XSTMG Back to Index page
 
Prolog 
Control Block Contents 
   XSTMG 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.


  XSTMG Prolog Top of page
 
 NAME       : HCPXSTMG
 DESCRIPTION: Expanded storage management data
 DSECT      : XSTMG
 FUNCTION   : This block is used to keep track of global
              Information associated with the expanded
              Storage facility and block paging.
 LOCATED BY : This DSECT overlays the data Entry Point
              HCPPGDXT.
 CREATED BY : HCPPGD is loaded by the system during IPL.
              The XSTMG is initialized by HCPESCDI.
 DELETED BY : never deleted.
 RELOCATION CONSIDERATIONS : None
 
 
  XSTMG Control Block Content Top of page
 

 XSTMG DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure XSTMG Expanded storage management data 0000 0 Signed 4 XSTMGSTR (0) Start of XSTMG block 0000 0 Signed 4 XSTFLAGS (0) Flags for the XSTMG block. Updated with compare and swap. 0000 0 Address 1 XSTSTAFG Status information flag .... ...1 XSTNCONF X'01' XSTNCONF Xstore is not configured to the system. .... ...1 XSTOFFLN X'01' XSTOFFLN Xstore was taken offline because all blocks are in error. .... ..1. XSTMPDSB X'02' XSTMPDSB Xstore has been disabled for CP paging temporarily until at least one increment can be brought online during initilization or recovery from a machine check. This bit has no meaning if XSTOFFLN is on. .... .1.. XSTNAVAL X'04' XSTNAVAL Indicates that there is no XSTORE available for allocation. This may happen if all XSTORE has been attached to a guest or the CP partition has been completely allocated. .... 1... XSTMDALL X'08' XSTMDALL Indicates that there is no XSTORE available for paging allocation. The Xstore is to be used only for allocation to Minidisk Cache. ...1 .... XSTEXTMP X'10' XSTEXTMP If on, indicates that Read Expanded Storage Usability Bit Map Extended is installed. If off, nothing is implied about the existence of other usability map facilities. .1.. .... XSTRREQD X'40' XSTRREQD Usability-map repair is required. When this bit is on, work has been stacked to perform the repair action. This bit has no meaning if XSTOFFLN is on. The following are the flags that indicate status. 0001 1 Bitstring 1 XSTFUTCT Count of stamps with future times 0002 2 Signed 2 XSTAVGAG Average age of paging XBLKs 0004 4 Signed 4 XSTSTATL XSTORE statistics lock used to serialize updates to : XSTCTXTS, XSTEPOCH, PGMXSTCT, ASCCTXBK, ASCCTXRD, and ASCCTXWT. 0008 8 Signed 4 XSTCTXTS Count of XSTORE blocks currently in use for CP Paging. Used by MIG to calculate average timestamp. Serialized by XSTSTATL. 000C 12 Signed 4 XSTCTXER Number of blocks in error that have not yet been reflected to a guest. Update holding XSTBUFLK. 0010 16 Signed 4 XSTOTALB Amount of XSTORE online in blocks. It represents the number of blocks in "configured" increments. Set at initialization and not changed. 0014 20 Signed 4 XSTGUEST Number of blocks attached to virtual machines including error blocks. To update hold HCPPGDXL. 0018 24 Signed 4 XSTINCRB Number of blocks per XDRBK. 001C 28 Signed 4 XSTCPINC Amount of xstore in blocks that are in the "CP" state and are "Configured". It includes error blocks but excludes CP-Retained blocks. To update hold HCPPGDXL. 0020 32 Signed 4 XSTCPSTR Total number of blocks that are in the cp-retained state including blocks in error. To update hold HCPPGDXL. 0024 36 Signed 4 XSTPEDRT Amount of xstore in blocks that is waiting to be assigned the retained state. This is pending retain. The sum of XSTCPSTR and XSTPEDRT is the amount specified on the last RETAIM XSTORE command. To update hold HCPPGDXL. 