Explanation
text is one of the following:
MULTIPLE
GRS COMPLEXES EXIST
SYSTEM sysname ALREADY
A GRS SYSTEM
MORE THAN 31 SYSTEMS KNOWN BY THIS SYSTEM
SYSTEM sysname EXISTS
IN A GRS COMPLEX
The GRS=START system parameter is incorrect
for one of the following reasons:
- MULTIPLE GRS COMPLEXES EXIST
- This system has channel-to-channel (CTC) devices to one or more
systems in two or more global resource serialization complexes. For
example, this system has links to system SYS01 and system SYS03, but
system SYS01 belongs to one global resource serialization complex
and system SYS03 belongs to another.
- SYSTEM sysname ALREADY A GRS SYSTEM
- One of the following is true:
- This system has CTC links to a system that:
- Has the same system name as this system
- Specified the GRS=START or GRS=JOIN system parameter
- Has not finished processing the GRS= system parameter
- This system has the same name as a system that is already part
of the global resource serialization complex. The system name is still
known by systems in the global resource serialization complex. This
can occur when you reIPL this system if the following occurred during
a previous IPL:
- This system was an active global resource serialization system.
- This system failed, disrupting the global resource serialization
ring.
- This system was unable to become an active global resource serialization
system because another global resource serialization system entered
a VARY GRS(ALL), RESTART command.
- MORE THAN 31 SYSTEMS KNOWN BY THIS SYSTEM
- This system knows of more than 31 systems. Each of these systems
is in one of the following categories:
- The system is in the global resource serialization complex.
- The system specified the GRS=START or GRS=JOIN system parameter,
but the system has not yet finished processing that parameter.
- SYSTEM sysname EXISTS IN A GRS COMPLEX
- A global resource serialization complex already exists, and sysname is
part of that complex.
System action
This system issues message ISG009D and waits for
the operator to reply.
Operator response
Consult this system programmer, and see the
operator response for message ISG009D, or do one of the following:
- MULTIPLE GRS COMPLEXES EXIST
- If you want this system to join one of the existing global resource
serialization complexes, physically disable the system's CTC links
to all other systems except the following:
- Systems that are in the global resource serialization complex
that this system is to join
- Systems that are not in, and will not be in, any global resource
serialization complex
Reply JOIN to message ISG009D.
- SYSTEM sysname ALREADY A GRS SYSTEM
- If this message appears because this system has the same system
name as another system, reIPL this system with a different system
name. Before using a different system name, be sure there is a GRSDEF
statement for that system name in the appropriate GRSCNFxx parmlib
member.
If this message appears because this system was part of
the global resource serialization complex during a previous IPL, have
the operator of an active global resource serialization system enter
the VARY GRS(sysname),PURGE command. Then reply JOIN to
message ISG009D.
- MORE THAN 31 SYSTEMS KNOWN BY THIS SYSTEM
- Modify this system's CTC links so that this system has connections
to a maximum of 31 other systems. If one or more of those systems
belong to an existing global resource serialization complex, and you
want this system to join that complex reply JOIN to message
ISG009D. If none of those systems are part of a global resource serialization
complex, and you want this system to start one, reply START to
message ISG009D.
- SYSTEM sysname EXISTS IN A GRS COMPLEX
- Do one of the following:
- If you want this system to join the global resource serialization
complex that sysname is part of, reply JOIN to
message ISG009D.
- If you want this system to start a separate global resource serialization
complex, reconfigure this system so that it does not have CTC links
to any of the systems in the existing global resource serialization
complex and is not sharing resources with any of those systems. Then
reply START to message ISG009D.
System programmer response
If SYSTEM sysname EXISTS
IN A GRS COMPLEX often appears when you IPL this system, change
this system's GRS= system parameter to JOIN.
Source
Global resource serialization
Module
Routing code
Descriptor code