The WHAT command displays a system status report.
Format
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WHAT [L] [S] [W] [Z] |
Parameter(s)
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L |
Suppresses the lock status report. |
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S |
Suppresses the Spooler report. |
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W |
Suppresses information about current processes. |
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Z |
Displays information for all processes, whether active or not. |
Description
The report gives information about system configuration, current status of locks and tables, the location and status of processes currently logged on, and information about the Spooler.
The WHAT command displays a report that looks like this:
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13:19:20 DD MMM YYYY |
MAXUSERS [254] |
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CURRENT # USERS [21] |
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CORE |
LINES |
PROCESSES |
PCB0 |
WSSTART |
WSSIZE |
SYSBASE/MODULO |
MAXFID |
OVRFLW |
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2304K |
16 |
17 |
1024 |
1088 |
40 |
1328 27 |
30195 |
27779 |
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GROUP AND EXECUTION LOCKS (LOCK-PROCESS) |
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*0000 000400 FF20 121.000 121.29D 166.CAO 0001 000420 BF20 170.09A 170.206 |
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THE SPOOLER IS INACTIVE. |
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PRINTER # 0 IS PARALLEL, ON LINE AND INACTIVE. THE PRINTER IS DEFINED AS A SERIAL PRINTER # 0. ASSIGNED OUTPUT QUEUES: 0. THE NUMBER OF INTER-JOB PAGES TO EJECT IS 0. |
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PRINTER # 1 IS SERIAL AND INACTIVE. THE PRINTER IS RUNNING ON PROCESS 8. ASSIGNED OUTPUT QUEUES: 3. THE NUMBER OF INTER-JOB PAGES TO EJECT IS 1. |
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The first line of the report gives the maximum number of users allowed to log on at any one time, as set by the MAXUSERS command, followed by the number of users currently logged on. If update logging is active, an asterisk (*) displays after CURRENT # USERS.
The second line of the report displays this information:
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CORE |
Amount of memory on the system. |
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LINES |
Number of processes defined for the system in the CCB. |
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PROCESSES |
Number of processes defined for the system in the CCB. |
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PCB0 |
Process Control Block (PCB) frame ID for process 0 (the system console). You can determine the PCB frame ID for each of the following processes by multiplying the process number by 32 and adding the result to PCB 0. |
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WSSTART |
Frame ID of the first frame of the workspace extension area. |
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WSSIZE |
Size of each block of workspace extension. For each process there can be up to three blocks of extended workspace, of 40 frames each. |
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SYSBASE/MODULO |
Base frame ID and modulo of the SYSTEM Dictionary. |
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MAXFID |
Maximum frame ID number. This indicates the last frame ID available for data storage on the system. |
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OVRFLW |
Available disk space. This includes both linked frames and contiguous frames. |
The third section of the report shows any group locks. In the example, there are no locks listed. Group locks are listed in this format:
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23460 (5BA4)-002 |
where the first number (23460) is the decimal frame ID of the group; the second number, in parentheses (5BA4), is the hexadecimal frame ID; - is the lock type (- = Read for Modification, R = Read, U = Update); the third number is the process ID.
The fourth section of the report shows the location of each process that is currently running. Each line shows this information:
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Process ID |
An asterisk (*) indicates your own process. |
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Frame ID |
Process Control Block frame ID of the process (hexadecimal). |
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Process Status |
This number is for maintenance use only. |
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T |
If a backup medium is attached to a process, a T displays in the fourth column. |
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Location |
First address gives the frame ID (decimal) and a dot, followed by the location (hexadecimal). Subsequent addresses are the subroutine return stack addresses. |
The last section of the report gives the current status of the Spooler.