SZQBK Back to Index page
 
Prolog 
Control Block Contents 
   SZQBK DSECT
   SZQSTATS DSECT
   SZQSTATE DSECT
   SZQDEVIN DSECT
   SZQPTHIN DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  SZQBK Prolog Top of page
 
 NAME       : HCPSZQBK
 DESCRIPTION: IOSC_queryDevice Information Block
 DSECT      : SZQBK
 FUNCTION   : The data returned by IOSC_queryDevice is placed in
              HCPSZQBK so CP can access the data.
 LOCATED BY :
 CREATED BY : HCPMNO when device statistics are gathered.
              HCPSZP when path state is queried.
 DELETED BY : HCPMNO when device statistics are gathered.
              HCPSZP when path state is queried.
 COMPATIBILITY AND MIGRATION CONCERNS :
 RELOCATION CONSIDERATIONS : None
 
 
  SZQBK Control Block Content Top of page
 

 SZQBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SZQBK IOSC_queryDevice Information Block 0000 0 Signed 2 SZQQUERY Query type .... ...1 SZQDDEVS 1 SZQDDEVS Query device state .... ..1. SZQDDEVP 2 SZQDDEVP Qry device and path state .... ..11 SZQDDSKS 3 SZQDDSKS Qry device statistics .... .1.. SZQDDKPT 4 SZQDDKPT Qry device and path statistics .... .111 SZQDINFO 7 SZQDINFO Get additional device info Disk statistics 0002 2 Bitstring 1 SZQDSTAT Disk status 0003 3 Bitstring 1 * Reserved for future IBM use 0004 4 Signed 4 SZQDTIME Amount of time disk is active 0008 8 Signed 4 SZQDRATE Kbytes/sec transfer rate 000C 12 Signed 4 SZQDBLKS Number of bytes in a block (blocksize) 0010 16 Signed 4 SZQDXFER Number of transfers to/from disk 0014 20 Signed 4 SZQDBLKR Number of blocks read from disk 0018 24 Signed 4 SZQDBLKW Number of blocks written to disk 001C 28 Signed 4 SZQDSEEK Number of seek operations for disk 0020 32 Signed 4 SZQDQDPT Queue depth 0024 36 Bitstring 80 * Space for new query info Path statistics 0074 116 Bitstring 32 SZQPSTTI (8) Up to 8 path statistics 00000174 SZQSIZEB (*-SZQBK) Length of SZQBK in bytes 0000002F SZQSIZE (*-SZQBK+7)/8 Length of SZQBK in double words 0002 2 Bitstring 1 SZQDEVST Device State 00000001 SZQDNLD 1 SZQDNLD Device not loaded 00000002 SZQDLD 2 SZQDLD Device loaded 00000003 SZQDACT 3 SZQDACT Device active 00000004 SZQDSTP 4 SZQDSTP Device stopped 00000005 SZQDERR 5 SZQDERR Device in error 0003 3 Bitstring 1 SZQPTHCT 0004 4 Bitstring 16 SZQPATHS Path state information This dsect maps SZQPSTTI
 SZQSTATS DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SZQSTATS IOSC_queryDevice Information Block 0000 0 Signed 2 SZQPIDNM Pathid number 0002 2 Bitstring 1 SZQPSTAT Path status - see SZQDSTAT for bit definitions 0003 3 Bitstring 1 * Reserved for future IBM use 0004 4 Signed 4 SZQPTIME Amount of time path is active 0008 8 Signed 4 SZQPRATE Kbytes/sec transfer rate 000C 12 Signed 4 SZQPXFER Number of transfers to/from disk 0010 16 Signed 4 SZQPBLKR Number of blocks read from disk 0014 20 Signed 4 SZQPBLKW Number of blocks written to disk 0018 24 Signed 4 SZQPSEEK Number of seek operations for disk 001C 28 Signed 4 SZQPQDPT Queue depth 00000020 SZQSTSSZ *-SZQSTATS Size of path statistics info in bytes This dsect map SZQPATHS
