RE: Modify SYSVAL QSYSLIBL -- MIDRANGE-L

Nor I...  That's for sure...!


| -----Original Message-----
| From: midrange-l-admin@midrange.com
| [mailto:midrange-l-admin@midrange.com]On Behalf Of Walden H. Leverich
| Sent: Monday, December 17, 2001 6:11 PM
| To: 'midrange-l@midrange.com'
| Subject: RE: Modify SYSVAL QSYSLIBL
|
|
| First, given that there is a *NONE option on the CRTJOBD command for the
| initial library list I think we can safely assume that a job will
| run w/o a
| user portion.
|
| Second, the SEPT is used for most system-level program resolution
| anyway so
| I'd guess that changing the order of the system library list, or removing
| entries from it for that matter, probably wouldn't kill a system. I'm not
| saying that things wouldn't be all fuc*ed up, I'm sure the web server
| wouldn't start, I don't think TCP would be to happy, etc. But I'm sure the
| base jobs would come up perfectly fine. Mind you, I'm not about to test my
| theory.
|
| -Walden
|
| ------------
| Walden H Leverich III
| President
| Tech Software
| (516)627-3800 x11
| WaldenL@TechSoftInc.com
| http://www.TechSoftInc.com
|
|
|
| -----Original Message-----
| From: jt [mailto:jt@ee.net]
| Sent: Monday, December 17, 2001 18:06
| To: midrange-l@midrange.com
| Subject: RE: Modify SYSVAL QSYSLIBL
|
|
| Just to play "Devil's Advocate":
|
| I'm was talking about a **production 400 system**, in my post
| below.  OTOH,
| there are other ways to experiment with this, in other environments.
|
| Sometimes it helps to approach a problem tangentially, meaning,
| not directly
| head-on.  (Now I'm pre-supposing an actual **business need** to
| do something
| like this, whereas follow-on posts indicated that wasn't so, in the
| particular case of the original question.)
|
| IF (big if) I had a business need to try something like this, I'd
| first see
| if the system could run WITHOUT a SYSLIBL.  If I wasn't working on a
| production computer, I'd consider experimenting with seeing if jobs could
| run with only having entries in the USER portion of the *LIBL.  AFAIK,
| there's nothing unique about the system, product, and *CURLIB portions of
| the library list.  Just that they're always prior to the user portion.  So
| this experiment would put all libraries on an equal footing, in
| the USRLIBL.
| Which just eliminates a variable to deal with.
|
|
| Now IF that worked, I'd consider (again, NOT on a production computer)
| playing with the order of the system libraries.  At that point, I'd expect
| the system to tank, but would have a fallback plan, prepared just for that
| expected possibility.
|
|
| IOW, I'm not opposed to experiementing with something, per se, IF there's
| some possible business justification from the experimentation,
| and IF that's
| in line with the risk and time involved in the experiment.
|
|
| jt
|
| | -----Original Message-----
| | From: midrange-l-admin@midrange.com
| | [mailto:midrange-l-admin@midrange.com]On Behalf Of jt
| | Sent: Monday, December 17, 2001 10:27 AM
| | To: midrange-l@midrange.com
| | Subject: RE: Modify SYSVAL QSYSLIBL
| |
| |
| | Al,
| |
| | Don't know what the precise odds are.  Maybe 50/50...?
| |
| | But I'm EXTREMELY risk-aversive, myself...  Even if the odds were a
| | million to one, I wouldn't take that risk (on a production system).
| | "Not gonna do it" because the recovery on a cratered system would
| | surely not be worth any
| | potential gain, that I can see from trying something like this.
| |
| |
| | I'd like to other thoughts on the subject, though.
| |
| |
| | jt
| |
| |
| | | -----Original Message-----
| | | From: midrange-l-admin@midrange.com
| | | [mailto:midrange-l-admin@midrange.com]On Behalf Of
| | | barsa@barsaconsulting.com
| | | Sent: Monday, December 17, 2001 10:04 AM
| | | To: midrange-l@midrange.com
| | | Subject: RE: Modify SYSVAL QSYSLIBL
| | |
| | |
| | |
| | | If you attempt to "run" a command from QSYSV4R4M0, you get a
| | | diagnostic message CPD0118, and an escape message of CPF0001.  My
| | | thought
| | is that if
| | | you attempted to put this library higher in your library list that
| | | QSYS, you likely might crater your system.  Anyone have thoughts????
| | |
| | | Al
| | |
| | | Al Barsa, Jr.
| | | Barsa Consulting Group, LLC
| | |
| | | 400>390
| | |
| | | 914-251-1234
| | | 914-251-9406 fax
| | |
| | | http://www.barsaconsulting.com
| | | http://www.taatool.com
| | |
| | |
| | |
| | |
| | |
| | |
| | |                     "jt" <jt@ee.net>
| | |                     Sent by:                  To:
| | | <midrange-l@midrange.com>
| | |                     midrange-l-admin@mi       cc:
| | |                     drange.com                Subject:     RE:
| | | Modify SYSVAL QSYSLIBL
| | |
| | |
| | |                     12/16/01 11:59 PM
| | |                     Please respond to
| | |                     midrange-l
| | |
| | |
| | |
| | |
| | |
| | |
| | | Frank,
| | |
| | | You wrote, "IBM should prevent the backwards compatibility libs
| | | getting into the SYSLIBL."
| | |
| | | Ya...  I'd say I agree with that...!  Can users implement this
| | | through security if IBM doesn't.  RVKOBJAUT, but then you need a
| | | program that adopts, to run compiles...  Kludge...?  (Which I
| | | pronounce
| | kloooodge...;-)
| | |
| | | jt
| | |
| | | | -----Original Message-----
| | | | From: midrange-l-admin@midrange.com
| | | | [mailto:midrange-l-admin@midrange.com]On Behalf Of
| | | | Frank.Kolmann@revlon.com
| | | | Sent: Sunday, December 16, 2001 11:32 PM
| | | | To: midrange-l@midrange.com
| | | | Subject: Modify SYSVAL QSYSLIBL
| | | |
| | | |
| | | | >I have not done this but I wonder what happens if
| | | | >I modify QSYSLIBL to put QSYSV4R4M0 at the top,
| | | | >on an OS at V4R5.   Warning do not be tempted to try.
| | | | >Frank Kolmann
| | | |
| | | |
| | | | >>DON'T DO IT.  QSYSV4R4M0 is a library provided for *PRV
| | | | >>compilations
| | | | only.
| | | | >>Al
| | | | >>Al Barsa, Jr.
| | | |
| | | | >I, and I'm sure Jerry too, agree completely.
| | | | >
| | | | >Didn't catch the REASON behind the question...  Maybe there's
| | | | >another
| | | way
| | | | to
| | | | >accomplish this, via LPAR.  But don't know the original
| | | problem that was
| | | | >being addressed.
| | | | >
| | | | >jt
| | | |
| | | | I dont have a reason as such. One of our programmers modified a
| | | | jobs *LIBL (system portion) with CHGSYSLIBL. Could not even do a
| | | | SYS REQ cancel, or SIGNOFF. It is simply something that is very
| | | | easy to do and I suspect will disable the AS400.
| | | | IBM should prevent the backwards compatibility libs
| | | | getting into the SYSLIBL.
| | | |
| | | | Frank Kolmann
| | |
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