Re: System Upgrade

[Jim Oberholtzer <midrangel@xxxxxxxxxx>]

Another thing to keep in mind.  You will not be doing an "upgrade" since 
IBM would not support a jump that big.  Rather you are looking at a 
re-implementation of the systems.  While you need to be somewhat 
diligent about the PSPs etc, the odds of a real problem are slight.  The 
issues will be in QGPL and QUSRSYS.  If the customer left lots of 
objects in those libraries, or if they used out file support extensively 
then there is going to be quite a bit of work to correct those issues.

See if you can do a side by side upgrade.

An experienced, certified system administrator can do this transition 
given sufficient time for planning.  The old carpenter saying comes to 
mind, measure several times, cut once.  In this case, plan, plan, plan 
again, then do the cutover.

Jim Oberholtzer
CEO/Chief Technical Architect
Agile Technology Architects, LLC


On 8/16/2010 10:31 AM, Luis Rodriguez wrote:
> Hi,
>
> As always, I think that the first thing to do should be checking the Memo to
> Users manuals of the releases you are going thru (V4R5-->  V5R4). Also, IIRC,
> there are some observability issues in going from V4R4 to V5Rx. If your
> programs were compiled without observability you can have som problems.
>
> HTH,
> Luis Rodriguez
> IBM Certified Systems Expert — eServer i5 iSeries
>    
> > Dear All,
> >
> > One of our customer is buying a new box with V5R4 and he is in V4R4. My
> > question is can his application be run without any compilations.
> >
> >
> > --
> > Regards,
> >
> > Chamara Withanachchi
> > IBM Certified Power System Expert
> > RPG Programmer
> > (owner of www.rpgiv.info)
> >
> >