 SZQSTATE DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SZQSTATE IOSC_queryDevice Information Block 0000 0 Bitstring 1 SZQPTHID Path id 0001 1 Bitstring 1 SZQPTHST Path state 00000001 SZQDPACT 1 SZQDPACT Path is Active 00000002 SZQDPSTP 2 SZQDPSTP Path is stopped 00000003 SZQDPIER 3 SZQDPIER Path could not be initially established 00000004 SZQDPERR 4 SZQDPERR Path established, but since broken *** Path error codes 00000001 SZQPEC01 1 SZQPEC01 Get path id error 00000002 SZQPEC02 2 SZQPEC02 Get parent error 00000003 SZQPEC03 3 SZQPEC03 Open parent device error 00000004 SZQPEC04 4 SZQPEC04 Get parent device set type error 00000005 SZQPEC05 5 SZQPEC05 Bad parent device set type error 00000006 SZQPEC06 6 SZQPEC06 Get path lun id error 00000007 SZQPEC07 7 SZQPEC07 Get path ww name error 00000008 SZQPEC08 8 SZQPEC08 Get parent device load error 00000009 SZQPEC09 9 SZQPEC09 Get parent device number error 0000000A SZQPEC10 10 SZQPEC10 Get parent device open error 0000000B SZQPEC11 11 SZQPEC11 SCIOLQWWN error 0000000C SZQPEC12 12 SZQPEC12 SCIOLSTART error 0000000D SZQPEC13 13 SZQPEC13 SCIOLINQU error 0000000E SZQPEC14 14 SZQPEC14 Bad lun violation error 0000000F SZQPEC15 15 SZQPEC15 IEEE verification memory error 00000010 SZQPEC16 16 SZQPEC16 Multiple devices violation error 00000011 SZQPEC17 17 SZQPEC17 Get serial number memory error 00000012 SZQPEC18 18 SZQPEC18 Report target memory error 00000013 SZQPEC19 19 SZQPEC19 SCIOLCMD error 00000014 SZQPEC20 20 SZQPEC20 Get parent driver error 00000015 SZQPEC21 21 SZQPEC21 SCSI open internal state error 00000016 SZQPEC22 22 SZQPEC22 SCSI open access error 00000017 SZQPEC23 23 SZQPEC23 SCSI open memory error 00000018 SZQPEC24 24 SZQPEC24 SCSI open timeout error 00000019 SZQPEC25 25 SZQPEC25 SCSI open no device error 0000001A SZQPEC26 26 SZQPEC26 CP open internal state error 0000001B SZQPEC27 27 SZQPEC27 CP open access error 0000001C SZQPEC28 28 SZQPEC28 CP open memory error 0000001D SZQPEC29 29 SZQPEC29 CP open timeout error 0000001E SZQPEC30 30 SZQPEC30 CP open no device error 0000001F SZQPEC31 31 SZQPEC31 SCIOLQWWN system error 00000020 SZQPEC32 32 SZQPEC32 SCIOLQWWN copy error 00000021 SZQPEC33 33 SZQPEC33 SCIOLQWWN config error 00000022 SZQPEC34 34 SZQPEC34 SCIOLQWWN memory error 00000023 SZQPEC35 35 SZQPEC35 SCIOLQWWN timeout error 00000024 SZQPEC36 36 SZQPEC36 SCIOLQWWN no device error 00000026 SZQPEC38 38 SZQPEC38 SCIOLSTART system error 00000027 SZQPEC39 39 SZQPEC39 SCIOLSTART config error 00000029 SZQPEC41 41 SZQPEC41 SCIOLSTART memory error 0000002A SZQPEC42 42 SZQPEC42 SCIOLSTART timeout error 0000002B SZQPEC43 43 SZQPEC43 SCIOLSTART no device error 0000002E SZQPEC46 46 SZQPEC46 SCIOLINQU system error 0000002F SZQPEC47 47 SZQPEC47 SCIOLINQU copy error 00000030 SZQPEC48 48 SZQPEC48 SCIOLINQU closed error 00000032 SZQPEC50 50 SZQPEC50 SCIOLINQU memory error 00000033 SZQPEC51 51 SZQPEC51 SCIOLINQU timeout error 00000034 SZQPEC52 52 SZQPEC52 SCIOLINQU no device error 00000036 SZQPEC54 54 SZQPEC54 SCIOLCMD system error 00000037 SZQPEC55 55 SZQPEC55 SCIOLCMD config error 00000038 SZQPEC56 56 SZQPEC56 SCIOLCMD copy error 0000003A SZQPEC58 58 SZQPEC58 SCIOLCMD memory error 0000003B SZQPEC59 59 SZQPEC59 SCIOLCMD timeout error 0002 2 Bitstring 1 SZQPTHEC Path error code 00000003 SZQSTASZ *-SZQSTATE Size of path state information in bytes This dsect is for IOSC_QT_DEVICE_INFO returned device data. (query device information IOSC_QOK_DISK_INFO) This dsect overlays the SZQBK from the top up to but not including SZQPSTTI. This dsect may need to change when deviceInfo_iocs H struct is updated. Make sure there is enough space in the SZQBK for these overlay fields
