Re: Interesting idea

--- In [email protected], "laddiehanus" <laddiehanus@...> wrote:
>
> 
> > 
> > >  To be honest, I can't recall what VM/370rel6 was targeted towards,
> > 
> > Roughly the 168/3033 and the smaller machines like the 148/158.
> > 
> 4341 also according to the IBM archive page for it
> http://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP4341.html
> 
> > > and for all I know it might have been run on early 3090s as their
> > > owners were working towards migrating towards, the ESA and HP05 family
> > > of operating systems.
> > 
> > It's possible, but I doubt it. I'm pretty sure the 3090 didn't support 2K keys.
> > 
> I thought HPO was required for the 3090 and possibly the 308x series
> However the 3090 processor controller was a 4331 or 61 that ran  VM Rel 6 I remember when one was installed and the CE showed me.
> 
> > Tony H.
> >
> 
> Laddie Hanus
>

From IBM original announcement (February 12,1985):
 
"The central electronic complexes of the IBM 3090 model 200 and model 400 processors announced today consist of the following new components: 

The processing unit, with two central processors in the model 200 and four central processors in the model 400. The processors in each model can share main storage and channels. 

Sixty-four megabytes of central storage, which are standard on the model 200; 128MB of central storage are standard on the model 400. 
Thirty-two channels, which are standard on the model 200; 64 are standard on the model 400. 

The IBM 3092 processor controller, which has two processors to monitor and control the processor complex and to provide maintenance support. An upgrade to the 3092 is required when upgrading to the 3090 model 400.

<snipped>

In addition, the 3092 processor controller requires two IBM 3370 model A2 direct access storage devices with string switches or equivalent. The 3092 requires access to a customer-supplied 3420 model 4, 6 or 8 tape drive or equivalent."

So, if IBM 3092 was made by one (or two?) 4331 running VM/370 rel6, this VM could not be a vanilla one, as it didn't support FBA DASDs (the two 3370 mentioned in the announce); it perhaps included some mods to support FBA DASDs (or it was a VM/SP?).

BFN

Paul