34.5.2 Notes about using the multi-node function
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If you are using the multi-node function, we recommend that you execute the adbmodarea command while HADB servers are running on all nodes in the multi-node configuration. Execute the adbmodarea command on the HADB server on the master node. If any node has stopped, more complicated procedure is required for adding and expanding data DB areas. For details about the execution procedure, see the topic Adding, deleting, or expanding data DB areas (when the multi-node function is being used) in the HADB Setup and Operation Guide.
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To add or expand a DB area while the multi-node function is being used, DB area files to be added must be allocated to block special files. The block special files must be able to be accessed from all nodes by using the same path name. Therefore, use block special files that include WWN. For details, see 20.3.2 Creating DB directories (when using the multi-node function).
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If using SCSI reservation for shared disk, you need to change the operand specified in the servers file for HA Monitor when you perform one of the following operations:
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Adding a DB area by using the adbmodarea command
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Expanding a DB area by using the adbmodarea command
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Deleting a DB area by using the adbmodarea command
Therefore, you need to terminate the HADB server in the multi-node configuration. For details about the operation procedure, see Adding, deleting, or expanding data DB areas (when the multi-node function is being used) in the HADB Setup and Operation Guide.
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