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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. |
MDCBK
Cross Reference (Contains links to field and bit definitions)
MDCBK Prolog
Name : HCPMDCBK
Description: Storage area for SET MDC/Q MDC cmnds
DSECT : MDCBK
Status : VM/ESA Version 2, Release 3.0
Function : Reponse buffer and work area for SET MDC
and Query MDC commands
Located by : Registers in HCPMCP, HCPMCR, HCPMCQ, HCPMCO,
HCPMCN
Created by : HCPMCP and HCPMCO
Deleted by : HCPMCP and HCPMCO
Serialized : None required
MDCBK Control Block Content
MDCBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MDCBK Storage area for SET MDC/Q MDC cmnds 0000 0 Dbl-Word 8 MDCPLIST (0) Start of parameter list used by parser 0000 0 Signed 4 MDCWORD1 (0) First word of parser parms 0000 0 Bitstring 1 MDCFLAG1 Flag byte 1 1... .... MDCON X'80' ON was issued .1.. .... MDCOFF X'40' OFF was issued ..1. .... MDCFLUSH X'20' FLUSH was issued ...1 .... MDCSYS X'10' SYSTEM was issued .... 1... MDCRDV X'08' RDEV was issued .... .1.. MDCMDISK X'04' MDISK was issued .... ..1. MDC1DEV X'02' Only 1 device was issued .... ...1 MDCDRCT X'01' DRCT option was issued 0001 1 Bitstring 1 MDCFLAG2 Flag byte 2 .1.. .... MDCUSER X'40' USERID was specified ..1. .... MDCMNST X'20' STORAGE was issued ...1 .... MDCXST X'10' XSTORE was issued .... 1... MDCMAX X'08' MAX was issued .... .1.. MDCSIZE1 X'04' At least 1 token was issued .... ..1. MDCSIZE2 X'02' 2 tokens were issued .... ...1 MDCALL X'01' ALL was issued EQU X'80' Reserved HI30BBDB 0002 2 Bitstring 1 MDCFLAG3 Flag byte 3 (cleared after each device in range has completed processing). Flag only used when for RDEV and MDISK and class G flush options. 1... .... MDCTCLCK X'80' Main MDC lock held .1.. .... MDCRDLCK X'40' RDEV lock held 0003 3 Bitstring 1 MDCFLAG4 Flag byte 4 1... .... MDC1OK X'80' At least one device was processed successfully .1.. .... MDCNOLOG X'40' User specified not logged on ..1. .... MDCINS X'20' INSERT option requested ...1 .... MDCDET X'10' DETAILS option requested .... 1... MDCDFON X'08' DFLTON was requested .... .1.. MDCDFOFF X'04' DFLTOFF was requested .... ..1. MDCERRNG X'02' Error encountered while processing a range .... ...1 MDCBIAS X'01' MDC BIAS requested 0004 4 Signed 4 MDCWORD2 (0) Second word of parser parms 0004 4 Bitstring 1 MDCFLAG5 Flag byte 5 1... .... MDCRECRD X'80' RECORDMDC specified 0005 5 Bitstring 3 * Reserved 0008 8 Dbl-Word 8 MDCDEVS (0) Device range specified 0008 8 Signed 4 MDCDEVL First device 00000004 MDCDEVSZ *-MDCDEVL Length of 1 device 000C 12 Signed 4 MDCDEVH 2nd device (1st=2nd if only one was specified) 0010 16 Character 8 MDCNAME Userid specified 00000008 MDCNMSZ *-MDCNAME Length of userid 0018 24 Character 8 MDCTOK1 First min/max token 00000008 MDCTOKSZ *-MDCTOK1 Length of a token 0020 32 Character 8 MDCTOK2 Second min/max token 00000028 MDCPLEN *-MDCBK End of parm list for parser 0028 40 Signed 2 MDCDEVC Current device 002A 42 Signed 2 * (0) Reserved for IBM use The following sequence handles message 7335-01. 