 SZQDEVIN DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SZQDEVIN IOSC_queryDevice Information Block 0000 0 Signed 2 SZQQTYPE Query type. Use SZQQUERY equates 0002 2 Bitstring 1 SZQLUNST LUN state. Use SZQDSTAT equates 0003 3 Bitstring 1 SZQDEVTY Peripheral device type from SCSI standard inquiry 0004 4 Bitstring 1 SZQVNDR1 Vendor-specific storage byte 0005 5 Bitstring 1 SZQDPTHS Total paths for this device 0006 6 Bitstring 8 SZQVENID EBCDIC vendor ID for device 000E 14 Bitstring 16 SZQPROID EBCDIC product ID for device 001E 30 Bitstring 4 SZQPRORL EBCDIC product revision level 0022 34 Signed 2 SZQQDPTH Configured I/O Queue Depth 0024 36 Signed 4 SZQBLKSZ Blocksize of device 0028 40 Dbl-Word 8 SZQNUMBK Number of blocks for this device 0030 48 Dbl-Word 8 SZQBLKSL Num of blocks at load time 0038 56 Signed 4 SZQFLAGS (0) Device specific cache flags 0038 56 Bitstring 1 SZQFLAG1 Device specific cache flags .... .1.. SZQFCWOB X'04' SZQFCWOB FAStT-cache without batteries .... ..1. SZQFFWT X'02' SZQFFWT FAStT-force write thru on two minute warning from ups .... ...1 SZQFCME X'01' SZQFCME FAStT-cache mirror enable 0039 57 Bitstring 1 SZQFLAG2 Device specific cache flags 1... .... SZQFABPR X'80' SZQFABPR FAStT-alt ctrl batteries present .1.. .... SZQFBPR X'40' SZQFBPR FAStT-batteries present ..1. .... SZQFACMA X'20' SZQFACMA FAStT-alt ctrl cache mirror activ ...1 .... SZQFCMA X'10' SZQFCMA FAStT-ctrl cache mirror active .... 1... SZQFABOK X'08' SZQFABOK FAStT-alt ctrl batteries ok .... .1.. SZQFBOK X'04' SZQFBOK FAStT-ctrl batteries ok .... ..1. SZQFRCA X'02' SZQFRCA FAStT-read cache active .... ...1 SZQFWCA X'01' SZQFWCA FAStT-write cache active 003A 58 Bitstring 1 SZQFLAG3 Device specific cache flags 003B 59 Bitstring 1 SZQFLAG4 Device specific cache flags 003C 60 Bitstring 2 * Reserved for future IBM use 003E 62 Bitstring 1 SZQIEEET IEEE id type 003F 63 Bitstring 1 SZQIEEEL IEEE id length 0040 64 Address 4 SZQIEEE Address OF EBCDIC IEEE id 0044 68 Address 4 SZQSERAD Address of Serial Number 0048 72 Bitstring 1 SZQSERLN Length of Serial Number 0049 73 Bitstring 15 * Reserved for future IBM use 00000058 SZQDEVSZ *-SZQDEVIN Size of device information This dsect is for IOSC_QT_DEVICE_INFO returned path data. (query device information IOSC_QOK_PATH_INFO) Overlays SZQPSTTI but is formatted to use only 8 24 byte areas This dsect must be updated when pathInfo_iosc H structure is updated (but they are not mirrored).
 SZQPTHIN DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SZQPTHIN IOSC_queryDevice Information Block 0000 0 Bitstring 1 * Reserved for future IBM use 0001 1 Bitstring 1 SZQPINST Path Status (codes defined in SZQPTHST) 0002 2 Bitstring 1 SZQCONTY Connection type .... ...1 SZQSWTCH 1 SZQSWTCH Switched connection .... ..1. SZQPTPT 2 SZQPTPT Point to point connection 0003 3 Bitstring 1 SZQPREFP Preferred path if 1750 .... ...1 SZQPREF 1 SZQPREF Preferred path for 1750 0004 4 Signed 4 SZQPATHI Path id for this path 0008 8 Dbl-Word 8 SZQWWPN World Wide Port Name 0010 16 Dbl-Word 8 SZQSCID SCSI id 00000018 SZQPTHSZ *-SZQPTHIN Size of path information
 
