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SMF Type 48 Record

This table shows the record layout for type 48 SMF records
(JES2 SIGNOFF/Stop Line (BSC only)).

List of other SMF record layouts available.
List of sample SMF reports.

Purpose: Record type 48 is written when:

  • A $P LNEn command (to stop a line) is issued
  • A $E LNEn command (to restart a line) is issued, and
  • When a remote user signs off.

This record contains:

  • A record indicator
  • A remote name
  • A line name
  • A password
  • A line adapter address
  • The number of execute channel programs (EXCP)
  • Negative acknowledgements to write text
  • Data checks to read text
  • Time outs to read text.

The field names beginning with MDCTS are for SIGNOFF and contain session totals; the other fields are for $P LNEn commands and contain connection totals.

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SMF Type 48 Record -- JES2 SIGNOFF/Stop Line (BSC only)
Record length. This field and the next field (total of four bytes) form the RDW (record descriptor word). See “Standard SMF Record Header” on page 13-1 for a detailed description.
Segment descriptor (see record length field).
System indicator: Bit Meaning When Set 0-2 Reserved 3-6 Version indicators* 7 Reserved.*See “Standard SMF Record Header” on page 13-1 for a detailed description.
Record type 48 (X'30').
Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
Date when the record was moved into SMF buffer, in the form 0cyydddF. See “Standard SMF Record Header” on page 13-1 for a detailed description.
System identification (from the MEMBER statement).
Subsystem identification — X'0002' signifies JES2.
Length of rest of record, excluding this field.
Record indicator Bit Meaning When Set 0-13 Reserved 14 Record written for LNEn command. 15 Record written for SIGNOFF.
Remote name as defined in JESPARMS. (This field is filled in only if a remote terminal is connected to this line.)
Line name as defined in JESPARMS.
Password as defined in JESPARMS.
Number of EXCPs for this line.
Number of negative acknowledgements to write text.
Number of data checks to read text.
Number of time outs to read text.
Sum of all other line errors.
3-digit hexadecimal device number.
4-digit hexadecimal device number.

The table above is based on the description provided by IBM in its "MVS Systems Management Facilities (SMF)" manual.

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Pacific Systems Group.
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