f243 & f253-Ipl Demo

ITD - Global Delivery, India

IBM Confidential © 2007 IBM Corporation

YUgesh PothuruPlatform Support (MVS)ITD – Global Delivery, India

DEMO IPL

Duration: 2 Hours


© 2007 IBM Corporation2 IPL

Session Objective

What is IPL?

Types of IPL

IPL Flow DEMO

IPL commands



What is IPL?

Initial Program Load (IPL) is the act of loading a copy of the operating system from disk into the CPUs central storage and executing it.

Disk which contains the loadable code is generally referred to an IPLable disk, specifically as the SYSRES volume.



Types of IPL Cold Start - Loads PLPA (CLPA)

Any IPL that loads or reloads the Pageable Link Pack Area (PLPA) and does not preserve VIO data sets. The first IPL after system installation is always a cold start because the PLPA must be initially loaded. The PLPA can be reloaded by specifying/responding CLPA in System Parameters

Quick Start - No reload of PLPA (CVIO)

Any IPL that does not reload the PLPA and does not preserve VIO data sets. The PLPA from the previous session can be used without reloading it. A Quick Start can be initiated by specifying/replying CVIO (Clear VIO) in System Parameters

Warm Start – No CLPA and no CVIO

Any IPL that does not reload the PLPA and preserves journaled VIO data sets. The operator does not enter CLPA or CVIO in System Parameters



How do we IPL

Log on to HMC– Provide Load Address– Provide Load Parmater– Load the image

Activate the image in HMC

Check the IPL log and reply for system parameters– Reply to system parameters if required– Monitor the system for WTORs

Start the required started tasks

Perform the post ipl tasks

IPL checkouts



The way an IPL is performed for an

– COLD

– QUICK

– WARM is all the same way.

With the parm specified in the IEASYSxx member the type of IPL to be happened is decided by the system.



Types of Messages

IKJ : TSO

IKT : TSO/VTAM

COF : DLF,VLF

IXC : Cross System Coupling Facility

HASP : Related to Jes2

ISP : Related to ISPF

IEE : Master Scheduler, Operator's console

ICH,IRR : RACF

ICK : Device support facilities

IEA : System control (storage/task management, etc.)

IEU : Assembler

IFA : System Management Facilities

IFC : EREP (Environmental Record Editing and Printing)

IGC : SVC (Supervisor Call) functions



Commands to be known while working with a console

K S,DEL

– This command bringsup the whole command where we can change the – No of lines per scroll.– Time for each scroll.

K A,10

– This command enables such that 10 lines of your display stays on the screen

K D,F

– This command is to show the next 10 lines of the display command.

K E,D

– This command is to remove the display area set by the command and make the Messages flow the full screen

K E,1

– Deletes the first high lightened message on the Console.



IPL Commands

When we start to do an IPL the system first searches for the LOADxx and then for the MSTRJCL and tries to pick up the PARMLIB IEASYSxx.

If we want to specify the parameters at the operator prompt then in the LOADPARM we have to SELECT ‘T’ for the “prompting and message suppression indicator “

IEA101A SPECIFY SYSTEM PARAMETERS FOR z/OS 01.07.00 HBB7720

IEE600I REPLY TO 00 IS;SYSP=(B0,PS)



IEA549I SYSTEM CONSOLE FUNCTIONS AVAILABLE

– This message tells us that the console devices are identified by the system and the operator can start issuing the MVS commands

In General the COMMANDS to bring up the remaining system functions or subsystems and so on other then the MASTER SCHEDULAR are specified in the parmlib member COMMNDxx or IEACMDxx parmlibs.

ACF89890 ACF2 SUBSYSTEM INITIALIZATION COMPLETE

– This message tells us that the security product has been started. (May or may not be started by the operator)



START DLF,SUB=MSTR

– COF525I DLF INITIALIZATION IS COMPLETE.

START VLF,SUB=MSTR,NN=00

– COF025I VLF INITIALIZATION IS COMPLETE.

START LLA,SUB=MSTR,LLA=00

– CSV210I LIBRARY LOOKASIDE INITIALIZED

START JES2

– We will get a WTOR saying• *xxxx $HASP426 SPECIFY OPTIONS - JES2 z/OS 1.7

– Reply to this message as • R xxxx,yyyy,NOREQ

– XXXX - Message no.– YYYY - COLD/WARM/QUICK

– $HASP493 JES2 ALL-MEMBER WARM START IS IN PROGRESS



S NET

– To start VTAM.

– $HASP373 NET STARTED

S TSO

– $HASP373 TSO STARTED IKT007I TCAS ACCEPTING LOGONS

S TCPIP

– $HASP373 TCPIP STARTED

S SDSF

– $HASP373 SDSF STARTED ISF728I SDSF parameters have been activated.

S RRS

– IEF403I RRS - STARTED ASA2011I RRS INITIALIZATION COMPLETE. COMPONENT ID=SCRRS



-DS1I START DB2

– STARTS DB2 if u don’t find -DS1I when u issue D A,L make note of the msg and inform it to db2 sys. prog.

D A,l

– Lists all the active units of work on the system ata given point of time.

D IPLINFO

– To check the IPLparms that have been picked up during the IPL, Loadxx, IEASYSxx.

D XCF

– To check if the system has joined the sysplex and other systems that are in the SYSPLEX.

D R,L

– To check whether there are any WTORS to be replied.



SHUTTTING DOWN THE SYSTEM

F TSO,USERMAX=0

– Makes sure that no more users will be allowed to logon to the system.

SE ’IPL IS TO BE DONE NOW PLS LOGOFF’

– Send this message twice or thrice so that users can logoff

D A,L

– To check what are all the active units of work on the system

P TSO

– This command stops TSO and the users if any logged on will be disconnected form the sessions.

– IKT006I TCAS ENDED



P TCPIP

– STOPS TCPIP started task

– EZZ4201I TCP/IP TERMINATION COMPLETE FOR TCPIP

P SDSF

– Stops the SDSF subsystem.

STOP LLA

– This command stops LLA and issues the message

– CSV210I LIBRARY LOOKASIDE ENDED

Z NET,QUICK

– this command stops VTAM and dis

– plays the message

– IST097I HALT ACCEPTED

– IST133I VTAM TERMINATION IN PROGRESS

– IST102I VTAM IS NOW INACTIVE



C CICSIND8

– This command cancels CICS SESSION.

F OMVS,SHUTDOWN

– This command shutdown OMVS and issues the following message

– BPXI055I OMVS SHUTDOWN REQUEST ACCEPTED

– IEF196I BPXI055I OMVS SHUTDOWN REQUEST ACCEPTED

– BPXI056E OMVS SHUTDOWN REQUEST HAS COMPLETED SUCCESSFULLY

P RMF

– This command purge RMF

-DS1I STOP DB2

– This command stops DB2



SETRRS CANCEL

– This command stops rrs and issues the message

– ATR101I CANCEL REQUEST WAS RECEIVED FOR RRSRRS ENDED.

$PI

– This command will drain all the initiators.

$PLNE(*)

– This command will drain all the lines

$PJES2

– This command will stops jes2

Z EOD

– Halt end of day



This command will do 1.Store the internal I/O device error counts in the logrec data set.

2.Empty the SMF buffers onto the active SMF data set in SYS1.MANx.

3.Copy the cached data in 3990 devices to DASD.

Switch to another SMF data set in SYS1.MANx, allowing the previously active SMF data set to be dumped according to your installation’s procedures.

4.Close the system log and put it on the print queue

Documents

f243 & f253-Ipl Demo