When you select "Log Data set defaults" from the Log/List pull-down on the ISPF Settings panel action bar, the panel shown in Figure 1 is displayed.

   Log/List  Function keys  Colors  Environ  Workstation  Identifier  Help
 ─ ┌──────────────────────────── ISPF Settings ────────────────────────────┐ ──
   │                        Log Data Set Defaults                          │
   │                                                          More:     +  │  +
 O │ Process option . . . .    1. Print data set and delete                │
   │                           2. Delete data set (without printing)       │
   │                           3. Keep data set (append subsequent         │
   │                              information to same data set)            │
   │                           4. Keep data set and allocate new data set  │
   │ Batch SYSOUT class . .                                                │
   │ Local printer ID or                                                   │
   │ writer-name  . . . . .                                                │
   │ Local SYSOUT class . .                                                │
   │ Lines per page . . . . 60                                             │
   │ Primary pages  . . . . 10                                             │
   │ Secondary pages  . . . 10                                             │
   │ Log Message ID . . . .    (/ = Yes)                                   │
   │  F1=Help       F2=Split      F3=Exit       F7=Backward   F8=Forward   │
 T │  F9=Swap      F12=Cancel                                              │
   └───────────────────────────────────────────────────────────────────────┘

 Command ===> LOGDSD
  F1=Help      F2=Split     F3=Exit      F7=Backward  F8=Forward   F9=Swap
 F10=Actions  F12=Cancel

Local printer ID or writer name

Enter the name that your installation has assigned to an IBM® 328x type of printer or the name of the external writer program. The default is blank. If you enter a name in this field, be sure to leave the Batch SYSOUT class field empty.

Lines per page

ISPF uses this value to determine when to cause a page eject if the eject control is not provided by the dialog; for example, when the dialog issues a LIST service request without the CC keyword specified.

Lines per page can range from 1 to 999. The initial default is 60. Normal values for lines per page are:

60

When printing 6 lines per inch

80

When printing 8 lines per inch.

Primary/Secondary pages

Primary/secondary allocation parameters are specified in terms of the anticipated number of pages of printout. These values are automatically converted by ISPF to the appropriate number of blocks before allocating space for the log data set. The initial default setting is 100 for both Primary pages and Secondary pages.

Specify a primary allocation of zero to prevent allocation and generation of the log.

If you modify the primary/secondary allocation parameters after the data set has been allocated, the new values take effect the next time you start ISPF. The log data set is allocated the first time you perform some action that results in a log message, such as saving edited data or submitting a batch job.

Log Message ID

If you select the Log Message ID option, the message ID is automatically added to the long message text written in the LOG data set.

If you request default processing options for the log data set, these rules apply:

• If you specify Print data set and delete (1), you must also specify a Batch SYSOUT class and job statement information. If you specify Print data set and delete for both log and list, you can specify different Batch SYSOUT classes, but only one job is submitted for printing both data sets.
• If you specify routing to a local printer, you must specify a Local printer ID or writer name, and Batch SYSOUT must be blank. You can also enter a Local SYSOUT class if one is defined.

If you do not follow these rules or do not specify default processing options, primary option X or the RETURN command causes the final termination panel to be displayed.