Managing the NIM master

Tasks for managing the NIM master are described.

For additional information on NFS V4, see Network File System in Networks and communication management.

Deactivating the NIM master and removing the NIM master fileset
After the NIM master fileset has been installed, the master activated, and the master object defined in the NIM database, this object, and hence the master fileset itself, cannot be removed. The master must be deactivated before the NIM master fileset can be removed.
Increasing the number of hosts to which NIM can NFS-export a resource
Follow these instructions to increase the number of hosts to which NIM can NFS-export a resource.
Controlling the asynchronous behavior of NIM operations
Certain NIM operations are asynchronous, meaning that NIM master might initiate the operation on the client, but does not wait for the operation to finish. The reason for this asynchronous behavior is because the NIM operation running on the client is typically time-consuming.
Suppressing output from NIM operations
Follow these instructions to suppress output from NIM operations.
Reducing space requirements for NIM resources
It is not unusual for resources such as the SPOT and lpp_source to take several hundred megabytes of storage space on a NIM server. You can reduce space consumption significantly on resource servers by creating /usr SPOTs and defining CD-ROM file-system directories as lpp_sources.
Obtaining support for multiple mksysb operations in NIM
During the allocation of NIM mksysb images, only the file is exported to the NFS clients. However, during mksysb creation, the parent directory is also exported. If you use that filesystem to create a mksysb image of a system while another system is restoring a mksysb image from that filesystem, you will get NFS errors.
Saving system backup information
When you are defining a mksysb NIM resource using the nim -o define -t mksysb command, the -a mksysb_flags=xxx attribute can be given the -p option, which prevents the mksysb image from being compressed.

Parent topic: Managing NIM