|
Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
MONSK
Cross Reference (Contains links to field and bit definitions)
MONSK Prolog
NAME : HCPMONSK
DESCRIPTION: Monitor SEEKs Mapping
DSECT : MONSK
FUNCTION : Map the data needed for monitoring SEEK CCWs
LOCATED BY : None
CREATED BY : Dynamically created when needed.
DELETED BY : Dynamically deleted when 'using' task is finished.
SERIALIZED : None
Notes : This control block is bilingual. The fields within it can
be referenced in either ASSEMBLER or PLAS modules.
Notes : The fields in this control block are used for FBA
devices as well as CKD/ECKD devices. For FBA
devices a LOCATE is considered a 'SEEK', and
cylinder values are calculated from block numbers.
MONSK Control Block Content
MONSK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MONSK Monitor SEEKs Mapping 0000 0 Signed 4 MONPOSCT Access arm positioning count 00000001 MONPOS1 1 Indicate 1 ccw causing arm movement 0004 4 Signed 4 MONPOSSM Sum of arm motion 00000000 MONPOSM0 0 Indicate 0 arm motion summation 0008 8 Signed 2 MONSCYL 1st 'SEEK' address in chan prog 000A 10 Signed 2 MONECYL Last 'SEEK' address in chan prog 000C 12 Signed 2 MONHEAD Head number 000E 14 Bitstring 1 MONIFLG Information flag .... ..1. MONDPOSD X'02' Monitor SEEK data is valid .... ...1 MONDWRIT X'01' Chan prog has WRITE CCWs 000F 15 Bitstring 1 * Reserved for IBM use 00000002 MONSKSZ ((*-MONSK)+7)/8 MONSK size in double words .... .... MONCYL0 X'00' Cylinder 0 equate
MONSK Storage Layout
*** MONSK - Monitor SEEKs Mapping * * +---------------------------+---------------------------+ * 0 | MONPOSCT | MONPOSSM | * +-------------+-------------+-------------+------+------+ * 8 | MONSCYL | MONECYL | MONHEAD |:IFLG |//////| * +-------------+-------------+-------------+------+------+ * 10 * *** MONSK - Monitor SEEKs Mapping
MONSK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----MONCYL0 000F 00
MONDPOSD 000E 02
MONDWRIT 000E 01
MONECYL 000A
MONHEAD 000C
MONIFLG 000E
MONPOSCT 0000
MONPOSM0 0004 00000000
MONPOSSM 0004
MONPOS1 0000 00000001
MONSCYL 0008
MONSKSZ 000F 00000002
Last updated on 3 Aug 1999 at 12:15:01 EDT.
Copyright IBM Corporation, 1990, 1999