First, congrats, and welcome to the "basement mainframe club"...it's quiet 
exclusive. :)

Second, a running ES/9000 is crazy-hard to come by; so that's a great score!

Tips: I second what Tom Mathias said - guard that tape better than a nuclear 
football.

One of the first things I did once I got my z800 running was to bit-level image 
all of the CDs, DVDs, & floppies, plus both support elements and the HMC's hard 
drives.  That's then backed up locally twice and off-site twice.  Overkill, but 
VERY important to keep copies of everything.

You *may* be able to run older Linux distros.  The ES/9000 is close enough to 
S/390 (itself is based on ES/3900 from what I remember) that you might be able 
to boot some of the 31-bit compiled distros.

You can also boot in non-XA mode and run OS/360 & MVS 3.8J, which are available 
for free on the CBT Tapes archives.

Good luck!
________________________________________
From: IBM Mainframe Discussion List <[email protected]> on behalf of 
William Donzelli <[email protected]>
Sent: Thursday, June 1, 2017 09:46
To: [email protected]
Subject: Re: ES/9000 microcode

I do not know what is on the machine, but I am going to assume that it
may indeed be wiped.

--
Will

On Thu, Jun 1, 2017 at 9:07 AM, W Mainframe
<[email protected]> wrote:
>  blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px 
> #715FFA solid !important; padding-left:1ex !important; background-color:white 
> !important; } Hey Will,
> I am curious...What is your OS running in your big iron?Dan
>
>
> Sent from Yahoo Mail for iPhone
>
>
> On Wednesday, May 31, 2017, 7:19 PM, William Donzelli <[email protected]> 
> wrote:
>
> So this idiot just purchased an 9221 system from Tennessee (apparently
> it was still in service two years ago, and is in wonderful condition),
> and I made damn sure that the console with the IMPL tape was included.
> I even tracked down the machine's former admin just to be sure. I am
> going to tell him to guard that tape with his life.
>
> The processor is either a model 191 or 421. How similar is the
> microcode between other 9221 types? There are at least a few 9221s of
> various models out in collections that currently have the processing
> power of potted plants, simply because no one bothered to save the
> microcode.
>
> --
> Will
>
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