 
  SZQBK Storage Layout Top of page
 
          
*** SZQBK - IOSC_queryDevice Information Block
*
*     +-------------+------+------+---------------------------+
*   0 |  SZQQUERY   |:DSTAT|//////|         SZQDTIME          |
*     +-------------+------+------+---------------------------+
*   8 |         SZQDRATE          |         SZQDBLKS          |
*     +---------------------------+---------------------------+
*  10 |         SZQDXFER          |         SZQDBLKR          |
*     +---------------------------+---------------------------+
*  18 |         SZQDBLKW          |         SZQDSEEK          |
*     +---------------------------+---------------------------+
*  20 |         SZQDQDPT          |///////////////////////////|
*     +---------------------------+///////////////////////////|
*  28 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+---------------------------+
*     |///////////////////////////|                           |
*     +---------------------------+                           |
*  78 |                                                       |
*     =                       SZQPSTTI                        =
*     |                           +---------------------------+
*     |                           | 174
*     +---------------------------+
*
*** SZQBK - IOSC_queryDevice Information Block
          
*** Overlay for SZQDSTAT in SZQBK
*
*                   +------+------+---------------------------+
*   0 ...         2 |:DEVST|:PTHCT|                           |
*     +-------------+------+------+                           |
*     |                       SZQPATHS                        |
*     |                           +---------------------------+
*     |                           | 14
*     +---------------------------+
*
*** Overlay for SZQDSTAT in SZQBK
          
*** SZQSTATS - IOSC_queryDevice Information Block
*
*     +-------------+------+------+---------------------------+
*   0 |  SZQPIDNM   |:PSTAT|//////|         SZQPTIME          |
*     +-------------+------+------+---------------------------+
*   8 |         SZQPRATE          |         SZQPXFER          |
*     +---------------------------+---------------------------+
*  10 |         SZQPBLKR          |         SZQPBLKW          |
*     +---------------------------+---------------------------+
*  18 |         SZQPSEEK          |         SZQPQDPT          |
*     +---------------------------+---------------------------+
*  20
*
*** SZQSTATS - IOSC_queryDevice Information Block
          
*** SZQSTATE - IOSC_queryDevice Information Block
*
*     +------+------+------+
*   0 |:PTHID|:PTHST|:PTHEC| 3
*     +------+------+------+
*
*** SZQSTATE - IOSC_queryDevice Information Block
          
*** SZQDEVIN - IOSC_queryDevice Information Block
*
*     +-------------+------+------+------+------+-------------+
*   0 |  SZQQTYPE   |:LUNST|:DEVTY|:VNDR1|:DPTHS|   (006)-    |
*     +-------------+------+------+------+------+-------------+
*   8 |               -SZQVENID                 |             |
*     +-----------------------------------------+             |
*     |                       SZQPROID                        |
*     |                                         +-------------+
*     |                                         | SZQPRORL-   |
*     +-------------+-------------+-------------+-------------+
*  20 |   -(01E)    |  SZQQDPTH   |         SZQBLKSZ          |
*     +-------------+-------------+---------------------------+
*  28 |                       SZQNUMBK                        |
*     +-------------------------------------------------------+
*  30 |                       SZQBLKSL                        |
*     +------+------+------+------+-------------+------+------+
*  38 |:FLAG1|:FLAG2|:FLAG3|:FLAG4|/////////////|:IEEET|:IEEEL|
*     +------+------+------+------+-------------+------+------+
*  40 |         SZQIEEE           |         SZQSERAD          |
*     +------+--------------------+---------------------------+
*  48 |:SERLN|////////////////////////////////////////////////|
*     +------+////////////////////////////////////////////////|
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  58
*
*** SZQDEVIN - IOSC_queryDevice Information Block
          
*** SZQPTHIN - IOSC_queryDevice Information Block
*
*     +------+------+------+------+---------------------------+
*   0 |//////|:PINST|:CONTY|:PREFP|         SZQPATHI          |
*     +------+------+------+------+---------------------------+
*   8 |                       SZQWWPN                         |
*     +-------------------------------------------------------+
*  10 |                       SZQSCID                         |
*     +-------------------------------------------------------+
*  18
*
*** SZQPTHIN - IOSC_queryDevice Information Block
 
