Define Group or Member (DSNTIPK)

This topic shows detailed information about System Parameters - Define Group or Member (DSNTIPK).

This panel shows the members in a data sharing group.

Db2 subsystems that share data must belong to a Db2 data sharing group, which runs on a Parallel Sysplex®. A data sharing group is a collection of one or more Db2 subsystems that access shared Db2 data. A Parallel Sysplex is a collection of MVS systems that communicate and cooperate with each other.

DEFINE GROUP OR MEMBER (DSNTIPK)                               
--------------------------------                               
GROUP NAME (GRPNAME)....................................DSNDBPG
MEMBER NAME (MEMBNAME).....................................DBP0
MAX NUMBER OF MEMBERS.......................................248
RANDOM ATTACH (RANDOMATT)...................................YES
DEL CF STRUCTS (DEL_CFSTRUCTS_ON_RESTART)....................NO

GROUP NAME (GRPNAME)

The name of the Db2 data sharing group.

The group name encompasses the entire data sharing group and is the basis for the coupling facility structure names.

N/A means this Db2 is not part of a data sharing group.

Install parameter GROUP NAME on panel DSNTIPK, or ZPARM GRPNAME in DSN6GRP.

Field Name: QWPAGRPN

MEMBER NAME (MEMBNAME)

The member name of this Db2.

N/A means this Db2 is not part of a data sharing group.

Install parameter MEMBER NAME on panel DSNTIPK, or ZPARM MEMBNAME in DSN6GRP.

Field Name: QWPAMBRN

MAX NUMBER OF MEMBERS

The maximum number of members possible in a data sharing group. This is a constant (248) and is not shown on any installation panel.

Field Name: QWPAMAXM

RANDOM ATTACH (RANDOMATT)

Specifies a random group attach flag:

N

Not eligible for random group attach.

NOT N

Eligible for random group attach.

This field corresponds to field RANDOM ATTACH on installation panel DSNTIPK. The ZPARM name is RANDOMATT in DSN6GRP.

Field Name: QWPARAND

DEL CF STRUCTS (DEL_CFSTRUCTS_ON_RESTART)

Shows whether to:

• Delete change-data (CD) structures during restart
• Attempt to delete coupling-facility (CF) structures, including shared communications area (SCA) structures, internal resource lock manager (IRLM lock) structures, and allocated group buffer pools.

This field corresponds to field DEL CF STRUCTS on installation panel DSNTIPK.

ZPARM name DEL_CFSTRUCTS_ON_RESTART in DSN6SYSP.

Field Name: QWP1DCFS