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Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRSYTSHS
PrologControl Block Contents
Storage Layout
Cross Reference
MRSYTSHS Prolog
DSECT NAME - SYTSHS
FUNCTION - Map a Monitor record.
LOCATED BY -
Through the Monitor Control Area
REFERENCED CONTROL BLOCKS -
MRRECHDR Monitor Record Header
NAME - MRSYTSHS
DESCRIPTIVE NAME - Monitor Sample Record
Domain 0 - System Domain
Record 7 - Shared Storage Data
DESCRIPTION - Named Saved System(NSS), Discontiguous saved
segment(DCSS) and Shared Address Spaces
management.
Virtual disk in storage information is also
included in this record since the disk is
supported by storage, not DASD.
MRSYTSHS Control Block Contents
Offsets
Dec Hex Type Len Name (Dim) Description
0 0 Structure 68 SYTSHS Start of monitor record
0 0 Character 0 SYTSHS_MRHDR Record header. See MRRECHDR for
details.
0 0 Character 20 MRHDR
0 0 Unsigned 2 MRHDRLEN record length in bytes
2 2 Unsigned 2 MRHDRZER field of zeros
4 4 Unsigned 1 MRHDRDM domain identifier
5 5 Unsigned 1 *
6 6 Unsigned 2 MRHDRRC record identifier
8 8 Character 8 MRHDRTOD Time at which this record was
built. In time-of-day (TOD) clock
format. See IBM System 370 XA
Principle of Operation for
explanation of format.
16 10 Character 4 *
20 14 Character 0 MRHDR_END End of header
20 14 Unsigned 4 SYTSHS_SYSTANSS Cardinal count of NSSs which are
currently active.
24 18 Unsigned 4 SYTSHS_SYSTADCS Cardinal count of DCSSs which
are currently active.
28 1C Unsigned 4 SYTSHS_RSASHARE Cardinal count of resident
shared frames.
32 20 Unsigned 4 SYTSHS_CALNUMSA Cardinal count of shared address
spaces defined.
36 24 Unsigned 4 SYTSHS_RSACTSHR Cardinal number of resident
frames for shared address spaces.
40 28 Unsigned 4 SYTSHS_VMDSFORO Cardinal count of times the
System shared frame-owned list was
reordered.
44 2C Unsigned 4 SYTSHS_VMDSFORE Cardinal count of referenced
frames resident when the System
shared frame-owned list was reset.
48 30 Unsigned 4 SYTSHS_QDGSYSLM Limit of total allocation of
virtual disks in storage for all
users on the system. Units are
512-byte blocks. (See Q VDISK
SYSLIM command). A value of -1
indicates that there is no limit.
52 34 Unsigned 4 SYTSHS_QDGUSRLM Limit of total allocation of
virtual disks in storage for any
single user on the system. Units
are 512-byte blocks. (See Q VDISK
USERLIM command). A value of -1
indicates that there is no limit.
56 38 Unsigned 4 SYTSHS_QDGSYSCA Total number of currently
allocated blocks for virtual disks
in storage.
60 3C Unsigned 4 SYTSHS_QDGLKCNT Total number of LINKS to all
virtual disks in storage. This
includes 1 for each virtual disk
in storage created with the define
command.
64 40 Unsigned 4 SYTSHS_QDGDISKS Count of active virtual disks in
storage. "Active" being a disk
that is currently linked by at
least one user.
68 44 Character 0 SYTSHS_END
MRSYTSHS Cross Reference
Hex Hex
Name Offset Length Value
MRHDR 0 20
MRHDR_END 14 0
MRHDRDM 4 1
MRHDRLEN 0 2
MRHDRRC 6 2
MRHDRTOD 8 8
MRHDRZER 2 2
SYTSHS 0 68
SYTSHS_CALNUMSA 20 4
SYTSHS_END 44 0
SYTSHS_MRHDR 0 0
SYTSHS_QDGDISKS 40 4
SYTSHS_QDGLKCNT 3C 4
SYTSHS_QDGSYSCA 38 4
SYTSHS_QDGSYSLM 30 4
SYTSHS_QDGUSRLM 34 4
SYTSHS_RSACTSHR 24 4
SYTSHS_RSASHARE 1C 4
SYTSHS_SYSTADCS 18 4
SYTSHS_SYSTANSS 14 4
SYTSHS_VMDSFORE 2C 4
SYTSHS_VMDSFORO 28 4
This information is
based on z/VM V4R3.0.
Last updated on 1 May 2002 at 16:20:33.
Copyright IBM Corporation, 1990, 2002