Learn how to quickly display spool volume usage in JES2 using the $D SPL,ALL command. Understand the correct syntax and get a detailed explanation of this mainframe system command.
Table of Contents
Question
How to display the spool volume usage?
A. $D SPL,ALL
B. $D A,ALL
C. $D Q,ALL
D. $D I
Answer
A. $D SPL,ALL
Explanation
In JES2, the $D SPL,ALL command is used to display detailed information about all spool volumes and their current usage. Here’s what each part of the command means:
$D – The $ character indicates a JES2 command, and D stands for “Display”
SPL – This specifies that the command relates to spool volumes
ALL – This parameter requests information about all spool volumes
When you enter $D SPL,ALL in a JES2 environment, the system will provide a comprehensive report showing:
- Each spool volume’s name and status (active, inactive, draining, etc.)
- The total amount of space on each volume
- The percentage and amount of space currently in use
- The number of track groups allocated and available
- Additional flags and attributes for each volume
This command gives you a quick overview of your JES2 spool usage across all volumes, helping you monitor capacity and identify potential issues. The other options listed would display different information:
B. $D A,ALL – Displays information about all active jobs
C. $D Q,ALL – Displays all job queues and their status
D. $D I – Displays details about the initiators
So in summary, to specifically display spool volume usage, $D SPL,ALL is the correct and most direct JES2 command to use.
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