Example SYSTEM Statements

The following SYSTEM statement shown adds DC/UCF system 80 to the data dictionary. Parameters not explicitly coded default as indicated in the syntax.
idms
Adding a System
The following SYSTEM statement shown adds DC/UCF system 80 to the data dictionary. Parameters not explicitly coded default as indicated in the syntax.
ADD SYSTEM 80 CUSHION IS 6 DEADLOCK DETECTION INTERVAL IS 300 DUMP GENERATION IDENTIFICATION IS SYS80 INACTIVE INTERVAL IS 300 NOJOURNAL RETRIEVAL LOG DATABASE MAXIMUM ERUS IS 10 MAXIMUM TASKS IS 13 OPERATING SYSTEM IS MVS PRINT KEY IS PF12 PRINTER CHECKPOINT IS 50 PROGRAM POOL IS 100 REENTRANT POOL IS 300 RESOURCE TIMEOUT INTERVAL IS 1800 RUNAWAY INTERVAL IS 60 RUNUNITS FOR MSGDICT = 2 FOR SIGNON = 2 FOR SECURITY = 1 FOR SYSTEM/DEST = 2 SNAP SYSTEM OFF SNAP SYSTEM PHOTO OFF STACKSIZE IS 1200 STATISTICS INTERVAL 3600 STORAGE POOL IS 345 SVC IS 173 SYSCTL IS SYSCTL SYSLOCKS IS 1200 SYSTRACE ON ENTRIES = 250 TICKER INTERVAL IS 5 USERTRACE ON ENTRIES = 500.
Modifying a System
The following SYSTEM statement modifies the definition of DC/UCF system 80. Parameters not explicitly coded remain unchanged.
MODIFY SYSTEM 80 NODUMP.
Displaying a System
The SYSTEM statement shown next, if issued after the MODIFY SYSTEM 80 statement shown above, displays the definition of DC/UCF system 80. The display options default as specified in the SET OPTIONS statement.
DISPLAY CURRENT SYSTEM.
The SET OPTIONS statement is described in SET OPTIONS Statement.
Deleting a System
The following SYSTEM statement deletes the definition of DC/UCF system 80 from the data dictionary.
DELETE SYSTEM 80.
Expanding Storage Pool
The following examples are SYSGEN dynamic expansion syntax usage.
ADD XA STORAGE POOL 128 SIZE IS 6000 CUSHION IS 128 NOPGFIX RELOCATABLE THRESHOLD IS NO CONTAINS TYPES ( USER USER-KEPT ) DYNAMIC EXPANSION IS ON
MOD SYSTEM 218 XA STORAGE POOL DYNAMIC EXPANSION IS ON
Non-Stop Processing
This section describes the enhancements that enable CA IDMS to support continuous operations.
Expanded Statistics Fields
Several fields used to collect CA IDMS run-time statistics have been enlarged to accommodate the larger values that can be expected with faster processors and non-stop operations.
The field size has been increased from single to double words for statistics related to storage management and CPU utilization. These changes affect the following DSECTs:
  • #SCADS -- Subtask control area
  • #SCTDS -- Storage control table
  • #SMTDS -- Storage management table
The following system tasks and operator commands now display larger values:
  • OPER WATCH STORAGE SUBPOOL
  • OPER WATCH STORAGE POOL USAGE <nn>
  • DCMT DISPLAY ACTIVE STORAGE <pool number>
  • DCMT DISPLAY MPMODE
  • DCMT DISPLAY STATISTICS SYSTEM
  • DCMT DISPLAY SUBTASKS
  • DCMT DISPLAY SUBTASK <nn>
Where space is limited on the output screen, large values are displayed in scientific notation.