Defining switch configuration data

After defining the switch, you can define the switch configuration, that is the "inside" of the switch.

1. On the Switch List, select the switch and the Work with switch configurations action from the context menu (or action code  s ). HCD displays the Switch Configuration List containing all currently defined configurations for that particular switch.

      Goto  Backup  Query  Help
    ----------------------------------------------------------------------------
                             Switch Configuration List                  Row 1 of 1
   
    Select one or more switch configurations, then press Enter. To add, use F11.
   
    Switch ID  . . . . : 99         First switch
   
      Switch       Default
    / Config. ID   Connection + Description
    _ NIGHT        Allow        ________________________________
   
   

2. Use F11=Add to add a new switch configuration. The data-entry fields are shown below, with sample data:

   *----------------- Add or Repeat Switch Configuration ----------------*
   |                                                                     |
   |                                                                     |
   | Specify or revise the following values.                             |
   |                                                                     |
   | Switch ID . . . . . . . : 99                                        |
   |                                                                     |
   | Switch configuration ID . BASIC___                                  |
   |                                                                     |
   | Description . . . . . . . ________________________________          |
   |                                                                     |
   | Default connection  . . . _1  1.  Allow                             |
   |                               2.  Prohibit                          |
   
   

   The Default connection field sets the default connection for all ports, either allowed or prohibited. Individual port connections can be reset on the Port Matrix panel described in the next step.

3. On the Switch Configuration List, select the switch configuration and the Work with port matrix action from the context menu (or action code  s ). HCD displays the Port Matrix panel showing all ports currently installed on the switch.

      Goto  Backup  Query  Help
    ----------------------------------------------------------------------------
                             Port Matrix                 Row 1 of 28 More:       >
   
    Command ===> __________________________________________ Scroll ===> PAGE
   
    Select one or more ports, then press Enter.
   
    Switch ID  . . . . . . . . : 99
    Switch configuration ID  . : BASIC      Default connection : Allow
   
                                       Ded   --Dynamic Connection Ports Ex--
    / Port Name +                   B  Con + 0 1 2 3 4 5 6 7 8 9 A B C D E F
    _ E0   ________________________ N  __    \ * * * * * * * * * * * * * * *
    _ E1   ________________________ N  __    * \ * * * * * * * * * * * * * *
    _ E2   ________________________ N  __    * * \ * * * * * * * * * * * * *
    _ E3   ________________________ N  __    * * * \ * * * * * * * * * * * *
    _ E4   ________________________ N  __    * * * * \ * * * * * * * * * * *
   

   Scroll to the right to view further ports.

Establishing dedicated connections

You can establish a dedicated connection between two ports by specifying the number of a port to which a dedicated connection is defined in the Ded Con column. After pressing the Enter key HCD completes the definition by mirroring the definition. For example, if you specify a dedicated connected in the row of port E0 to port E4, HCD establishes the same dedicated connection in the row of E4 to port E0.

A dedicated connection acts like a physically cabled connection between two ports. Establishing a dedicated connection is not the same as prohibiting all but one connection to a port. Dedicated connections are required to support communication through an ESCD with an ESCON Converter (ESCC), and to support chained ESCDs.

If you maintain switch configurations with HCD, you must define the required dedicated connections before you connect a CVC or CBY channel path to a switch port.

If you have alternate required dedicated actions in a configuration (for example, for backup purposes), you must define alternate switch configurations.

Blocking ports

You can block or unblock a port by just specifying a Y for Yes or N for No in the B column.

Dynamic connection ports

In our example the default switch connection is set to allowed. To prohibit a switch connection from, for example, EA to FA, scroll down until you see port EA and scroll right until you see port FA. Then type over the * symbol with a p below the heading Dynamic Connection Ports. After pressing the Enter key HCD automatically mirrors the entries on the diagonal of the matrix. That means, HCD applies the same entry not only to the matrix element EA/FA but also to FA/EA.

To ensure a correct mirroring of the entries, press the Enter key each time you changed one complete row.

The following symbols can be shown below the heading Dynamic Connection Ports:

A

Indicates that the dynamic connection is allowed.

P

Indicates that the dynamic connection is prohibited.

*

Indicates that the dynamic connection is set to the default connection attribute (shown in the instruction area on the top of the panel).

\

Indicates the intersection of a port’s column and row. (This is only shown for the matrix of an ESCON switch since the dynamic connection of an ESCD port to itself is prohibited and cannot be changed. A FICON switch, however, supports the definition of such a loopback port.)

-

Indicates that one of the dynamic connection ports is not installed or supported.

To allow you a more comfortable scrolling in the matrix, use the FIND command. For example, type:

FIND EA, FA

to find the row of port EA and the column of port FA.