TS/MP Management Programming Manual (G06.24+, H06.03+)

Server Class Commands
NonStop TS/MP Management Programming Manual—540082-001
9-4
ADD SC
For descriptions of all error-token values and their associated error lists, see
Section 10, Event Management..
For considerations regarding errors that can occur when a server process is in debug
mode, see the TS/MP Pathsend and Server Programming Manual.
Considerations
•
The tokens and fields included in the command buffer must be valid for the
process type defined for the server class.
•
The name assigned in the ZNAME field in ZPWY-DDL-SEL-SC must be unique in
the Pathway subsystem.
•
If no value is specified for ZPWY-TKN-DEF-SCCWD for OSS server processes,
then the values specified for these tokens must be absolute OSS pathnames:
ZPWY-TKN-DEF-SCPROGRAMOSS
ZPWY-TKN-DEF-SCSTDERR
ZPWY-TKN-DEF-SCSTDIN
ZPWY-TKN-DEF-SCSTDOUT
•
A link to a server class is an access path to a server process in the class. The link
is used to send a request to, and receive a reply from, a server process. A link can
only be used for one send operation at a time.
•
A LINKMON process shares a link among the multiple Pathsend processes
executing in the CPU of the LINKMON process. Only one Pathsend process at a
time can use the link by calling the SERVERCLASS_SEND procedure.
•
The ZLINKDEPTH field in ZPWY-DDL-DEF-SC specifies the maximum number of
concurrent links that any one link manager (such as the LINKMON process or
Pathway/iTS TCP) can have to the same server in a server class. A link manager,
however, can also have links to other servers in the class.
For example, if ZLINKDEPTH is 1, a LINKMON process can only have one link to
each server process. Each request to the PATHMON process for an additional link
will result in a link to a different server process.
•
Each link from a link manager results in a single open of the server. The LINKMON
process makes the open available for use by multiple Pathsend requesters.
If you are using the Pathway/iTS product, note that the TCP makes the open
available for use by multiple SCREEN COBOL programs.
•
To specify node independence for server class attributes, specify \* for node
names or omit node names and set ZNODEINDEPENDENT to ON in the START
PATHWAY command.