Re: Good Catch-All HMC version

[Tsvetan Marinov <tsetso.marinov@xxxxxxxxx>]

Hi Roberto,

You can use the *IBM Server Firmware and HMC Code Wizard * so you can check
what is best combination for yo.

http://www-912.ibm.com/s_dir/slkbase.NSF/DocNumber/408316083

Regards


On Thu, Apr 17, 2014 at 1:27 AM, Roberto José Etcheverry Romero <
yggdrasil.raiker@xxxxxxxxx> wrote:

> Hi All,
>
> I just got my first Power7 machine and when hooking it up to my HMC i found
> the "version mismatch" error. That particular HMC is at v7.7.3 and the fw
> on the p7(al740_110) requires v7.7.4
> Taking into account that my lab has machines ranging from the venerable 150
> (which i'm re-installing to attempt data rescue of a client's tapes) to
> this shiny new/used (ibm remarketing) 720 (8202-E4C) i was wondering which
> version of HMC code is recommended to support this wide range of machines
> (I mean, of course, Power5 to Power7+, not the 150).
> I also got a new HMC so i have one CR3 and one CR4 so i could have two
> versions running (i know the recommended level for P5 is v7.3..5 but my
> v7.7.3 worked without problem with them).
> To make it short. Do i install v7.7.4 or do i go all the way to v7.7.8? In
> the readme i saw some info about partition info taking more space on .8
> which meant that some systems wouldn't be able to upgrade And that managed
> systems managed by that version can't be later managed by older versions (i
> believe that it only means that partition info isn't backwards compatible,
> a full reset of the FSP should make it work again with any supported HMC
> level, right?)
>
> Thanks a lot!
>
> PS: What does ECA 331 entail? searching for data on supported HMC levels
> for that i found the advice regarding fw update on p7 and that ECA...
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