Larry,
The &SYSR1 symbol is set dynamically by z/OS at IPL time based on the name
of the VOLSER that you use as your IPL device. You can then use IEASYMxx
to define more SYSRES volumes based on the IPL volume. If you use
indirect cataloging with &SYSR1, &SYSR2, &SYSR3, etc. then you can easily
clone a Production system to a Test system without having to recatalog any
of your system datasets.
For example:
SYSDEF
SYMDEF(&SYSR2='&SYSR1(1:5).2')
SYMDEF(&SYSR3='&SYSR1(1:5).3')
SYSDEF
LPARNAME(SYS1)
SYMDEF(&SYSDSN='PROD')
SYSDEF
LPARNAME(TECH)
SYMDEF(&SYSDSN='TECH')
....
After IPL time if you IPL from a VOLSER with PRODR1 then you will have 3
symbols PRODR1, PRODR2, and PRODR3. If you IPL from a test LPAR using a
different VOLSER, for instance TESTR1, then your symbols would be TESTR1,
TESTR2, and TESTR3. Of course there's lots of variation on this scheme
depending on your VOLSERs and LPAR names.
You can then use those symbols to indirectly catalog datasets. The master
catalog can then be shared across LPARS or easily cloned.
ie:
DEF NVSAM(NAME(SYS1.xxxx
DEVT( 00000000
VOL( &SYSR1
CAT(SYS1.MASTER.CATALOG.Vxxxxxx)
DEF NVSAM(NAME(SYS1.xxxx
DEVT( 00000000
VOL( &SYSR3
CAT(SYS1.MASTER.CATALOG.Vxxxxxx)
Hope this helps,
===========================================
Tony Curtis
Manager, Mainframe Operations & Systems
Information Technology
Atlanta Journal-Constitution
72 Marietta St.
Atlanta, GA 30303
(404)526-5638
===========================================
larry macioce
<[email protected]
OM> To
Sent by: IBM [email protected]
Mainframe cc
Discussion List
<[email protected] Subject
.edu> Re: Where are the system symbols??
03/26/2009 10:06
AM
Please respond to
IBM Mainframe
Discussion List
<[email protected]
.edu>
I have found them all with the exception of sysres. Yes they are in the
load
parm and parmlib, but for the life of me I can not find where the sysres
symbol lives.Are you telling me that because it is id'ed as the ipl pack
the
system recognizes it as such and inserts it into the &syres1 symbol?
thanks
On Thu, Mar 26, 2009 at 7:26 AM, Peter Relson <[email protected]> wrote:
> As stated, and documented, the ones other than &SYSCI1 are defined by the
> system.
>
> The system knows the architecture level (prior to z/OS 1.6 you would have
> determined this). The system defined the symbol.
> You defined the system name. The system defined the symbol.
> You defined the sysplex name. The system defined the symbol.
> The system defined the sysclone value (or you did, depending on your
> parameters). The system defined the symbol.
> The system determined the sysres volume. The system defined the symbol.
>
> As to where you defined these things, it's a combination of various
parmlib
> members such as LOADxx.
>
> Peter Relson
> z/OS Core Technology Design
>
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