in the cluster configuration.

SXOSETLABEL

The SXOSETLABEL command is used to assign/switch a user defined "Ownership Label" on the master volume of the volume set. The value of the HPSUSAN and Root UFID of the ldev 1 is the default value for the "Ownership Label."

This command can be initiated from any system belonging to the cluster. The default value of the "Ownership Label" will be assigned only to cluster volumes previously created by any system on this cluster. The MASTER volume should be in LONER state to execute this command. This operation is also known as switchover.

SXOREMOVELABEL

The SXOREMOVELABEL command removes the "Ownership Label" from the cluster volume set, thus converting it into non-cluster volume set.

SXOutil also allows the execution of all CI commands and other utilities within this utility.

In addition to the above commands, SXOutil provides the following commands:

  • Listredo

  • Redo

  • Help

  • Log

  • Verify

  • Exit



Configuration

DSTAT