z/OS HCD User's Guide
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Changing processors

z/OS HCD User's Guide
SC34-2669-00

Changing processors

You can change the following data of the processor:

  • Type
  • Model
  • Configuration Mode
  • Serial Number
  • Description
  • Network name
  • CPC name
  • Local system name
  1. On the Processor List, select the processor and apply the Change action from the context menu (or action code  c ). The Change Processor Definition dialog is displayed.
    *------------------------ Change Processor Definition ------------------------*
    |                                                                             |
    |                                                                             |
    | Specify or revise the following values.                                     |
    |                                                                             |
    | Processor ID . . . . . . . . : PROC4                                        |
    | Support level:                                                              |
    | XMP, 2817 support, SS 2, 32 CIB CF LINKS                                    |
    | Processor type . . . . . . . . 2817      +                                  |
    | Processor model  . . . . . . . M80       +                                  |
    | Configuration mode . . . . . . LPAR      +                                  |
    |                                                                             |
    | Serial number  . . . . . . . . 1234562817  +                                |
    | Description  . . . . . . . . . IBM z196 processor                           |
    |                                                                             |
    | Specify SNA address only if part of a System z cluster:                     |
    |                                                                             |
    | Network name . . . . . . . . . ________  +                                  |
    | CPC name . . . . . . . . . . . ________  +                                  |
    |                                                                             |
    | Local system name  . . . . . . ________                                     |
    |                                                                             |
    *-----------------------------------------------------------------------------*
  2. To change the processor type, or model, overtype the old processor type, or model values, and press the Enter key. To change the support level for the same processor type, move the cursor to the Support level line and press the Enter key. If you have installed a new processor type or model, or a new processor support level, you need to upgrade the processor definition within HCD. No dynamic change is possible. HCD selects the proper configuration rules that are dependent on the processor type, and support level, and generates the correct input for the IOCDS download process.
    Note:
    If the processor change leads to error message CBDA102I, make sure that the new processor type/model supports the same configuration rules as the old processor type, for example, that the same channel path types are supported. Subsequent messages indicate an invalid support level. You first have to update your configuration according to the new processor type/model before you can change the processor.
  3. If more than one support level is available for the processor type, the Available Support Levels panel is displayed where you can select the correct support level for your processor.
    Note:
    On the Available Support Levels panel you can retrieve an explanation of the processor support level for System z processors: Position the cursor on the processor support level description and press the F1 key to get an enumeration of functions provided by this support level.
  4. The Update Channel Path Identifiers panel is displayed. This panel shows the old channel path definitions, which you can change according to your new processor configuration.
    *--------------------- Update Channel Path Identifiers ----------------------*
    |                                                                Row 1 of 24 |
    | Command ===> __________________________________________ Scroll ===> CSR    |
    |                                                                            |
    | Specify any changes to the channel path identifiers in the list below.     |
    |                                                                            |
    | Processor ID . . . . . . : PROC1                                           |
    | Channel Subsystem ID . . : 0                                               |
    |                                                                            |
    | CHPID  Type  Side  Until CHPID   New CHPID +                               |
    | 24     OSD         __            24                                        |
    | 25     OSC         __            25                                        |
    | 26     OSM         __            26                                        |
    | 27     CFP         __            27                                        |
    | 28     CFP         __            28                                        |
    | 29     CNC         __            29                                        |
    | 2A     FC          __            2A                                        |
    | 2B     FC          __            2B                                        |
    | 2C     FCP         __            2C                                        |
    *----------------------------------------------------------------------------*

    The column New CHPID shows the channel path IDs to which the values of column CHPID are mapped by default.

    • You can overtype the values of the column New CHPID. Leave the column Until CHPID blank. Press the Enter key to move the old channel path IDs to the new channel path IDs.
    • If you enter a value in the column Until CHPID, you move all defined CHPIDs in the range defined by the channel paths specified in the CHPID and Until CHPID column to the new range that starts with the value in the New CHPID column. If the values for the CHPID column have a 'gap', the 'gap' is also reflected in the New CHPID column range. When you entered a value in the Until CHPID column, press the Enter key. The Update Channel Path Identifiers panel is redisplayed where the new range is resolved in the New CHPID. The Until CHPID column is shown as blank. To process the updates, press the Enter key again.
  5. The source and target CHPIDs of a CIB coupling connection are each given the local system name of the processor to which they will connect. This is automatically done by HCD at the moment when the IOCP input file is built. Therefore, you should be aware of the consequences of changing the local system name. Consider, for example, a scenario, where during a processor upgrade, you want to adapt an existing local system name to match with a new CPC name. Then the I/O configuration of the target processor of an existing CIB connection also changes and requires a dynamic activate or a POR (in case of a stand-alone CF CPC) to re-establish the CF links. Therefore, HCD issues the CBDG400I warning message whenever a user changes a processor’s local system name.
Note:
If the processor upgrade changed the SYSTEM value of the corresponding IOCP configuration, it may not be possible to do an IOCDS download. It is only possible to perform an IOCDS download for specific processor types because IOCP validates the generated IOCP statements according to the configuration rules of the executing processor. See Supported Hardware Report for the processor type which allows you to download an IOCDS in preparation for a processor upgrade.

If a processor type change leads to change of the SYSTEM value of the corresponding IOCP configuration, see Build an IOCDS and Build System z cluster IOCDSs.

Changing the processor ID

To change the ID of a processor, perform the following steps:

  1. On the Processor List, select the processor and the Repeat (copy) processor configurations action from the context menu (or action code  r ). The Identify Target IODF panel is displayed.
  2. Press the Enter key to accept the default target IODF name, that is the IODF you are currently working with. The Repeat Processor panel is displayed.
    *----------------------------- Repeat Processor ------------------------------*
    |                                                                             |
    |                                                                             |
    | Specify or revise the following values.                                     |
    |                                                                             |
    | Processor ID . . . . . . . . . PROC5___                                     |
    |                                                                             |
    | Processor type . . . . . . . : 2817                                         |
    | Processor model  . . . . . . : M80                                          |
    | Configuration mode . . . . . : LPAR                                         |
    |                                                                             |
    | Serial number  . . . . . . . . 1234562817  +                                |
    | Description  . . . . . . . . . IBM z196   processor                         |
    |                                                                             |
    | Specify SNA address only if part of a System z cluster:                     |
    |                                                                             |
    | Network name . . . . . . . . . ________  +                                  |
    | CPC name . . . . . . . . . . . ________  +                                  |
  3. Specify the new identifier for the processor and press the Enter key. HCD creates a new processor with the same characteristics and connections as the old one.
  4. On the resulting Processor List, delete the old processor by selecting the processor and selecting the Delete action from the context menu (or action code  d ). HCD displays a confirmation panel before showing the updated Processor List.

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