Converting to DFSMSrmm from ASG-ZARA or AutoMedia

102 Converting to DFSMSrmm from ASG-ZARA or AutoMedia

Example 3-18 Modify DFSMSrmm using new PARMLIB options

F DFRMM,M=xx

 To turn Problem Determination Aid (PDA) tracing on or off, specify one of the

commands shown in Example 3-19.

Example 3-19 Turn PDA on of off

F DFRMM,PDA=ON

F DFRMM,PDA=OFF

 To manually quiesce DFSMSrmm, specify the command shown in

Example 3-20.

Example 3-20 Quiesce all DFSMSrmm activities

F DFRMM,QUIESCE

 To refresh DFSMSrmm installation exits and enable any exits that are

currently disabled, specify the command shown in Example 3-21.

Example 3-21 Activate or refresh DFSMSrmm installation exits

F DFRMM,REFRESH EXITS

For more information about these commands, see DFSMSrmm Implementation

and Customization Guide, SC26-7405.

3.1.13 Stopping DFSMSrmm

The DFSMSrmm subsystem must always be activated in your system. In some

recovery situations, you might need to remove DFSMSrmm from your system. In

that case, you must follow the following procedure:

 All jobs that are processing and using tapes should be completed. Before

stopping DFSMSrmm, you can stop batch initiators to avoid failing a job that

opens tape data set.

Before stopping DFSMSrmm, you can obtain a list of the number of requests

waiting to be processed and the number of active requests. You use the

command shown in Example 3-22.

Example 3-22 Show all outstanding DFSMSrmm requests

F DFRMM,QUERY ACTIVE

As a result of this command, you will see the messages shown in Figure 3-30.

Chapter 3. Preparing the environment 103

Figure 3-30 Results of F DFRMM,QUERY ACTIVE command

where:

F Identifies the requested DFSMSrmm function. The values

are internal to DFSMSrmm

Requestor_type Identifies the requestor. It can be JOB, STC, or TSU.

Time Lists the time that the request was started

TKN Identifies the request

Total_count Is the number of tasks available to process DFSMSrmm

requests

Active_count Is the number of tasks currently processing

Queued_count Is the number of requests waiting to be processed by

DFSMSrmm

Nowait_count Is the number of requests waiting to be processed by

DFSMSrmm for which the request does not wait for the

results. Includes the count of catalog requests.

Catalog_count Is the number of requests waiting to be processed by

DFSMSrmm to reflect catalog update activity in the

DFSMSrmm control data set

In Figure 3-32 you can see an example output from this command. In this

sample, the only request to DFSMSrmm is the housekeeping processing

executed by the YCJRES1B job.

Figure 3-31 DFSMSrmm MODIFY command output

 Optionally, you may need to remove the DFSMSrmm subsystem. Usually, you

do not need to remove it. If you want to allow tape use without DFSMSrmm

recording, then you can use the command shown in Figure 3-23.

Example 3-23 Disable the DFSMSrmm SSI

S DFRMM,OPT=RESET

EDG1113I F=function requestor_type=requestor_name time TKN=token_value

EDG1114I COMMAND COMPLETE, TOTAL TASKS total_count, ACTIVE active_count

EDG1118I queued_count QUEUED REQUESTS, INCLUDING nowait_count NOWAIT

catalog_count CATALOG

EDG1101I DFSMSrmm MODIFY COMMAND ACCEPTED

EDG1119I CURRENT DFSMSrmm STATUS IS ACTIVE

EDG1113I F=130 JOB=YCJRES1B 22:19:54 TKN=04000033

EDG1114I COMMAND COMPLETE, TOTAL TASKS 10, ACTIVE 1

EDG1118I 0 QUEUED REQUESTS, INCLUDING 0 NOWAIT 0 CATALOG