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. 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.
   Note: In case of different configuration rules HCD might provide defaults or clear conflicting values. Appropriate messages will be displayed.
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 z Systems 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.