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  3. August 2018

Re: What's an iASP?

Hi Nathan

I understand where you are coming from, but I still disagree with your
premise.

At one client I worked with we created a command that was analogous to the
SETASPGRP command that among other things set a "root path" property value
so that applications could write to the IFS in the relevent IASP.
Conceptually we had a command that provided some context to what
environment the application was operating in and which IASP path should be
used.

I might be missing something but even though you have to roll your own tool
and maybe observe some minor conventions, it's not really any more
difficult than the SETASPGRP command.

On Wed, Aug 15, 2018 at 11:11 AM, Nathan Andelin <nandelin@xxxxxxxxx> wrote:

Evan and Jim,

Thanks for your input regarding the IFS. However, my understanding is that
there is a relevant distinction in regard to IASP support for Libraries in
that any number of libraries may be created and stored in an IASP and
referenced from library lists, whereas there is only one IFS directory in
the root file system that becomes available when an IASP is varied on.

The SETASPGRP command provides a slick way of switching Jobs from one IASP
to another without changing references to libraries. But in the case of the
one IFS directory that pertains to its IASP, the directory name is the same
as the IASP name. It's often harder for applications to change references
to IFS directories.



On Tue, Aug 14, 2018 at 4:18 PM, Jim Oberholtzer <
midrangel@xxxxxxxxxxxxxxxxx> wrote:

iASP has IFS just the same as SYSBAS objects do. The path is:
/iaspname/mydir1 /iaspname/mydir1/mydir2

If you absolutely need to access IFS object from the root rather than the
iASP directory, then you put a symbolic link in. IE:

ln -s /iasp/mydir1/ /mydir1/

By doing it this way PowerHA will ensure the entire IFS in the iASP is
replicated right along with the QSYS.LIB objects.

By the way the path to the QSYS.LIB objects in the iASP is:
/iaspname/qsys.lib/mylib.lib.

So if you think about it there is no limitation on the IFS that should
stop
you from using it.



Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects

On Tue, Aug 14, 2018 at 4:43 PM, Nathan Andelin <nandelin@xxxxxxxxx>
wrote:

Last year I listed some of the benefits of IASPs in the following link:

http://rd.radile.com/rdweb/info2/iasp01.html

At the same time I committed to a goal of ensuring that our web portal
and
applications would support them, which has been something of a journey.

In regard to "software", a good chunk of it stored in IFS stream files
these days, whereas IASPs are only designed for Libraries. If you have
"software" in Libraries, technically that might be stored in SYSBAS
while
storing your "database objects" in IASPs that are linked to PowerHA for
remote mirroring. However we store our ILE programs, service programs,
and
other native objects in IASPs too.

A few of our software components such as subsystem descriptions and Job
descriptions must be stored in SYSBAS in order to work.









On Tue, Aug 14, 2018 at 1:39 PM, Jim Oberholtzer <
midrangel@xxxxxxxxxxxxxxxxx> wrote:

That question was just asked of me by an OEM software vendor that is
well
known and been in the AS/400/iSeries/System i/IBM i space for quite
some
time. I was asking if the software they sell would run in an iASP so
it
could be replicated by PowerHA.

Then I went on to discover that rather than use the job description
values,
in all of the software the values were hard coded into the various
SBMJOB
commands in the software.

How do these guys stay in business?

If you are an OEM software vendor, at least try and keep up with the
terminology so you don't sound as ignorant as this one is. Better
yet
support the new technology available. Clearly I will not identify
the
company but geesh.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects
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