 
  SZQBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
SZQBLKSL       0030
SZQBLKSZ       0024
SZQCONTY       0002
SZQDACT        0002 00000003
SZQDBLKR       0014
SZQDBLKS       000C
SZQDBLKW       0018
SZQDDEVP       0000 02
SZQDDEVS       0000 01
SZQDDKPT       0000 04
SZQDDSKS       0000 03
SZQDERR        0002 00000005
SZQDEVST       0002
SZQDEVSZ       0049 00000058
SZQDEVTY       0003
SZQDINFO       0000 07
SZQDLD         0002 00000002
SZQDNLD        0002 00000001
SZQDPACT       0001 00000001
SZQDPERR       0001 00000004
SZQDPIER       0001 00000003
SZQDPSTP       0001 00000002
SZQDPTHS       0005
SZQDQDPT       0020
SZQDRATE       0008
SZQDSEEK       001C
SZQDSTAT       0002
SZQDSTP        0002 00000004
SZQDTIME       0004
SZQDXFER       0010
SZQFABOK       0039 08
SZQFABPR       0039 80
SZQFACMA       0039 20
SZQFBOK        0039 04
SZQFBPR        0039 40
SZQFCMA        0039 10
SZQFCME        0038 01
SZQFCWOB       0038 04
SZQFFWT        0038 02
SZQFLAGS       0038
SZQFLAG1       0038
SZQFLAG2       0039
SZQFLAG3       003A
SZQFLAG4       003B
SZQFRCA        0039 02
SZQFWCA        0039 01
SZQIEEE        0040
SZQIEEEL       003F
SZQIEEET       003E
SZQLUNST       0002
SZQNUMBK       0028
SZQPATHI       0004
SZQPATHS       0004
SZQPBLKR       0010
SZQPBLKW       0014
SZQPEC01       0001 00000001
SZQPEC02       0001 00000002
SZQPEC03       0001 00000003
SZQPEC04       0001 00000004
SZQPEC05       0001 00000005
SZQPEC06       0001 00000006
SZQPEC07       0001 00000007
SZQPEC08       0001 00000008
SZQPEC09       0001 00000009
SZQPEC10       0001 0000000A
SZQPEC11       0001 0000000B
SZQPEC12       0001 0000000C
SZQPEC13       0001 0000000D
SZQPEC14       0001 0000000E
SZQPEC15       0001 0000000F
SZQPEC16       0001 00000010
SZQPEC17       0001 00000011
SZQPEC18       0001 00000012
SZQPEC19       0001 00000013
SZQPEC20       0001 00000014
SZQPEC21       0001 00000015
SZQPEC22       0001 00000016
SZQPEC23       0001 00000017
SZQPEC24       0001 00000018
SZQPEC25       0001 00000019
SZQPEC26       0001 0000001A
SZQPEC27       0001 0000001B
SZQPEC28       0001 0000001C
SZQPEC29       0001 0000001D
SZQPEC30       0001 0000001E
SZQPEC31       0001 0000001F
SZQPEC32       0001 00000020
SZQPEC33       0001 00000021
SZQPEC34       0001 00000022
SZQPEC35       0001 00000023
SZQPEC36       0001 00000024
SZQPEC38       0001 00000026
SZQPEC39       0001 00000027
SZQPEC41       0001 00000029
SZQPEC42       0001 0000002A
SZQPEC43       0001 0000002B
SZQPEC46       0001 0000002E
SZQPEC47       0001 0000002F
SZQPEC48       0001 00000030
SZQPEC50       0001 00000032
SZQPEC51       0001 00000033
SZQPEC52       0001 00000034
SZQPEC54       0001 00000036
SZQPEC55       0001 00000037
SZQPEC56       0001 00000038
SZQPEC58       0001 0000003A
SZQPEC59       0001 0000003B
SZQPIDNM       0000
SZQPINST       0001
SZQPQDPT       001C
SZQPRATE       0008
SZQPREF        0003 01
SZQPREFP       0003
SZQPROID       000E
SZQPRORL       001E
SZQPSEEK       0018
SZQPSTAT       0002
SZQPSTTI       0074
SZQPTHCT       0003
SZQPTHEC       0002
SZQPTHID       0000
SZQPTHST       0001
SZQPTHSZ       0010 00000018
SZQPTIME       0004
SZQPTPT        0002 02
SZQPXFER       000C
SZQQDPTH       0022
SZQQTYPE       0000
SZQQUERY       0000
SZQSCID        0010
SZQSERAD       0044
SZQSERLN       0048
SZQSIZE        0074 0000002F
SZQSIZEB       0074 00000174
SZQSTASZ       0002 00000003
SZQSTSSZ       001C 00000020
SZQSWTCH       0002 01
SZQVENID       0006
SZQVNDR1       0004
SZQWWPN        0008
 
This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:20:09 EDT.
Copyright IBM Corporation, 1990, 2020