Allocate panel

You use the Allocation panel to select the data set organization type for a new data set. Z Data Tools displays this panel whenever you specify an output data set that does not exist, for example, as part of the Data Create or Copy process.

Panel and field definitions

Figure 1. Allocation panel
  Process   Options   Help
 ──────────────────────────────────────────────────────────────────────────────
 Allocate /u/testonly/xxx.txt

 New Data Set Organization:
    Select option         Instructions
      1. KSDS             The above data set does not exist.
      2. ESDS             To define or allocate a new data set select a data
      3. RRDS             set organization and press ENTER or press PF3/EXIT
      4. VRRDS            or PF12/CANCEL to return without allocation.
      5. LDS
      6. Non VSAM
      7. IAM KSDS         For a new data set, enter a data set name
      8. IAM ESDS         below to copy existing allocation attributes.
      9. HFS

 Existing Data Set:
    Like data set . . . . .                                               
    Volume serial . . . . .       


 Command ===>                                                                  
  F1=Help      F2=Split     F3=Exit      F4=CRetriev  F7=Backward  F8=Forward
  F9=Swap     F10=Actions  F12=Cancel                                           
Allocate
Lists the new data set name that you are allocating.
New Data Set Organization
Option to select the data set organization type. Choose from:
1. KSDS
Key-sequenced data set. A type of VSAM data set that contains records in ascending collating sequence, and can be accessed by a field, called a key, or by a relative byte address.
2. ESDS
Entry-sequenced data set. A type of VSAM data set that contains records in the order in which they were entered. Records are added to the end of the data set, and can be accessed.
3. RRDS
Relative record data set. A type of VSAM data set that contains records in order by relative record number, and can be accessed only by this number. There are two types of RRDS: fixed-length and variable length. In this panel, the term RRDS refers specifically to the fixed-length type. However, in other situations where the types do not need to be differentiated, the term RRDS may be used for both types.
4. VRRDS
Variable length relative record data set. A type of VSAM data set that contains records in order by relative record number, and can be accessed only by this number. There are two types of RRDS: fixed-length and variable length. Within Z Data Tools, the term VRRDS refers specifically to the variable-length type.
5. LDS
Linear data set. A type of VSAM data set that contains data that has no record boundaries. Linear data sets contain none of the control information that other VSAM data sets do and must be cataloged.
6. Non-VSAM
Allows you to specify a sequential or partitioned data set, using either an existing data set as a model, SMS class names and disk space requirements, or the system defaults.
7. IAM KSDS
Indexed Access Method - Key Sequence. A non-IBM data set type.
8. IAM ESDS
Indexed Access Method - Entry Sequence. A non-IBM data set type.
9. HFS
Hierarchical File System file. A non-z/OS file, processed in Z Data Tools as a simulated QSAM/BSAM data set.
Note: Z Data Tools only displays this option when you have specified an HFS path name (that is, a name starting with a "/") in the Data set/path name field of the preceding panel.
Like data set
The name of an existing sequential or partitioned data set to be used as a model.

If you specify a mask in this field, Z Data Tools displays the Model Data Set Selection panel listing the data sets matching the mask from which you can select the model data set.

The attributes of this data set are copied to the second allocation panel as the default values for your new data set.

Volume serial
The volume serial of an existing non-cataloged sequential or partitioned data set to be used as a model when option 6. Non-VSAM has been selected.

You can only specify a volume serial if you have also specified a model data set (or mask) in the Like data set field.

Equivalent functions

  • None.

Related tasks and examples

Allocating a new data set