002A 42 Character 9 MDCACT Action to specify in message 0033 51 Character 1 MDCA1 Fence The following sequence handles messages 0045-01, 1921-02, 1921-04, 7337-01, 7337-02, 7340-01. 0034 52 Character 1 MDCSUB (0) 0034 52 Character 8 MDCAUSR Userid in message 003C 60 Character 1 MDCA2 fence 003D 61 Character 4 MDCADEVL Low/only device in range 0041 65 Character 1 MDCA3 fence 0042 66 Character 4 MDCADEVH High device in range 0046 70 Character 1 MDCA4 fence The following sequence handles message 7338-01. 0047 71 Character 1 MDCMAIN (0) 0047 71 Character 8 MDCMNMIN Minimum of main storage 004F 79 Character 1 MDCS1 fence 0050 80 Character 8 MDCMNMAX Maximum of main storage 0058 88 Character 1 MDCS2 fence 0059 89 Character 8 MDCMNUSE Amount in use of main storage 0061 97 Character 1 MDCS3 fence 0062 98 Character 8 MDCMBIAS BIAS for main storage 006A 106 Character 1 MDCS4 fence The following sequence handles messages 7339-01, 7339-02, 7339-03. 006B 107 Character 1 MDCXSTOR (0) 006B 107 Character 8 MDCXSMIN Minimum of xstore 0073 115 Character 1 MDCS5 fence 0074 116 Character 8 MDCXSMAX Maximum of xstore 007C 124 Character 1 MDCS6 fence 007D 125 Character 8 MDCXSUSE Amount in use of xstore 0085 133 Character 1 MDCS7 fence 0086 134 Character 8 MDCXBIAS BIAS for XSTORE 008E 142 Character 1 MDCS8 fence 008F 143 Character 8 MDCXSMXP Maximum pending of xstore 0097 151 Character 1 MDCS9 fence 0098 152 Character 8 MDCXSMNP Minimum pending of xstore 00A0 160 Character 1 MDCS10 fence The following sequence handles messages 1921-01, 1921-03, 7336-01, 7336-02. 0034 52 Character 4 MDCBDEVL Low/only device in range 0038 56 Character 1 MDCB1 fence 0039 57 Character 4 MDCBDEVH High device in range 003D 61 Character 1 MDCB2 fence The following sequence handles message 7341-01. 002A 42 Character 3 MDCLPATH MDC availability (on,off) 002D 45 Character 1 MDCL1 fence 002E 46 Character 7 MDCLMSTT Status of minidisk 0035 53 Character 1 MDCL2 fence 0036 54 Character 8 MDCLUSER Userid owning minidisk 003E 62 Character 1 MDCL3 fence 003F 63 Character 4 MDCLVDEV Owning vdev number 0043 67 Character 1 MDCL4 fence The following sequence handles message 7342-01. 002A 42 Character 4 MDCQIDEV Input vdev number 002E 46 Character 1 MDCQ0 fence 002F 47 Character 3 MDCQPATH MDC availability (on,off) 0032 50 Character 1 MDCQ1 fence 0033 51 Character 7 MDCQMSTT Status of minidisk 003A 58 Character 1 MDCQ2 fence 003B 59 Character 8 MDCQUSER Userid owning minidisk 0043 67 Character 1 MDCQ3 fence 0044 68 Character 4 MDCQVDEV Owning vdev number 0048 72 Character 1 MDCQ4 fence 0049 73 Character 9 MDCQRSTT Status of rdev 0052 82 Character 1 MDCQ5 fence 0053 83 Character 4 MDCQRDEV Rdev number 0057 87 Character 1 MDCQ6 fence The following sequence handles message 0003-01. 0034 52 Character 8 MDCOPT Invalid option entered 003C 60 Character 1 MDCO1 fence The following sequence handles message 1921-05. 0034 52 Character 6 MDCSSYS System 003A 58 Character 1 MDCSS1 fence 003B 59 Character 4 MDCSSYSC Code number 003F 63 Character 1 MDCSS2 fence 00000015 MDCSIZE (*-MDCBK+7)/8 Size, in doublewords, of MDCBK
