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�To be familiar with POR & IPL process�Practical experience of POR & IPL of OS/390

throughout the course.

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� I/O Definitions (IODF)Device definitions are necessary for two reasons

Only defined devices are know to the Channelsubsystem

Only defined devices are know to the OS� IODF are made using HCD� IODF are stored in IODF datasets� IODF datasets are used during IPL to define the

devices to OS, by creating UCB (Unit Control Blocks)

� IODF is converted into IOCDS (I/O control datasets)for use during POR.

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� Loading a copy of the operating system from diskinto the CPU` s central storage SYSRES volume

� Single CPU is used

� IPL steps1. Bootstrap (Cycl 0, Track 0)

2. IRIM (IPL Resource Initialization Module)

3. NIP (Nucleus Initialization Program)

4. MSI (Mater Scheduler Initialization)5. JES

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� Load Address SYSRES volume containing nucleusand parms

� Load Parameter ccuu xxya� ccuu IODF volume

� xxLoadxx subscript

� y Message suppression/prompt

� a Alternate nucleus

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�The Hardware configuration definition is loadedfrom IOCDS into the HSA (Hardware System Area)

�HSA is a non-Software addressable piece of CS,

used for� a microcode work

� LPAR Processing &

� I/O configuration data.

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�Step ² 1� Send a Console message to all the users.

SE ¶Z900 system will be coming down in another

5 min, Pls logoff·� Send an Lotus mail to all the users.

�Step ² 2� Enter a command to restrict the users logging on to

systemF TSO,USERMAX=1

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� Step ² 3� Enter the command to display the active users & active jobs.D TS,ALLD J,L

�

Step ² 4� Cancel all the TSU users & active jobsC U=OPRKSH & C SMFNEWD3

� Step ² 5� Halt the initiators$Z I

� Step ² 6� Bring down all the CICS regionsF CICSXX,CEMT P SHUT I or C CICSXX

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�Step ² 7� Bring down the MQ series

+Q STOP QMGR,MODE=FORCE

� Bring down the DB2 regions@Z STOP DB2,MODE=FORCE

�Step ² 8� Enter the command to cancel the ASCH

� (APPC/MVS scheduler (ASCH) address space)

C ASCH

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� Step ² 10� Enter the command to cancel APPC (Advanced program to

program communication)C APPC

�

Step ² 11� Purge all the initiators & lines$P I$P LNE(*)$P LGN(*)

� Step ² 12� Enter the command to stop SDSFS SDSF

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� Step ² 13

� Unmount all the OMVS mounts

� Enter the command to stop the OMVS initiator.

F BPXOINIT,SHUTDOWN=FORKINIT� Step ² 14

� Enter the command to stop the TCPIP

STOP TCPIP

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�Step ² 15� Enter the command to stop LLA (Library look aside)

STOP LLA

� To stop FFST (First Failure Support Technology)

STOP FFST or FORCE FFST,ARM

� To stop DLF (Data look aside facility) & VLF (VirtualLook aside facility)

STOP DLF or FORCE DLF,ARM

STOP VLF or FORCE VLF,ARM

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�Step ² 16� To stop CICS transaction Server

C DFHCTG

�Step ² 17� To stop TSO

STOP TSO

�Step ² 18

� To stop NETZZ NET,QUICK

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�Step ² 19� Finally to stop JES2 / JES3$P JES2 or FORCE JES2,ARM

NOTE : Force command need to be given if youdon·t receive any response for $P JES2.

Verify whether all the subsystems are madedown.

�Step ² 20� Enter the command to stop the SMFZ EOD

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� Step ² 21� To complete the IPL process go to the HMC (Hardware

Management Console).

� The hardware management console provides a singlepoint of control to manage your central ProcessorComplex

� Select the Primary Support Element

� Double click the GROUPS in VIEW area.

�

Click the defined CPCs in WORK area.

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� Click the IMAGES in WORK area

� Select the LPAR which you want to do an IPL.

� Double click the LOAD option in Right pane area.

� Verify the previous LOAD address & LOADparameter.

� Enter the LOAD address & LOAD parameter &click the yes option.

This is the end of IPL Process.

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�There are Two main steps involved in POR ofa S/390 i.e. POWER ON & POWER OFF, whichis entirely different from ordinary PC.

� Steps involved in bringing down or ratherPOR ing the S/390 & later systems(Z/900)

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� Power off procedure includes three steps

� IPL (From step 1 to 20)

� IPL of all LPARs

� Deactivation of LPARs� Finally Power off the ESS & Z900.

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� Repeat Step 1 to 20 for all LPARs available.� Deactivation of LPARs� Select the primary Support Element in HMC

� Double click the GROUPS in VIEW area.

�

Click the Defined CPCs in WORK area� Click the IMAGES in WORK area.

� Select the LAPARs one by one in WORK area & Click theDEACTIVATE option in TASK area.

� Double click the GROUPS in VIEW area.

� Select Defined CPCs in VIEW area & DEACTIVATE the same.

� Press CNTL + DEL

� SHUTDOWN the HMC

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�Power off the ESS� Press the Local power switch in ESS front panel

& wait for 3 to 5 min.

�

The line cord LEDs will be off when the systempower has completed. If the Line cord LEDs donot go off, call the concerned.

�Power off the Z900� Switch off the RED color switch in the front

panel of Z900.

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� Power On procedure includes 6 steps

� Switch on UPS

� Switch on ESS

� Power on Z900

� Activating the LPARs

� IPL the LPARs

� Specifying System parameter

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�Power on the Z900

� Switch on the RED color switch in the front panel ofZ900 & wait for 5-10min.

� Power on the HMC� Enter the USERID & PASSWORD

� Double click the HMC1on desktop.

� Double click the GROUPS in VIEW area.

� Double click the Defined CPCs.

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� Select the P0010D63 in the WORK area & double clickthe ACTIVATE option in the TASK area.

� Once the P0010D63 is activated go to the TASK area

click the CUSTOMIZE PROFILE ACTIVATION.� Select the Profile, which is to be used & assign the

profile with save.

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� 3 types of Profiles exists.� LOAD� IMAGE� RESET

� The Load profile defines parameters for theprocessing unit, load device address, and associatedparameters.

� The Reset profile defines the IOCDS, the parametersto power-up and power-on reset, and also identifies

the Load or Image profiles that will be used.� The Image profile defines parameters to control the

activation of logical partitions.

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� After selecting the Profile go to the TASK area clickthe POWER ON RESET option.

� Now it will ask for frame select the frame & give yes.

� After the POWER ON RESET completion. Double click

the GROUPS in VIEW area.� Double click the images on WORK area & activate all

the LPARs one by one.

� IPL all the LPARs one by one.

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�Specify System Parameter� Double click the IMAGES in WORK area and select

the any one of the LPAR.� Double click the OPERATING SYSTEM MESSAGES in

TASK area.� This will ask for system parameters� Enter R 00Then JES will come up before which we need to

specify the JES2 parameters( whether Cold/warm

start.)Repeat the above steps for each LPAR.

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