0028 40 Signed 4 XSTMSKIP XBLKs skipped by migrator because they were too young 002C 44 Signed 4 XSTALLMB Sum of BLKDM+BLKCY+BLKSH+BLKSY Used in timestamp adjustment The following area is used by XSTORE migration 0030 48 Signed 4 * (0) Migration lock and flag word 0030 48 Bitstring 1 XSTMIGLK TS lock byte for migration 0031 49 Bitstring 1 XSTMIFLG Migration flag byte 1... .... XSTMISLP X'80' XSTMISLP Migration is awaiting redrive .1.. .... XSTNORML X'40' XSTNORML Normal migration in progress ..1. .... XSTFLUSH X'20' XSTFLUSH Flush is in progress ...1 .... XSTPTIL X'10' XSTPTIL The PTIL lock and the owned ASCBK queue lock (VMDASCLK) are held for the current VMDBK .... 1... XSTDCSS X'08' XSTDCSS DCSS scan is in progress .... .1.. XSTNSS X'04' XSTNSS NSS scan is in progress .... 11.. XSTSHARE XSTNSS+XSTDCSS XSTSHARE NSS or DCSS scan is in progress .... ..1. XSTRESUM X'02' XSTRESUM Migration is restarting after loss of control .... ...1 XSTSHAS X'01' XSTSHAS Shared address space scan is in progress .... 11.1 XSTNOCYC XSTNSS+XSTDCSS+XSTSHAS XSTNOCYC A non-cyclic list (NSS, DCSS, or SHAS) scan is in progress. The following represent bit settings for XSTMIFLG 0032 50 Signed 2 XSTBMULT Used to control number of migrate buffers obtained at migration invocation. (XSTBMULT*paging vols) 0000000F XSTMMAX 15 Highest allowed value for XSBMULT 00000005 XSTMMIN 5 Lowest value allowed for XSTBMULT 0034 52 Address 4 XSTCYCLE The VMDBK address of a user in the Cyclic List that will be the next target of migration. 0038 56 Signed 4 XSTNUMAQ Number on the migrate frame queue ...1 .... XSTMIBLF 16 XSTMIBLF Migrate blocking factor - the minimum desirable XSTNUMAQ value to give decent DASD blocking 003C 60 Signed 4 XSTGTARGT Target time (in seconds) 0040 64 Signed 4 XSTGTGTIM Time of this migration scan. Used in migrate timestamp comparisons to accomodate 20-bit PTE xstore timestamp precision. Set whenever XSTGTARGT is modified. 0044 68 Signed 4 XSTGSTIME Migrate/steal timer (in seconds) 0048 72 Signed 4 XSTADJTG When XSTMSKIP hits this value its time to adjust the target age 004C 76 Signed 4 XSTMAXCT Num of times target time lowered 0050 80 Bitstring 1 XSTMIFRM Frame code to use on migrator buffer frames. 0051 81 Bitstring 1 XSTMIFL2 Second migration flag byte The following represent bit settings for XSTMIFL2 1... .... XSTMINTG X'80' Emergency scan with lowest tgt .1.. .... XSTCYEND X'40' Branched to FLSHDONE from CYCLEND ..1. .... XSTCKGAL X'20' Branched to FLSHDONE from CHKCTGAL ...1 .... XSTFNDDS X'10' Indicate that we noticed a user whose address space(s) were being destroyed while we were attempting to flush XSTORE. .... 1... XSTUSE8K X'08' Using (or waiting for) an 8K buffer. This bit is only set when an 8K buffer is required. If it is ON when buffers are being returned after I/O, it means migration should only restart when 8K buffers are available. .... .1.. XSTNDONE X'04' Normal migration has completed early without reaching the high threshold due to the average age of blocks in expanded storage becoming too low. If flush is active, migration will continue. 0052 82 Signed 2 XSTMINAG Minimum age to allow migration 0054 84 Signed 4 XSTITIME TOD of first steal or tmr wrap 0058 88 Signed 8 XSTSUMAG Sum of ages of migrated blocks 0060 96 Signed 4 XSTUSRDM Number of dormant guest owned address spaces that were the target of migration 0064 100 Signed 4 XSTUSRCY Number of non-dormant guest owned address spaces that were the target of migration 0068 104 Signed 4 XSTUSRSH Number of Named Saved Systems and Saved Segments (DCSSs and Segment Spaces) that were the target of migration 006C 108 Signed 4 XSTCTGAL Count of blocks to flush from the users partition being assigned to the virtual machine given by XSTATVMD. To update hold XSTBUFLK. 