Single Track Table Space Utilization Section

Offsets Name Length Format Description
0 0 R84STDSN 2 binary Data set number.
2 2   2   Reserved.
4 4 R84STDDN 8 EBCDIC Data definition name (DDNAME).
12 C R84STLWA 4 binary Low address.
12 C R84STLWC 2 binary Low cylinder, lower portion.
14 E R84STLWH 2 binary Low head and low cylinder, upper portion.
16 10 R84STHIA 4 binary High address.
16 10 R84STHIC 2 binary High cylinder, lower portion.
18 12 R84STHIH 2 binary High head and high cylinder, upper portion.
20 14 R84STDEF 4 binary Number of records defined.
24 18 R84STALO 4 binary Number of records allocated.
28 1C R84STFLG 1   Single track table flag
Value
Meaning when set
X'80'
Expansion indicator for any or all subsequent STT entries that match data set number.
29 1D   3   Reserved.