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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. |
ACCBK
Cross Reference (Contains links to field and bit definitions)
ACCBK Prolog
Name : HCPACCBK
Description: Initial file system access block
STATUS : VM/ESA Version 2, Release 1.0
DSECT : ACCBK
Function : The ACCBK contains information that
describes what the CP file system's initial
access order should look like.
Created by : HCPZPQ
Deleted by : HCPZIACI
ACCBK Control Block Content
ACCBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ACCBK Initial file system access block 0000 0 Signed 2 ACCBKNUM Maximum number of slots 0002 2 Signed 2 * Reserved for future IBM use 0004 4 Signed 4 * Reserved for future IBM use 0008 8 Bitstring 1 ACCBKV (0) Start of variable length data 0008 8 Character 8 ACCUSRID Userid for minidisk 0010 16 Signed 2 ACCVDEV Virtual address of minidisk 0012 18 Bitstring 1 ACCOPTS Options used with linking .1.. .... ACCBNLNK X'40' Do a DEFINE MDISK ..1. .... ACCBNCAC X'20' Don't do cache EQU X'10' Reserved for future IBM use EQU X'08' Reserved for future IBM use EQU X'04' Reserved for future IBM use EQU X'02' Reserved for future IBM use EQU X'01' Reserved for future IBM use EQU X'80' Reserved for future IBM use 0013 19 Bitstring 1 ACCMODE Access mode to use (same as DDEVMODE) 0000000C ACCELEN *-ACCUSRID Length of variable portion 0008 8 Bitstring 0 ACCSTMTS Space for this many 00000028 ACCSIZED (*-ACCBK+7)/8 Length of area in d-words
ACCBK Storage Layout
*** ACCBK - Initial file system access block * * +-------------+-------------+---------------------------+ * 0 | ACCBKNUM |/////////////|///////////////////////////| * +-------------+-------------+---------------------------+ * 8 | | * = ACCBKV = * | | * +-------------------------------------------------------+ * 28 |///////////////////////////////////////////////////////| * =///////////////////////////////////////////////////////= * |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * *** ACCBK - Initial file system access block *** Overlay for ACCBKV in ACCBK * * +-------------------------------------------------------+ * 8 | ACCUSRID | * +-------------+------+------+---------------------------+ * 10 | ACCVDEV |:OPTS |:MODE | 14 * +-------------+------+------+ * *** Overlay for ACCBKV in ACCBK *** Overlay for ACCBKV in ACCBK * * +-------------------------------------------------------+ * 8 | | * = ACCSTMTS = * | | * +-------------------------------------------------------+ * 28 |///////////////////////////////////////////////////////| * =///////////////////////////////////////////////////////= * |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * *** Overlay for ACCBKV in ACCBK
ACCBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----ACCBKNUM 0000
ACCBKV 0008
ACCBNCAC 0012 20
ACCBNLNK 0012 40
ACCELEN 0013 0000000C
ACCMODE 0013
ACCOPTS 0012
ACCSIZED 0008 00000028
ACCSTMTS 0008
ACCUSRID 0008
ACCVDEV 0010
Last updated on 3 Aug 1999 at 11:38:09 EDT.
Copyright IBM Corporation, 1990, 1999