MDCBK Storage Layout
*** MDCBK - Storage area for SET MDC/Q MDC cmnds * * +------+------+------+------+------+--------------------+ * 0 |:FLAG1|:FLAG2|:FLAG3|:FLAG4|:FLAG5|////////////////////| * +------+------+------+------+------+--------------------+ * 8 | MDCDEVL | MDCDEVH | * +---------------------------+---------------------------+ * 10 | MDCNAME | * +-------------------------------------------------------+ * 18 | MDCTOK1 | * +-------------------------------------------------------+ * 20 | MDCTOK2 | * +-------------+-----------------------------------------+ * 28 | MDCDEVC | MDCACT | * +-------------+ +------+---------------------------+ * 30 | |MDCA1 | MDCAUSR- | * +--------------------+------+------+--------------------+ * 38 | -(034) |MDCA2 | MDCADEVL- | * +------+------+-------------+------+------+------+------+ * 40 |-(03D)|MDCA3 | MDCADEVH |MDCA4 |(047)-| * +------+------+---------------------------+------+------+ * 48 | -MDCMNMIN |MDCS1 | * +------------------------------------------------+------+ * 50 | MDCMNMAX | * +------+------------------------------------------------+ * 58 |MDCS2 | MDCMNUSE- | * +------+------+-----------------------------------------+ * 60 |-(059)|MDCS3 | MDCMBIAS- | * +------+------+------+----------------------------------+ * 68 | -(062) |MDCS4 | MDCXSMIN- | * +-------------+------+------+---------------------------+ * 70 | -(06B) |MDCS5 | MDCXSMAX- | * +--------------------+------+------+--------------------+ * 78 | -(074) |MDCS6 | (07D)- | * +---------------------------+------+------+-------------+ * 80 | -MDCXSUSE |MDCS7 | (086)- | * +----------------------------------+------+------+------+ * 88 | -MDCXBIAS |MDCS8 |(08F)-| * +-----------------------------------------+------+------+ * 90 | -MDCXSMXP |MDCS9 | * +------------------------------------------------+------+ * 98 | MDCXSMNP | * +------+------------------------------------------------+ * A0 |MDCS10| A1 * +------+ * *** MDCBK - Storage area for SET MDC/Q MDC cmnds *** Overlay for MDCSUB in MDCBK * * +---------------------------+ * 30 ... 34 | MDCBDEVL | * +------+--------------------+------+------+-------------+ * 38 |MDCB1 | MDCBDEVH |MDCB2 | 3E * +------+---------------------------+------+ * *** Overlay for MDCSUB in MDCBK *** Overlay for MDCACT in MDCBK * * +--------------------+------+-------------+ * 28 ... 2A | MDCLPATH |MDCL1 | (02E)- | * +-------------+--------------------+------+-------------+ * 30 | -MDCLMSTT |MDCL2 | (036)- | * +----------------------------------+------+------+------+ * 38 | -MDCLUSER |MDCL3 |(03F)-| * +--------------------+------+-------------+------+------+ * 40 | -MDCLVDEV |MDCL4 | 44 * +--------------------+------+ * *** Overlay for MDCACT in MDCBK *** Overlay for MDCACT in MDCBK * * +---------------------------+------+------+ * 28 ... 