0070 112 Signed 4 XSTBLKDM Number of blocks migrated from a dormant guest 0074 116 Signed 4 XSTBLKCY Number of blocks migrated from a non-dormant guest 0078 120 Signed 4 XSTBLKSH Number of blocks migrated from a shared system 007C 124 Signed 4 XSTBLKSY Number of blocks migrated from the CP system 0080 128 Signed 4 XSTQUEND Anchor of current SNT queue 0084 132 Signed 4 XSTMISAQ Number of frames missing (taken) from migration frame queue without being replenished 0088 136 Signed 4 XSTMIFRS Total number of migration buffer frames, including both available (on XSTFRMAQG) and in use frames. 008C 140 Signed 4 XSTMIGS Count of migrate invocations 0090 144 Signed 4 XSTCTPGM Count of PGMBKS selected 0094 148 Signed 4 * Reserved for IBM use 0098 152 Signed 4 XSTLOTHR Low threshold for migration 009C 156 Signed 4 XSTHITHR High threshold for migration 00A0 160 Signed 4 XSTRSTLO XSTLOTHR is raised if XSTLOH20 is smaller than RSTLO at end of mig 00A4 164 Signed 4 XSTRLOCT Number of times buffer increased 00A8 168 Signed 4 XSTRSTHI XSTLOTHR is lowered if XSTLOH20 is larger 3 times in a row at mig end 00AC 172 Signed 4 XSTRHICT Number of times buffer decreased 00B0 176 Signed 4 XSTHICNT Number of times XSTLOH20 was larger than XSTRSTHI 00B4 180 Signed 4 XSTLOH2O Minimum number of XSTORE blocks available during this migration 00B8 184 Signed 4 XSTSKIPA The number of XBLKs we are willing to skip before resetting target 00BC 188 Address 4 XSTCURAS Current (or last) ASCBK being migrated from 00C0 192 Address 4 XSTCURVM Current (or last) VMDBK being migrated from; contains current SNTBK address if XSTNSS or XSTDCSS flag set in XSTMIFLG 00C4 196 Signed 4 XSTSEGCT Count of STLBK SEGTEs processed 00C8 200 Signed 4 XSTDDSAV Save area for XSFDD's R13 while migrator runs. 00CC 204 Signed 4 XSTMDCSA Save area for MDC flush 00D0 208 Signed 4 * Reserved 00D4 212 Address 4 XSTLSTSG Migratee's final segment 00D8 216 Address 4 XSTDFRAS ASCBK of deferred address space 00DC 220 Bitstring 4 * reserved 00E0 224 Signed 4 XSTNOIO No IO was required for migration 00E4 228 Signed 4 XSTCYCLS Number of times through cyclic 00E8 232 Signed 4 XSTFLCYC Number of cycles while flushing 00EC 236 Signed 4 XSTMRABI Count of pages that were read in as part of a block but not used (as seen by migrate) 00F0 240 Signed 4 XSTSRABI Count of pages that were read in as part of a block but not used (as seen by steal) 00F4 244 Signed 4 XSTSRGCT Single reads for guests 00F8 248 Signed 4 XSTSRSCT Single reads for system 00FC 252 Signed 4 XSTBPRCT Blocks of pages read 0100 256 Address 4 XSTATVMD Address of the VMDBK having XSTORE attached. This is the base VMDBK for the primary configuration for this virtual machine (VMDORIG). to update hold XSTBUFLK and hcppgdxl. 0104 260 Signed 4 XSTATLOW Lowest block number associated with the partition being attached to the virtual machine given in xstatvmd. To update hold xstbuflk and HCPPGDXL. 0108 264 Signed 4 XSTATHI Highest block number associated with the partition being attached to the virtual machine given in XSTATVMD. To update hold XSTBUFLK and HCPPGDXL. 010C 268 Signed 4 XSTATSIZ Amount of configured expanded storage being attached to the virtual machine given in XSTATVMD. To update hold XSTBUFLK and HCPPGDXL. The following area is used for XSTORE block allocation 0110 272 Signed 4 XSTXBZIP Times no XSTORE was available 0114 276 Signed 4 XSTXBGET Number of XSTORE allocations 0118 280 Signed 4 XSTXBREL Number of XSTORE releases 011C 284 Signed 4 XSTMAXK Highest XSTORE increment number 0120 288 Signed 4 XSTINCRM Highest supported hardware increment number after capping 0124 292 Signed 4 * Reserved for IBM use 0128 296 Signed 4 XSTCPPAR Number of blocks in CP partition available for allocation. This is the total number of blocks in the CP and CP-Retained states excluding those in error. To update hold HCPPGDXL. 012C 300 Signed 4 XSTCTXAV Count of available blocks in the CP partition. To update hold XSTBUFLK. 