Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
ALTREC
Control Block Contents
ALTREC DSECT
Cross Reference (Contains links to field and bit definitions)
ALTREC Prolog
NAME : ALTREC DESCRIPTION: ALERT RECORDING RECORD DSECT : ALTREC FUNCTION : ALTREC PROVIDES ERROR, SENSE, AND OTHER STATISTICAL DATA NEEDED FOR ERROR RECORDING ON A SPECIFIED CHANNEL-ATTACHED I/O DEVICE. ALTREC MAPS THE NON-DEVICE SPECIFIC INFORMATION AND SDMALT MAPS THE STORAGE DEVICE SPECIFIC INFORMATION. MODULES WHICH BUILD ALERT RECORDS FOR STORAGE DEVICES MUST COPY BOTH THE SDMALT & ALTREC CONTROL BLOCKS. LOCATED BY : N/A CREATED BY : HCPDUC DELETED BY : HCPIOE AFTER HCPREC HAS COPIED IT INTO A GSDBK.
ALTREC Control Block Content
ALTREC DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ALTREC ALERT RECORDING RECORD THIS CONTROL BLOCK IS AN INTER-OPERATING-SYSTEM BLOCK WHICH IS DEFINED BY IBM CORPORATE STANDARDS. THEREFORE VM/XA DOES NOT CONTROL THE DEFINITIONS NOR DOES IT NECESSARILY USE ALL THE FIELDS DEFINED OR ALL THE BITS DEFINED WITHIN A FIELD. 0000 0 Bitstring 16 ALTHDR (0) ALERT RECORD HEADER 0000 0 Bitstring 1 ALTHTYPE RECORD TYPE 000000A3 ALTRECRD 163 ALERT RECORD TYPE CODE (X'A3') 0001 1 Bitstring 1 ALTSYS SYSTEM/RELEASE LEVEL 111. .... HDRHSSYS X'E0' SYSTEM MASK 1... .... HDRHSOS2 X'80' OS/VS2 .11. .... HDRHSVM X'60' VM .1.. .... HDRHSOS1 X'40' OS/VS1 ..1. .... HDRHSDOS X'20' DOS ...1 1111 HDRHSLVL X'1F' SYSTEM LEVEL MASK (INCLUDES VERSION AND RELEASE LEVEL) ...1 11.. HDRHSVRS X'1C' VERSION NUMBER MASK .... ..11 HDRHSREL X'03' RELEASE LEVEL MASK 0002 2 Bitstring 1 ALTSWS0 SWITCH BYTE ZERO (0) 0003 3 Bitstring 1 ALTSWS1 SWITCH BYTE ONE (1) ...1 .... ALTDASIM X'10' SERVICE INFORMATIONAL MESSAGE (SIM) 0004 4 Bitstring 1 ALTSWS2 SWITCH BYTE TWO (2) 1... .... ALTCHPVA X'80' DASD SERVICE INFORMATIONAL MESSAGE (SIM) 0005 5 Bitstring 1 ALTSWS3 SWITCH BYTE THREE (3) 0006 6 Bitstring 1 ALTRDCNT RECORD COUNT 1111 .... HDRRCSEQ X'F0' RECORD SEQUENCE NUMBER MASK .... 1111 HDRRCPHY X'0F' TOTAL NUM. OF PHYSICAL RECORDS IN LOGICAL RECORD BIT MASK 0007 7 Bitstring 1 * RESERVED FOR FUTURE IBM USE 0008 8 Dbl-Word 8 ALTSFTOD TOD OF SYSTEM FAILURE 0010 16 Dbl-Word 8 ALTCPUID CPUID AND SERIAL NUMBER BEGINNING OF ALERT RECORD SPECIFIC INFORMATION 0018 24 Bitstring 76 ALTSPEC LENGTH OF SPECIFIC INFORMATION 00000064 ALTLENG (*-ALTREC) LENGTH IN BYTES OF ALTREC 0000000D ALTSIZE (*-ALTREC+7)/8 DOUBLEWORD LENGTH OF ALTREC REDEFINITIONS OF ALERT RECORD FIELDS 0008 8 Signed 4 ALTDTEN DATE OF SYSTEM FAILURE 000C 12 Signed 4 ALTTMEN TIME OF SYSTEM FAILURE 0010 16 Bitstring 1 ALTVERNO MACHINE VERSION CODE 0011 17 Bitstring 3 ALTCPSER CPU SERIAL NUMBER 0014 20 Bitstring 2 ALTCPMOD CPU MACHINE MODEL NUMBER 0016 22 Bitstring 2 ALTCPMEL MAX LENGTH OF MACHINE-DEPENDENT MACHINE CHECK EXTENDED LOGOUT AREA
ALTREC Storage Layout
*** ALTREC - ALERT RECORDING RECORD * * +------+------+------+------+------+------+------+------+ * 0 |:HTYPE|ALTSYS|:SWS0 |:SWS1 |:SWS2 |:SWS3 |:RDCNT|//////| * +------+------+------+------+------+------+------+------+ * 8 | ALTSFTOD | * +-------------------------------------------------------+ * 10 | ALTCPUID | * +-------------------------------------------------------+ * 18 | | * = ALTSPEC = * | +---------------------------+ * | | 64 * +---------------------------+ * *** ALTREC - ALERT RECORDING RECORD *** Overlay for ALTSFTOD in ALTREC * * +---------------------------+---------------------------+ * 8 | ALTDTEN | ALTTMEN | * +---------------------------+---------------------------+ * 10 * *** Overlay for ALTSFTOD in ALTREC *** Overlay for ALTCPUID in ALTREC * * +------+--------------------+-------------+-------------+ * 10 |:VERNO| ALTCPSER | ALTCPMOD | ALTCPMEL | * +------+--------------------+-------------+-------------+ * 18 * *** Overlay for ALTCPUID in ALTREC
ALTREC Cross Reference
Symbol Dspl Value -------------- ---- ----- ALTCHPVA 0004 80 ALTCPMEL 0016 ALTCPMOD 0014 ALTCPSER 0011 ALTCPUID 0010 ALTDASIM 0003 10 ALTDTEN 0008 ALTHDR 0000 ALTHTYPE 0000 ALTLENG 0018 00000064 ALTRDCNT 0006 ALTRECRD 0000 000000A3 ALTSFTOD 0008 ALTSIZE 0018 0000000D ALTSPEC 0018 ALTSWS0 0002 ALTSWS1 0003 ALTSWS2 0004 ALTSWS3 0005 ALTSYS 0001 ALTTMEN 000C ALTVERNO 0010 HDRHSDOS 0001 20 HDRHSLVL 0001 1F HDRHSOS1 0001 40 HDRHSOS2 0001 80 HDRHSREL 0001 03 HDRHSSYS 0001 E0 HDRHSVM 0001 60 HDRHSVRS 0001 1C HDRRCPHY 0006 0F HDRRCSEQ 0006 F0
Last updated on 5 Jun 2001 at 12:43:21 EDT.
Copyright IBM Corporation, 1990, 2001