por & ipl ho

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    To be familiar with POR & IPL processPractical 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 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 Enter a command to restrict the users logging on to

    systemF TSO,USERMAX=1

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

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

    Step 5 Halt the initiators$Z I

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

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    Step 7 Bring down the MQ series

    +Q STOP QMGR,MODE=FORCE

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

    Step 8 Enter the command to cancel the ASCH

    (APPC/MVS scheduler (ASCH) address space)

    C ASCH

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

    program communication)C APPC

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

    Step 12 Enter the command to stop SDSFS SDSF

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    Step 13

    Unmount all the OMVS mounts

    Enter the command to stop the OMVS initiator.

    F BPXOINIT,SHUTDOWN=FORKINIT Step 14

    Enter the command to stop the TCPIP

    STOP TCPIP

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    Step 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 16 To stop CICS transaction Server

    C DFHCTG

    Step 17 To stop TSO

    STOP TSO

    Step 18

    To stop NETZZ NET,QUICK

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

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

    Verify whether all the subsystems are madedown.

    Step 20 Enter the command to stop the SMFZ EOD

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    Step 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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