00000130 XSTMGMSZ *-XSTMGSTR Size of monitored portion of XSTMG 0130 304 Signed 4 XSTDIRAN Anchor to the XSTORE directory 0134 308 Signed 4 XSTALCR Allocation cursor: points to the directory entry (XDRBK) where the the last block was allocated. Notes : These fields pertain to the 8K buffers required to migrate a pageable PGMBK (PTRM). The fields with 4K buffer counterparts are: XSTPGMAQG (like XSTFRMAQG) = Addr of Available Buffers XSTPGMNQ (like XSTNUMAQ) = Number of Available Buffers XSTPGMCT (like XSTMIFRS) = Total Allocated Buffers XSTPGMRL (like XSTMISAQ) = Number of Missing Buffers XSTPGMWRG (like XSTFROUTG) = Address of Buffers to Write 0138 312 Address 8 XSTPGMAQG Available queue of 8K buffers to be used for pageable PGMBKs. To update hold XSTMIGLK. 0140 320 Signed 4 XSTPGMNQ Number of 8K buffers available, or in use. To update hold XSTMIGLK. 0144 324 Signed 4 XSTPGMCT Total number of 8K buffers that have been allocated. To update hold XSTMIGLK. 0148 328 Signed 4 XSTPGMRL Number of 8K buffers released to the address space owner to support frames that could not be moved to XSTORE or DASD. 014C 332 Signed 4 * Reserved for IBM use 0150 336 Address 8 XSTPGMWRG Queue of 8K buffers waiting to be written to DASD. To update hold XSTMIGLK. 0158 344 Address 4 XSTITRBK Pointer to an ITRBK for migration 015C 348 Signed 4 * Reserved for IBM use 0160 352 Address 8 XSTNXTVP Next virtual page address to scan when XSTORE migration is interrupted. 0168 360 Address 8 XSTFROUTG Queue of FRMTEs to be written 0170 368 Address 8 XSTFRMAQG Migration FRMTE queue (buffers) 0178 376 Bitstring 1 XSTBUFLK TS lock for BAT buffer 0179 377 Bitstring 1 * RESERVED FOR IBM USE 017A 378 Signed 2 XSTBUFH4 Table entry index size 017C 380 Address 4 XSTBUFHI End of the BAT buffer 0180 384 Address 4 XSTBUFIX Next entry to take in BAT buffer 0184 388 Address 4 XSTBUFLO Addr of start of buffer 0188 392 Signed 4 XSTBUFER (500) The BAT buffer 00000958 XSTBUFND * Addr of last entry in the BAT buffer
 
 
  XSTMG Storage Layout Top of page
 
          
*** XSTMG - Expanded storage management data
*
*     +------+------+-------------+---------------------------+
*   0 |:STAFG|:FUTCT|  XSTAVGAG   |         XSTSTATL          |
*     +------+------+-------------+---------------------------+
*   8 |         XSTCTXTS          |         XSTCTXER          |
*     +---------------------------+---------------------------+
*  10 |         XSTOTALB          |         XSTGUEST          |
*     +---------------------------+---------------------------+
*  18 |         XSTINCRB          |         XSTCPINC          |
*     +---------------------------+---------------------------+
*  20 |         XSTCPSTR          |         XSTPEDRT          |
*     +---------------------------+---------------------------+
*  28 |         XSTMSKIP          |         XSTALLMB          |
*     +------+------+-------------+---------------------------+
*  30 |:MIGLK|:MIFLG|  XSTBMULT   |         XSTCYCLE          |
*     +------+------+-------------+---------------------------+
*  38 |         XSTNUMAQ          |        XSTGTARGT          |
*     +---------------------------+---------------------------+
*  40 |        XSTGTGTIM          |        XSTGSTIME          |
*     +---------------------------+---------------------------+
*  48 |         XSTADJTG          |         XSTMAXCT          |
*     +------+------+-------------+---------------------------+
*  50 |:MIFRM|:MIFL2|  XSTMINAG   |         XSTITIME          |
*     +------+------+-------------+---------------------------+
*  58 |                       XSTSUMAG                        |
*     +---------------------------+---------------------------+
*  60 |         XSTUSRDM          |         XSTUSRCY          |
*     +---------------------------+---------------------------+
