NIM Prerequisites

The following list comprises NIM environment requirements and restrictions:

Each NIM master server must have a NIM adapter installed.
Alternate NIM masters are not supported.
NIM master servers must be available for logon using ssh.
NIM clients can only be registered to one NIM master.
NIM clients must be registered with the NIM master.
NIM clients must be configured with TCP/IP.
NIM clients must initially be configured to permit rsh (unsecure) or nimsh (secure) communication with the NIM master.
nimsh clients must be running on the client computer if the NIM machine resource defines the nimsh protocol.
All imaging jobs are performed with the option "Remain NIM client after install" set, so that NIM clients can be reimaged without additional configuration.
NIM clients must be on the same subnet as the NIM master, due to TFTP network restrictions.
NIM clients must be capable of being imaged by the NIM master using the NIM command line interface.
The NIM master must be configured to be able to qualify all of its NIM clients' host names.
When provisioning to a new or selected LPAR, the NIM adapter updates the NIM system MAC address to the LPAR virtual Ethernet adapter MAC address.