[SunHELP] How to tell if Sombra CPU's are installed?

[Nick Steel. (lists)]

Thanks for all the answers guys. I guess I'm going to have to wait till next
Sat and do an eyeball inspection of things.

- N

> The only significant changes in system configuration of our E6500 were the
> following lines, added by Sun in /etc/system after replacing the old CPUs
> with Sombra CPUs :
>
> *START OF MIRRORED SET STATEMENTS
> set ecache_calls_a_sec=1
> set ecache_scan_rate=1
> set ecache_is_mirrored=1
> *END OF MIRRORED SET STATEMENTS
>
> But, yes it does not prove that Sombra CPUs are in the box :-)
>
> Also note that the last value is not recognized by Solaris 2.6 kernel, as
> the following message is displayed at boot time :
>
> "sorry, variable 'ecache_is_mirrored' is not defined in the 'kernel'".
>
> Even the CPU version displayed during POST did not change :
>
> "CPU mid 1 Version=00170011.a0000507"
>
> ---
> Sebastien DAUBIGNE
> sebastien.daubigne at sema.fr <mailto:sebastien.daubigne at sema.fr>  - (+33)
> (0)5.57.26.56.36
> Sema Global Services - AFM/DW/Pessac
>
> -----Message d'origine-----
> De: Dale Ghent [SMTP:daleg at elemental.org]
> Date: vendredi 8 mars 2002 05:46
> @: sunhelp at sunhelp.org
> Objet: Re: [SunHELP] How to tell if Sombra CPU's are installed?
>
> On Thu, 7 Mar 2002 echase at postoffice.providence.edu wrote:
>
> | I'm far from an expert on Sun hardware, but what the heck is a
> Sombra CPU
> | versus a "regular" CPU?
>
> Sombra CPUs are the UltraSPARC-II CPUs Sun produced for the x500
> series of
> servers to combat the infamous e-cache parity errors that plague us2
> CPUs
> that run above 400Mhz with certain e-cache SRAM chips.
>
> These CPUs have mirrored e-cache, and are actually supplied on a
> whole
> x500 CPU/Memory board... that's how you get it from Sun... no
> removing/adding them to existing CPU/Mem boards.
>
> There's no way I'm aware of to identify them on a system from the OS
> (short of pulling out the board itself and looking at it.) It does
> require
> OBP version of at least 3.2.28, so that's the only almost-uncertain
> thing
> you could go on.
>
> /dale
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