2A | MDCQIDEV |MDCQ0 |(02F)-| * +-------------+------+--------------------+------+------+ * 30 | -MDCQPATH |MDCQ1 | MDCQMSTT- | * +-------------+------+----------------------------------+ * 38 | -(033) |MDCQ2 | MDCQUSER- | * +-------------+------+------+---------------------------+ * 40 | -(03B) |MDCQ3 | MDCQVDEV | * +------+-------------+------+---------------------------+ * 48 |MDCQ4 | MDCQRSTT | * +------+ +------+---------------------------+------+ * 50 | |MDCQ5 | MDCQRDEV |MDCQ6 | * +-------------+------+---------------------------+------+ * 58 * *** Overlay for MDCACT in MDCBK *** Overlay for MDCSUB in MDCBK * * +---------------------------+ * ... 34 | MDCOPT- | * +---------------------------+------+--------------------+ * 38 | -(034) |MDCO1 | 3D * +---------------------------+------+ * *** Overlay for MDCSUB in MDCBK *** Overlay for MDCSUB in MDCBK * * +---------------------------+ * ... 34 | MDCSSYS- | * +-------------+------+------+--------------------+------+ * 38 | -(034) |MDCSS1| MDCSSYSC |MDCSS2| * +-------------+------+---------------------------+------+ * 40 * *** Overlay for MDCSUB in MDCBK
MDCBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----MDCACT 002A
MDCADEVH 0042
MDCADEVL 003D
MDCALL 0001 01
MDCAUSR 0034
MDCA1 0033
MDCA2 003C
MDCA3 0041
MDCA4 0046
MDCBDEVH 0039
MDCBDEVL 0034
MDCBIAS 0003 01
MDCB1 0038
MDCB2 003D
MDCDET 0003 10
MDCDEVC 0028
MDCDEVH 000C
MDCDEVL 0008
MDCDEVS 0008
MDCDEVSZ 0008 00000004
MDCDFOFF 0003 04
MDCDFON 0003 08
MDCDRCT 0000 01
MDCERRNG 0003 02
MDCFLAG1 0000
MDCFLAG2 0001
MDCFLAG3 0002
MDCFLAG4 0003
MDCFLAG5 0004
MDCFLUSH 0000 20
MDCINS 0003 20
MDCLMSTT 002E
MDCLPATH 002A
MDCLUSER 0036
MDCLVDEV 003F
MDCL1 002D
MDCL2 0035
MDCL3 003E
MDCL4 0043
MDCMAIN 0047
MDCMAX 0001 08
MDCMBIAS 0062
MDCMDISK 0000 04
MDCMNMAX 0050
MDCMNMIN 0047
MDCMNST 0001 20
MDCMNUSE 0059
MDCNAME 0010
MDCNMSZ 0010 00000008
MDCNOLOG 0003 40
MDCOFF 0000 40
MDCON 0000 80
MDCOPT 0034
MDCO1 003C
MDCPLEN 0020 00000028
MDCPLIST 0000
MDCQIDEV 002A
MDCQMSTT 0033
MDCQPATH 002F
MDCQRDEV 0053
MDCQRSTT 0049
MDCQUSER 003B
MDCQVDEV 0044
MDCQ0 002E
MDCQ1 0032
MDCQ2 003A
MDCQ3 0043
MDCQ4 0048
MDCQ5 0052
MDCQ6 0057
MDCRDLCK 0002 40
MDCRDV 0000 08
MDCRECRD 0004 80
MDCSIZE 003F 00000015
MDCSIZE1 0001 04
MDCSIZE2 0001 02
MDCSSYS 0034
MDCSSYSC 003B
MDCSS1 003A
MDCSS2 003F
MDCSUB 0034
MDCSYS 0000 10
MDCS1 004F
MDCS10 00A0
MDCS2 0058
MDCS3 0061
MDCS4 006A
MDCS5 0073
MDCS6 007C
MDCS7 0085
MDCS8 008E
MDCS9 0097
MDCTCLCK 0002 80
MDCTOKSZ 0018 00000008
MDCTOK1 0018
MDCTOK2 0020
MDCUSER 0001 40
MDCWORD1 0000
MDCWORD2 0004
MDCXBIAS 0086
MDCXSMAX 0074
MDCXSMIN 006B
MDCXSMNP 0098
MDCXSMXP 008F
MDCXST 0001 10
MDCXSTOR 006B
MDCXSUSE 007D
MDC1DEV 0000 02
MDC1OK 0003 80
Last updated on 3 Aug 1999 at 12:13:33 EDT.
Copyright IBM Corporation, 1990, 1999