Data Set Extents (option 5.6)
Use this option to display the begin and end of the extents of a data set.
The display panel shows absolute disk extents and disk extents relative to the beginning of the data set. You can use this information for all disk functions which prompt you for the location of a disk extent.
For multivolume data sets only the extents on the selected volume are shown.
Figure 1 shows an example of DSX output.
Figure 1. Data set extents display
Process Options Help ──────────────────────────────────────────────────────────────────────────────── File Manager Data Set Extents Input: ┌──────────────────────────── File Manager Messages ──────────────────────────┐ │ │ │ VOLSER: MVS4W4 Data Set Name: FMNUSER.FMOS390.QSAM │ │ │ │ Absolute and relative extent limits within data set: │ │ │ │ Begin - ABSOLUTE - End Begin - RELATIVE - End │ │ Ext Tracks Cyl-hd Rnnnnn Cyl-hd Rnnnnn Cyl-hd Rnnnnn Cyl-hd Rnnnnn │ │ 0 1 69 0 1035 69 0 1035 0 0 0 0 0 0 │ │ 1 1 69 1 1036 69 1 1036 0 1 1 0 1 1 │ │ 2 1 69 2 1037 69 2 1037 0 2 2 0 2 2 │ │ 3 1 69 13 1048 69 13 1048 0 3 3 0 3 3 │ │ 4 1 70 4 1054 70 4 1054 0 4 4 0 4 4 │ ┌───────────────────────────────────────────────────────────┐ │ │ Press the CANCEL or EXIT key to remove the message Pop-Up │ 6 │ └───────────────────────────────────────────────────────────┘ │ │ Command ===> ───────────────────────────────────────────────── Scroll PAGE_ ┘ │ F1=Help F2=Split F3=Exit F4=CRetriev F7=Backward │ │ F8=Forward F9=Swap F10=Actions F12=Cancel │ └─────────────────────────────────────────────────────────────────────────────┘ Command ===> _____________________________________________________ F1=Help F2=Split F3=Exit F4=CRetriev F7=Backward F8=Forward F9=Swap F10=Actions F12=Cancel