*  68 |         XSTUSRSH          |         XSTCTGAL          |
*     +---------------------------+---------------------------+
*  70 |         XSTBLKDM          |         XSTBLKCY          |
*     +---------------------------+---------------------------+
*  78 |         XSTBLKSH          |         XSTBLKSY          |
*     +---------------------------+---------------------------+
*  80 |         XSTQUEND          |         XSTMISAQ          |
*     +---------------------------+---------------------------+
*  88 |         XSTMIFRS          |         XSTMIGS           |
*     +---------------------------+---------------------------+
*  90 |         XSTCTPGM          |///////////////////////////|
*     +---------------------------+---------------------------+
*  98 |         XSTLOTHR          |         XSTHITHR          |
*     +---------------------------+---------------------------+
*  A0 |         XSTRSTLO          |         XSTRLOCT          |
*     +---------------------------+---------------------------+
*  A8 |         XSTRSTHI          |         XSTRHICT          |
*     +---------------------------+---------------------------+
*  B0 |         XSTHICNT          |         XSTLOH2O          |
*     +---------------------------+---------------------------+
*  B8 |         XSTSKIPA          |         XSTCURAS          |
*     +---------------------------+---------------------------+
*  C0 |         XSTCURVM          |         XSTSEGCT          |
*     +---------------------------+---------------------------+
*  C8 |         XSTDDSAV          |         XSTMDCSA          |
*     +---------------------------+---------------------------+
*  D0 |///////////////////////////|         XSTLSTSG          |
*     +---------------------------+---------------------------+
*  D8 |         XSTDFRAS          |///////////////////////////|
*     +---------------------------+---------------------------+
*  E0 |         XSTNOIO           |         XSTCYCLS          |
*     +---------------------------+---------------------------+
*  E8 |         XSTFLCYC          |         XSTMRABI          |
*     +---------------------------+---------------------------+
*  F0 |         XSTSRABI          |         XSTSRGCT          |
*     +---------------------------+---------------------------+
*  F8 |         XSTSRSCT          |         XSTBPRCT          |
*     +---------------------------+---------------------------+
* 100 |         XSTATVMD          |         XSTATLOW          |
*     +---------------------------+---------------------------+
* 108 |         XSTATHI           |         XSTATSIZ          |
*     +---------------------------+---------------------------+
* 110 |         XSTXBZIP          |         XSTXBGET          |
*     +---------------------------+---------------------------+
* 118 |         XSTXBREL          |         XSTMAXK           |
*     +---------------------------+---------------------------+
* 120 |         XSTINCRM          |///////////////////////////|
*     +---------------------------+---------------------------+
* 128 |         XSTCPPAR          |         XSTCTXAV          |
*     +---------------------------+---------------------------+
* 130 |         XSTDIRAN          |         XSTALCR           |
*     +---------------------------+---------------------------+
* 138 |                      XSTPGMAQG                        |
*     +---------------------------+---------------------------+
* 140 |         XSTPGMNQ          |         XSTPGMCT          |
*     +---------------------------+---------------------------+
* 148 |         XSTPGMRL          |///////////////////////////|
*     +---------------------------+---------------------------+
* 150 |                      XSTPGMWRG                        |
