DFSMSrmm Primer

446 DFSMSrmm Primer

same for the client system and the server system to establish a network

connection.

The default is None.

 SERVERTASKS(number): Use this operand to specify how many

DFSMSrmm tasks should be available on the server to handle socket

connections from client systems. DFSMSrmm uses this number to determine

how many tasks are to be started for processing all client requests on this

server. Specify a value from 1 to 999.

The number of local and server tasks you can use and still successfully start

DFSMSrmm is limited by the size of the private region above and below

16 MB. To start with more tasks, you require a larger REGION size.

The default is 10.

10.3.3 Updating EDGRMMxx for a client

In the environment shown in Figure 10-1 on page 435, we define four

DFSMSrmm client systems: two in SYSPLEX 1 and two in Non-Plex 1. To

implement a DFSMSrmm client system, update your EDGRMMxx PARMLIB

member to define the CATSYSID, CDSID and CLIENT operands. You can use

the same DFSMSrmm client definitions as shown in Figure 10-3 for SYSA and

SYSB. All other EDGRMMxx PARMLIB definitions are not shown in this figure.

Figure 10-3 EDGRMMxx PARMLIB options for client SYSA and SYSB

For the both systems SYSC and SYSD, you can use the CATSYSID, CDSID, and

CLIENT operand as shown in Figure 10-4. All other EDGRMMxx PARMLIB

definitions are not shown in this figure.

Recommendation: Specify or accept the default value of 10 server tasks on

each server system. Depending on the number of CLIENT systems, increase

this value to allow three tasks per CLIENT. Most of the local tasks are rarely

used by DFSMSrmm. You do not need more server tasks than the sum of all

local tasks across your CLIENT systems.

OPTION OPMODE(P) /* operating mode */ -

CATSYSID(SYSA,SYSB) /* Catalog sysid(s) */ -

CDSID(RMMPLEX1) /* CDS ID */ -

CLIENT(SERVERNAME(9.12.6.9) PORT(9000)) /* WTSC Server */ -

LOCALTASKS(10) /* number of subtasks */