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AIX Best Bits - Survey Results

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Nigel defined 32 "best bits" of AIX then asked many people to vote on their favourites. These are the results.


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For details of each of these AIX Best Bits see  


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AIX Best Bits List

Before the results a few observations:

Questions: How many of these features are originally in the AT&T UNIX 5.2 and 5.3 from which AIX was developed?

Answer: None of them as they are all IBM improvements.

Question: Which are long-term AIX features (i.e excluding feature introduced with AIX 6 and 7)?

Answer: Roughly half of them and many from AIX 3 which was the first to run on POWER processors.

Long term parts list

And the New Features:

new part list

And the Winners from 178 Voters with 1158 Votes cast are ...

The winners


  • Very interesting results.
  • I am proud that nmon is in the top three but that might have been a side effect of me running the Survey - we may never know.
  • Four in the top eight have been in AIX for decades (smitty, NIM, mksysb and LVM)
  • The other four have been in AIX for over 10 years! (PowerVM, nmon, DLPAR and LPM).
next 5


Clearly, it is hard for new features to compete with the old established favourites but I think these are pretty high rankings for the new features.

Next time!! we might ask what are the favourites out of the big new features introduced in the past 5 or 10 years. I would guess PowerVC, Enterprise Pools and Live Kernel Update would be the winners but also AIX Flash Cache and Shared Storage Pools would feature strongly too.

so many great parts

Please help in raising AIX’s profile via Social Media and say why you like it today.

Thanks to everyone that voted.

For the record this is the vote percentages:

All votes


    Additional Information

    If you find errors or have question, email me: 

    • Subject: AIX Best Bits
    • E-mail: n a g @ u k . i b m . c o m  

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    Document Location


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    Document Information

    Modified date:
    26 November 2019