*     +---------------------------+---------------------------+
* 158 |         XSTITRBK          |///////////////////////////|
*     +---------------------------+---------------------------+
* 160 |                       XSTNXTVP                        |
*     +-------------------------------------------------------+
* 168 |                      XSTFROUTG                        |
*     +-------------------------------------------------------+
* 170 |                      XSTFRMAQG                        |
*     +------+------+-------------+---------------------------+
* 178 |:BUFLK|//////|  XSTBUFH4   |         XSTBUFHI          |
*     +------+------+-------------+---------------------------+
* 180 |         XSTBUFIX          |         XSTBUFLO          |
*     +---------------------------+---------------------------+
* 188 |                                                       |
*     =                       XSTBUFER                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 958
*
*** XSTMG - Expanded storage management data
 
 
  XSTMG Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
XSTADJTG       0048
XSTALCR        0134
XSTALLMB       002C
XSTATHI        0108
XSTATLOW       0104
XSTATSIZ       010C
XSTATVMD       0100
XSTAVGAG       0002
XSTBLKCY       0074
XSTBLKDM       0070
XSTBLKSH       0078
XSTBLKSY       007C
XSTBMULT       0032
XSTBPRCT       00FC
XSTBUFER       0188
XSTBUFHI       017C
XSTBUFH4       017A
XSTBUFIX       0180
XSTBUFLK       0178
XSTBUFLO       0184
XSTBUFND       0188 00000958
XSTCKGAL       0051 20
XSTCPINC       001C
XSTCPPAR       0128
XSTCPSTR       0020
XSTCTGAL       006C
XSTCTPGM       0090
XSTCTXAV       012C
XSTCTXER       000C
XSTCTXTS       0008
XSTCURAS       00BC
XSTCURVM       00C0
XSTCYCLE       0034
XSTCYCLS       00E4
XSTCYEND       0051 40
XSTDCSS        0031 08
XSTDDSAV       00C8
XSTDFRAS       00D8
XSTDIRAN       0130
XSTEXTMP       0000 10
XSTFLAGS       0000
XSTFLCYC       00E8
XSTFLUSH       0031 20
XSTFNDDS       0051 10
XSTFRMAQG      0170
XSTFROUTG      0168
XSTFUTCT       0001
XSTGSTIME      0044
XSTGTARGT      003C
XSTGTGTIM      0040
XSTGUEST       0014
XSTHICNT       00B0
XSTHITHR       009C
XSTINCRB       0018
XSTINCRM       0120
XSTITIME       0054
XSTITRBK       0158
XSTLOH2O       00B4
XSTLOTHR       0098
XSTLSTSG       00D4
XSTMAXCT       004C
XSTMAXK        011C
XSTMDALL       0000 08
XSTMDCSA       00CC
XSTMGMSZ       012C 00000130
XSTMGSTR       0000
XSTMIBLF       0038 10
XSTMIFLG       0031
XSTMIFL2       0051
XSTMIFRM       0050
XSTMIFRS       0088
XSTMIGLK       0030
XSTMIGS        008C
XSTMINAG       0052
XSTMINTG       0051 80
XSTMISAQ       0084
XSTMISLP       0031 80
XSTMMAX        0032 0000000F
XSTMMIN        0032 00000005
XSTMPDSB       0000 02
XSTMRABI       00EC
XSTMSKIP       0028
XSTNAVAL       0000 04
XSTNCONF       0000 01
XSTNDONE       0051 04
XSTNOCYC       0031 0D
XSTNOIO        00E0
XSTNORML       0031 40
XSTNSS         0031 04
XSTNUMAQ       0038
XSTNXTVP       0160
XSTOFFLN       0000 01
XSTOTALB       0010
XSTPEDRT       0024
XSTPGMAQG      0138
XSTPGMCT       0144
XSTPGMNQ       0140
XSTPGMRL       0148
XSTPGMWRG      0150
XSTPTIL        0031 10
XSTQUEND       0080
XSTRESUM       0031 02
XSTRHICT       00AC
XSTRLOCT       00A4
XSTRREQD       0000 40
XSTRSTHI       00A8
XSTRSTLO       00A0
XSTSEGCT       00C4
XSTSHARE       0031 0C
XSTSHAS        0031 01
XSTSKIPA       00B8
XSTSRABI       00F0
XSTSRGCT       00F4
XSTSRSCT       00F8
XSTSTAFG       0000
XSTSTATL       0004
XSTSUMAG       0058
XSTUSE8K       0051 08
XSTUSRCY       0064
XSTUSRDM       0060
XSTUSRSH       0068
XSTXBGET       0114
XSTXBREL       0118
XSTXBZIP       0110
 
This information is based on z/VM 7.1.0 Last updated on 22 Jun 2018 at 11:54:12 EDT.
Copyright IBM Corporation, 1990, 2018