Page Data Set Data Section

Offsets Name Length Format Description
0 0 SMF75DSN 44 EBCDIC Page data set name.
44 2C SMF75PST 1 binary Page space type
Bit
Meaning when set
0
PLPA
1
COMMON
2
Reserved
3
LOCAL
4
Reserved
5
Data set unusable
6
Data set brought online during interval
7
Data set taken offline during interval.
45 2D SMF75FL2 1 binary Flags
Bit
Meaning when set
0
Data set accepts VIO pages
1
Data set is on a multiple exposure device
2
Data set is on a device with an alternate control unit
3
SMF75DEV contains a valid device name
4
Page space type is SCM
5-7
Reserved.
46 2E   1   Reserved.
47 2F SMF75TYP 4 binary Unit type.
51 33 SMF75CHA 2 binary Device number in the form hhhh (hex digits).
53 35 SMF75VOL 6 EBCDIC Volume serial number.
59 3B   5   Reserved.
64 40 SMF75SLA 4 binary Total number of slots contained within the page data set.
68 44 SMF75MXU 4 binary Maximum number of slots used.
72 48 SMF75MNU 4 binary Minimum number of slots used.
76 4C SMF75AVU 4 binary Average number of slots used.
80 50 SMF75BDS 4 binary Number of unusable slots.
84 54 SMF75USE 4 binary Number of samples indicating data set was being used by ASM.
88 5A SMF75REQ 4 binary The value is the same as SMF75USE.
92 5C SMF75SIO 4 binary Number of I/O requests for the data set.
96 60 SMF75PGX 4 binary Number of pages transferred to or from page data set.
100 64 SMF75DEV 8 EBCDIC Device name (blank if device name cannot be determined).
108 6C SMF75CU 8 EBCDIC Control unit name (blank if control unit name cannot be determined).
Start of change116End of change Start of change74End of change Start of changeSMF75LVUEnd of change Start of change8End of change Start of changefloatingEnd of change Start of changeAverage number of slots used. Same as SMF75AVU, but long floating point format. End of change