While running RESTORE SYSTEM

Specific considerations apply while RESTORE SYSTEM is running.

Data sets that RESTORE SYSTEM uses

The following table lists the data sets that RESTORE SYSTEM uses. The table lists the DD name that is used to identify the data set, a description of the data set, and whether it is required. Include statements in your JCL for each required data set.

Table 1. Data sets that RESTORE SYSTEM uses
Data set Description Required?
SYSIN An input data set that contains the utility control statement Yes
SYSPRINT An output data set for messages Yes
auth-id.job-name.HSM A temporary data set that is automatically allocated by the utility and deleted when the utility completes Yes
VCAT alias values data set An input data set that contains the values of the integrated catalog facility (ICF) alias (VCAT) names to be switched while processing. Specify its DD name with the SYSVALUEDDN option of the utility control statement. The default DD name is SYSVALUE. No
VCAT alias values data set
Defines a set of records which contain integrated catalog facility (ICF) catalog (VCAT) alias names.

Each record must contain a pair of (VCAT) alias names separated by only a comma. Blank characters are not allowed between each name. Each name is a valid z/OS® alias of up to eight characters and composed of uppercase alphabetic, numeric, or national characters. The first (VCAT) alias name is the name used when the system level backup was created. The second (VCAT) alias name is the current name after any renaming. All aliases encountered in the log must be specified, even if the VCAT alias is the same as when the system level backup was created. Sample data follows: 

VCAT1,VCAT2 
VCAT5,Z1234567
DSNC000,DSNC000

To obtain the names, keep a list of previously existing to current name mappings when renaming an integrated catalog facility (ICF) catalog (VCAT) alias.

Start of changeHSM and DFDSS messages in SYSPRINTEnd of change
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If the HSM_MSGDS_HLQ subsystem parameter is set to the same high-level qualifier that is specified in the MESSAGEDATASET parameter of the HSM SETSYS command, the SYSPRINT data set contains diagnostic messages that are generated by HSM and DFDSS. The HSM messages are bracketed by the DSNU421I and DSNU422I messages. The name of the HSM message is displayed in the utility SYSPRINT.

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Concurrency and compatibility for RESTORE SYSTEM

While RESTORE SYSTEM is running, no other utilities can run.

Using DISPLAY UTILITY with RESTORE SYSTEM

You can use the DISPLAY UTILITY command with RESTORE SYSTEM.

To use the DISPLAY UTILITY command for RESTORE SYSTEM on a data sharing group, you must issue the command from the member on which the RESTORE SYSTEM utility is invoked.

Termination and restart of RESTORE SYSTEM

You can terminate and restart the RESTORE SYSTEM utility.

You cannot terminate RESTORE SYSTEM by using the TERM UTILITY command.

You can restart RESTORE SYSTEM at the beginning of a phase or at the current system checkpoint. A current system checkpoint occurs during the LOGAPPLY phase after log records are processed. By default, RESTORE SYSTEM restarts at the current system checkpoint.

When you restart RESTORE SYSTEM for a data sharing group, the member on which the restart is issued must be the same member on which the original RESTORE SYSTEM was issued.