PDMBK Back to Index page
 
Prolog 
Control Block Contents 
   PDMBK 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.

 
  PDMBK Control Block Content Top of page
 

 PDMBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure PDMBK PDR Management Block 0000 0 Dbl-Word 8 PDMPDRLK (3) PDR lock 0018 24 Address 4 PDMPDRBK PDR address 001C 28 Address 4 PDMRLIOR Read and Lock IORBK address 0020 32 Address 4 PDMWUIOR Write and Unlock IORBK address 0024 36 Address 4 PDMRKIOR Read Key IORBK address 0028 40 Address 4 PDMFMIOR Format IORBK address 002C 44 Address 4 PDMPLXPR PDR RDEV address 0030 48 Signed 4 PDMRKRC Read Key Return Code 0034 52 Signed 4 * Reserved for IBM use 0038 56 Signed 4 PDMRIOER Number of read I/O errors 003C 60 Signed 4 PDMUIOER Number of update I/O errors 0040 64 Dbl-Word 8 PDMKEY (0) PDR search key 0040 64 Bitstring 1 PDMKEYSS (0) Key search string 0040 64 Character 8 PDMIDENT PDR identifier 0048 72 Character 8 PDMPNAME SSI Cluster name 0050 80 Character 8 PDMSTATE PDR State 0058 88 Signed 4 * (6) Reserved for IBM use 0070 112 Bitstring 16 PDMSTAMP PDR time stamp 0080 128 Dbl-Word 8 PDMRLCCW (8) Read and Lock CCWs 00C0 192 Dbl-Word 8 PDMWUCCW (6) Write and Unlock CCWs 00F0 240 Dbl-Word 8 PDMRKCCW (4) Read Key CCWs 0110 272 Dbl-Word 8 PDMFMCCW (3) Format CCWS 0128 296 Signed 4 PDMCTRP Number of calls to HCPPDRRP 012C 300 Signed 4 PDMCTRDS Number of attempts to read PDR 0130 304 Signed 4 PDMCTUP Number of calls to HCPPDRUP 0134 308 Signed 4 PDMCTSTL Number of lock steals 0138 312 Bitstring 64 PDMOSINF Old local system PDR information 0178 376 Dbl-Word 8 PDMIRBLK (12) Interruption Response Block 01D8 472 Bitstring 64 PDMKEYSV PDR key save area 00000218 PDMBKLEN *-PDMBK PDM Block length 00000043 PDMBKSIZ (PDMBKLEN+7)/8 PDM Block size in doublewords
 
 
  PDMBK Storage Layout Top of page
 
          
*** PDMBK - PDR Management Block
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                       PDMPDRLK                        =
*     |                                                       |
*     +---------------------------+---------------------------+
*  18 |         PDMPDRBK          |         PDMRLIOR          |
*     +---------------------------+---------------------------+
*  20 |         PDMWUIOR          |         PDMRKIOR          |
*     +---------------------------+---------------------------+
*  28 |         PDMFMIOR          |         PDMPLXPR          |
*     +---------------------------+---------------------------+
*  30 |         PDMRKRC           |///////////////////////////|
*     +---------------------------+---------------------------+
*  38 |         PDMRIOER          |         PDMUIOER          |
*     +---------------------------+---------------------------+
*  40 |                       PDMIDENT                        |
*     +-------------------------------------------------------+
*  48 |                       PDMPNAME                        |
*     +-------------------------------------------------------+
*  50 |                       PDMSTATE                        |
*     +-------------------------------------------------------+
*  58 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  70 |                       PDMSTAMP                        |
*     |                                                       |
*     +-------------------------------------------------------+
*  80 |                                                       |
*     =                       PDMRLCCW                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  C0 |                                                       |
*     =                       PDMWUCCW                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  F0 |                                                       |
*     =                       PDMRKCCW                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 110 |                                                       |
*     =                       PDMFMCCW                        =
*     |                                                       |
*     +---------------------------+---------------------------+
* 128 |         PDMCTRP           |         PDMCTRDS          |
*     +---------------------------+---------------------------+
* 130 |         PDMCTUP           |         PDMCTSTL          |
*     +---------------------------+---------------------------+
* 138 |                                                       |
*     =                       PDMOSINF                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 178 |                                                       |
*     =                       PDMIRBLK                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 1D8 |                                                       |
*     =                       PDMKEYSV                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 218
*
*** PDMBK - PDR Management Block
 
 
  PDMBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
PDMBKLEN       01D8 00000218
PDMBKSIZ       01D8 00000043
PDMCTRDS       012C
PDMCTRP        0128
PDMCTSTL       0134
PDMCTUP        0130
PDMFMCCW       0110
PDMFMIOR       0028
PDMIDENT       0040
PDMIRBLK       0178
PDMKEY         0040
PDMKEYSS       0040
PDMKEYSV       01D8
PDMOSINF       0138
PDMPDRBK       0018
PDMPDRLK       0000
PDMPLXPR       002C
PDMPNAME       0048
PDMRIOER       0038
PDMRKCCW       00F0
PDMRKIOR       0024
PDMRKRC        0030
PDMRLCCW       0080
PDMRLIOR       001C
PDMSTAMP       0070
PDMSTATE       0050
PDMUIOER       003C
PDMWUCCW       00C0
PDMWUIOR       0020
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:53:26 EDT.
Copyright IBM Corporation, 1990, 2022