BUILT BY: FUNCTION: DESCRIPTION:
o 4 C DMTCMX Execute a line driver command
This ALERT DMTSML) to
commands.
Length (X' OF' )
element is passed via
request second-level
Function
Code: X'90',X'91' locid
Count OPERATIONAL NOTES ALERT to a line driver task
processing of BACKSFAC and
Response Code Modifiers (DMTNPT, FWDSPACE The locid specifies the location that is to receive response messages. The count field is
a binary fullword, and specifies the number of units to be backspaced or forwardspaced.
The .eanings of the other fields follow.
Function Code: X'90' Response Codes: X'OO' Element accepted for processing X'10' Element rejected, busy
Modifiers: X'80' Backspace count X'OO' Backspace file (restart)
Function Code: X'91' Response Codes: X'OO' Element accepted for processing X'10' Element rejected, busy
Modifiers: Unused 296 IBM VMj370 Data Areas and Control Block Logic

BUILT BY: DMTCMX FUNCTION: Execute a line driver command DESCRIPTION: This ALERT element is passed via ALERT to a line driTer task (DaI;if, DMTSML) to request second-level processing of FLUSH o
4
C
Length (X' OD' ) Spoolid OPERATIONAL NOTES Function
Code: X'AO' Respcnse
Code Modifiers The locid specifies the location that is to receive response messages. speolii field is a binary halfvord, and specifies the VM/370 RSCS identifier of the actiYe file to flushed. The meanings of the other fields follow. Function Code: X'AO' Response Codes: X'OO' Element accepted for processing X'10' Element rejected, busy Modifiers: X'80' Flush all cOFies, purge file X'40' Flush hold, keep file, do not decrement copy count X'OO' Flush, decrement copy count, purge file if nc copy count reaaimz Appendix C. RSCS Request Elements 297