Tanti Technology

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Multi-platform UNIX systems consultant and administrator in mutualized and virtualized environments I have 4.5+ years experience in AIX system Administration field. This site will be helpful for system administrator in their day to day activities.Your comments on posts are welcome.This blog is all about IBM AIX Unix flavour. This blog will be used by System admins who will be using AIX in their work life. It can also be used for those newbies who want to get certifications in AIX Administration. This blog will be updated frequently to help the system admins and other new learners. DISCLAIMER: Please note that blog owner takes no responsibility of any kind for any type of data loss or damage by trying any of the command/method mentioned in this blog. You may use the commands/method/scripts on your own responsibility. If you find something useful, a comment would be appreciated to let other viewers also know that the solution/method work(ed) for you.

Friday, 8 November 2013

How to migrating to AIX 6.1 with nimadm?



Here I have provided the steps in simplest way in the Interview perspective. If you are familiar with AIX and NIM, you can understand the below steps very easily.

1. Need Nim Master server with the 6.1 version --> "oslevel -s"

2. Master having alt_disk package installed  --> "lslpp -l bos.alt....'

3.  LPP and SPOT should be in high level (OS ver = 6.1) --> "lsnim -c resources"

4. NIMADMVG should create on the NIM master server --> "lsvg -l nimadmvg"

5. Nim master should have the space --> "check space = df -gt"

6. Client needs to define with the master --> "smitty nim"

7. Take mksysb backup of the target client server --> "mksysb"

8. RSH should be working --> "chsubserver -a -v shell -p tcp6 -r inetd"

9. Addtional disk needs to be there --> "lspv"

10. Build /etc/niminfo on the client server using --> "niminit -a master= -a name=

11. nimadm –j -c -s -l -d -Y

    FYI- The below steps are occurred while we executing the "nimadm" command

11.a) Alt disk created on the target server.
11.b) Cache FS has been created on the Nim server.
11.c) RSH has been enabled.
11.d) System config has been saved.
11.e) Migrating the package (lpp) to the new higher version.
11.f) Post Migration has been checked.
11.g) Boot logical volume has been created.
11.h) Sync the migrated higher version package from NIM server to target server.
11.i) Remove the cache filesystem on the nim server.
11.j) Bootlist has been initiated.
11.k) Clean up process has been initiated.

12. change bootlevel --> "bootlist" and reboot --> shutdown -Fr and confirm --> "oslevel -s"

13. disable the RSH  --> "chsubserver -d -v shell -p tcp6 -r inetd"

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