A 1-byte flag field

The format of the flag field is as follows:

Bit Setting

Meaning

00.. ....

No updates are to be duplicated on the backup data set. This is the default setting if you do not provide ICHRDSNT.

10.. ....

All updates, but no statistics, are to be duplicated on the backup data set. This is the recommended setting if you provide ICHRDSNT.

If SETROPTS INITSTATS is on, a limited subset of statistics is maintained on the backup:

The first time each day that the user logs on when SETROPTS INACTIVE is in effect
The time and date of password or password phrase changes during logon
The time and date a user enters a correct password or password phrase after having entered an incorrect one

SETROPTS INITSTATS allows RACF® to continue processing revoke dates if you need to switch to your backup database. If you have SETROPTS NOINACTIVE in effect, you are not revoking users for inactivity, and therefore the statistics for the first logon of the day will not be recorded in the backup database.

11.. ....

All updates, including statistics, are to be duplicated on the backup data set.

.... xx..

Sysplex communication and data sharing bits. These bits need to be set in the first entry only of the data set name table. RACF ignores these bits in subsequent data set name table entries. These bits can have the following values:

Bit Setting: Meaning
00: RACF is not enabled for sysplex communication.
10: RACF is enabled for sysplex communication, and requests non–data sharing mode at IPL.
01: RACF requests data sharing mode at IPL. Because this requires sysplex communication, RACF is also enabled for sysplex communication. (This bit setting is treated the same as the 11 setting.)
11: RACF is enabled for sysplex communication, and requests data sharing mode at IPL.

When RACF is enabled for sysplex communication, it allocates resident data blocks for the backup database.

All systems in the data sharing group must be in the same mode, either all data sharing or all non–data sharing mode. As a result, the mode specified here might be overridden at IPL time to the mode in use by the other members of the data sharing group.

See Sysplex considerations for more information on the sysplex communication and sysplex data sharing options.

.... ...1

Formerly controlled the resident data-block option for the primary database. The resident data-block option is always used and the setting for this bit is ignored.

This table resides in SYS1.LINKLIB or any other APF-authorized linklist library. It must be linked with RMODE(24).

The RACTABLE member of SYS1.SAMPLIB contains a sample MVS™ job that creates a RACF data set name table; also see the program directory shipped with z/OS, z/OS Program Directory.