Originally posted by: SystemAdmin

A customer using a B80 on AIX 4.3.3 has purchased a P5 520 to provide Cold Standby functionality. Currently they are tied to AIX 4.3.3 through legacy systems, and would require major work to utilise AIX 5.
Whilst advising against building any new systems on AIX 4.3.3, I have been asked if the 520 can run AIX 4.3.3 .
Looking for a definitive answer.

Thanks.
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Originally posted by: StevieL

From the p520 technical overview and intro pdf.

The p5-520 requires AIX 5L Version 5.3 or AIX 5L Version 5.2 Maintenance Package
5200-04 (IY56722) or later. The use of the Advanced POWER Virtualization feature requires AIX 5L Version 5.3.

pg 43

I don't think any of IBM's current System p5 range will run AIX 4.3.3

Regards

S.
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Originally posted by: SystemAdmin

Found the info you steered me to and updated the customer.

Thanks.
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Originally posted by: VirtualGreg

The B80 can run AIX 5.2 or 5.3. Since AIX 4.3 is no longer supported by IBM you need to choose between application support (assuming it still is support by that vendor) and OS support. The choice of course will be in favour of supporting the application. If neither are supported, I'd be that the application will run unchanged on AIX 5.3 unless it's 64-bit (in which case a one time recompile is needed). If it's 32-bit you are good to go. You could try running the application on AIX 5.3 on the 520 and later updating the B80 to 5.3. After all, since AIX 4.3 is not supported and if you application is in the same boat, you have nothing to lose.
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