NIM master restore using another NIM master

Summary

Procedure to Restore a NIM_master-A mksysb using another NIM_master-B:

1. Take mksysb of the NIM_master-A and ftp the mksysb file to NIM_master-B:
2. Create mksysb resource for mksysb
#smitty nim_mkres or
#nim -o define -t mksysb -a server=master -a location=/export/backups/client_mksysb mksysb_res1

3. Create spot using mksysb resource
#smitty nim_mkres
#nim -o define -t spot -a source=<mksysb-resource> -a server=master -a location=</export/spot-location> <spot-name>

4. Define NIM_master-A as client to NIM_master-B
#smitty nim_mkmac

5. Let's start bos_install using mksysb and spot resource for NIM_master-A
# smit nim_bosinst.
From the SMIT interface, select the mksysb resource for the BOS installation.
Select the SPOT resource for the BOS installation.
Select the Accept New License Agreements option, and select Yes. Accept the default values for the remaining menu options.
Select Remain NIM Client after Install option and select No.
Select Initiate reboot and Installation now and select Yes
Press Enter to confirm and begin the NIM client installation.

6. After restore completed successfully, login to NIM_master-A and run below commands:

# mv /etc/niminfo /etc/niminfo.old
# nimconfig -r

7. Run #lsnim -l which shows no errors.