Displaying IPL information (IPLINFO)

Use the DISPLAY IPLINFO command to display the following information. The output is message IEE254I.
  • The date and time of the IPL
  • The release level of the system
  • The license value for the system
  • The contents of parmlib members IEASYSxx and IEASYMxx
  • LOADxx information used for the IPL
  • The architecture level of the IPL
  • The IODF (input/output definition file) device
  • The IPL device and volume serial number from which the system was IPLed
  • The status of MTL (manual tape library) tape devices
  • Start of changeIf z/OS is running in a virtual machine, information about the virtual machineEnd of change

Use the DISPLAY IPLINFO,sysparm command to display the value specified or defaulted for any system parameter that is allowed within IEASYSxx. The output is message IEE255I.

Use the DISPLAY IPLINFO,sysparm,STATE command to display the current state of sysparm.

  • Use the DISPLAY IPLINFO,ZAAPZIIP,STATE command to display the state (active or inactive) associated with the ZAAPZIIP system parameter. You can alternately use alias ZZ instead of ZAAPZIIP. The output is message IEE256I.
  • Start of changeUse the DISPLAY IPLINFO,BOOST,STATE command to display information about the boosts. The output is message IEE258I. (If you are using z/OS V2R3, the output is message IEE257I which contains a subset of the information displayed by message IEE258I.) It includes additional information about:Start of change
    • Which boost(s) are active, time used and remaining, and, for recovery process boost, the identity of the requestor.
    • Whether recovery process boosts are currently enabled or disabled.
    • The time at which the most recent state change for this state occurred.
    • The total allowed recovery process boost time per 24 hours (for zIIP boost).
    • The amount of recovery process boost time that has been used within that 24 hour period (for zIIP boost).
    • The total remaining recovery process boost time for the 24 hour period (for zIIP boost).
    • The time until the recovery process boost amount will be refreshed to the total.
    End of change It also displays information about the recovery process boost total actual, potential, and potential-while-enabled usage (as if there had been no limit).End of change
  • Start of changeUse the DISPLAY IPLINFO,CRYPCTRS,STATE command to display the state of counters according to the combination of the CRYPCTRS system parameter and the START IEACTRS,CRYPTO command. The output is message IEE261I.End of change

Use the DISPLAY IPLINFO,LOADXX,MACHMIG command to display the MACHMIG statement(s) from the LOADxx parmlib member. The output is message IEE580I.

Syntax

The command syntax is:

 
D IPLINFO [[,sysparm[,STATE]] | [,LOADXX,MACHMIG]] [,L={a|name|name-a}]
 

Parameters

The parameters are:

sysparm
Any system parameter that is allowed within IEASYSxx.
STATE
Displays the current state of sysparm.
LOADXX,MACHMIG
Displays the MACHMIG statement(s) from the LOADxx parmlib member.
L=a, name, or name-a
Specifies the display area (a), console name (name), or both (name-a) where the display is to appear.

If you omit this operand, the display is presented in the first available display area or the message area of the console through which you enter the command.

Examples

Example 1:

Assume a system has the following characteristics:
  • IPL occurred on December 1, 2006 at 1:15 a.m.
  • The release level is z/OS® 1.8.0.
  • The license type is z/OS.
  • Parmlib member LOAD08 in SYS0.IPLPARM, which resides on device ACB2, was used to IPL.
  • The system treats MTL tape devices as MTL resident drives.
  • The system used system symbols definitions in IEASYMX6, IEASYMU6, IEASYM0L, and IEASYMR8.
  • The operator entered IEASYSST and IEASYSLN in reply to the system parameters prompt.
  • The IODF device resides on ACB2.
  • The IPL device is 3C2A and its volume serial is D83EL8.
Issue the following command:
D IPLINFO
The system returns the following display, slightly modified to improve readability:
IEE254I  11.14.07 IPLINFO DISPLAY 350            
 SYSTEM IPLED AT 01.15.39 ON 12/01/2006          
 RELEASE z/OS 01.08.00    LICENSE = z/OS         
 USED LOAD08 IN SYS0.IPLPARM ON ACB2             
 ARCHLVL = 2   MTLSHARE = N                      
 IEASYM LIST = (X6,U6,0L,R8)                     
 IEASYS LIST = (ST,LN) (OP)                      
 IODF DEVICE ACB2                                
 IPL DEVICE 3C2A VOLUME D83EL8

Example 2:

Assume that you specified (or defaulted to) ZAAPZIIP=YES. Issue the following command:
D IPLINFO,ZAAPZIIP
The system returns the following display:
IEE255I SYSTEM PARAMETER 'ZAAPZIIP': YES

Example 3:

Assume that you specified (or defaulted to) ZAAPZIIP=YES but ZAAPs are assigned to this LPAR. Issue the following command:
D IPLINFO,ZAAPZIIP,STATE
The system returns the following display:
IEE256I ZAAPZIIP STATE: INACTIVE - ZAAP(S) DEFINED TO THIS LPAR

Example 4:

Assume that you specified OSPROTECT=1. Issue the following command:
D IPLINFO,OSPROTECT
The system returns the following display:
IEE255I SYSTEM PARAMETER 'OSPROTECT': 1