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Balraj
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Joined: 16 Aug 2007
Posts: 34
Location: Bangalore
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Is it possible to Upgrading Z/vse To Z/OS.
if it possible give some details. |
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dick scherrer
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Joined: 23 Nov 2006
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Location: Inside the Matrix
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Hello,
That is not an upgrade.
The entire environment must be rebuilt. |
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Balraj
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Location: Bangalore
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| How to Rebuilt the entire environment. |
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dick scherrer
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Hello,
| Quote: |
| How to Rebuilt the entire environment. |
Not something that can be covered via a forum. If this is something your organization is contemplating, i'd suggest your management work with your IBM rep(s).
If you are just curious, i'd suggest searching in the IBM web sites. It may take you a while, but all of the info is there. |
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Balraj
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Location: Bangalore
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| ok thanks dick |
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dr_te_z
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Joined: 08 Jun 2007
Posts: 71
Location: Zoetermeer, the Netherlands
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I've seen it once. The company hired a specialized software house.
They installed both VSE & MVS as VM-guests. They uploaded the JCL & COBOL sources from VSE to VM. They had tools to convert our COBOL-74 code to COBOL-85 and our VSE/JCL to MVS/JCL.
And then shadow-run-trail-and-error until the 2 environments are the same. Then you can run your production on MVS and start optimizing.
Sounds easy but do not underestimate: it is a hell of a project!!
So concider:
why: what's wrong with VSE?
which new target: there are more options than MVS
again why: I can run my VSE system on a PC and save a lot of money (ask microfocus) |
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dick scherrer
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Hello,
| Quote: |
| Sounds easy but do not underestimate: it is a hell of a project!! |
Depending on just what is running in your vse environment, this may even be an understatement 
The wider variety of purchased software and custom developed tools, the more effort to migrate/convert.
If you are going to further investigate, i'd suggest creating an inventory of everything that has been executed in the last n years (you and your management need to decide what n should be). This includes all of the control statements used for all utilities. You will probably have processes that are vse specific.
Once you have the inventory, define how that exact functionality is accomplished in z/OS. If it cannot be exactly done in z/OS, an alternative approach needs to be defined. This will take considerable time and should involve several people from different areas of expertise. |
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dr_te_z
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Joined: 08 Jun 2007
Posts: 71
Location: Zoetermeer, the Netherlands
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| dick scherrer wrote: |
this may even be an understatement
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So it is.
Back then I was working in an Adabas/Natural environment. Respect for Software A.G.!
I closed my VSE/CICS/Natural session friday afternoon and loggon on again on mondaymorning using MVS/CICS/Natural and continued coding. I saw no difference! Really amazing. Using TSO instead of iccf was a travel from hell  to heaven 
At that time I did not realize how unique this experiance was. I know very little people who've worked on both VSE and MVS machines.
And I believe no-one who claims that JCL if difficult: when you've seen VSE... |
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dick scherrer
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You don't like dee-label (dlbl) and extent statements more than the DD?
Yup, done correctly, that is what most people should see - no little/difference when they log on. The same was true with a few Datacom/IDEAL sites i supported over the conversion.
Some place still tell horror stories (mostly because of incomplete planning and testing).
d |
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dr_te_z
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Joined: 08 Jun 2007
Posts: 71
Location: Zoetermeer, the Netherlands
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| dick scherrer wrote: |
| You don't like dee-label (dlbl) and extent statements more than the DD? |
Long time no see? Forgot about the ASSGN? I remember
ASSGN
DLBL
EXTENT
for 1 dataset. I remember disp=OLD/MOD not meaning the same (like german v.s. dutch: we both know the words "meer" and "zee" but the maining is exactly the opposite).
But it is nice to hear that VSE to MVS goes smooth when you use non-IBM software |
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