por & ipl ho
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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 [email protected] 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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