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The format of a dataset entry in a DSN member (either IOADSN or IOADSNL) is as follows:
DATASET KEY,
SEQ=N,
DD=DDNAME,
DSN=DSNAME,
MEM=MEMBER[,]
CATALOG=YES|NO[,]
UNIT=unit-name[,]
VOL=volume serial number
RETRY=retry number
Table 15 Fields for the Format of a Dataset Entry in a DSN Member
Field |
Description |
|---|---|
KEY |
Name of the identifying key. Mandatory. |
SEQ |
Sequence number for concatenating libraries and members. To concatenate, specify the same DD statement name with a different sequence number. The concatenation is according to SEQ in ascending order. Optional. |
DD |
DD statement (typically the same as the name of the key). Mandatory. |
DSN |
DSN name. Optional. |
%variable%s can be specified. These variables are resolved at allocation time according to values in member DEFPARM in the PARM library. The user can change the values in DEFPARM, preferably using the INCONTROL Installation and Customization Engine (ICE). |
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MEM |
Member name. Optional. |
CATALOG |
Determines whether allocation is performed using the MVS catalog information, or from other sources. Valid values are: YES – Allocation is performed using the MVS catalog information. NO – Information is taken from the UNIT and VOL parameters when allocating the dataset. |
UNIT |
Unit name |
VOL |
Volume serial number |
RETRY |
Number of attempts that should be made to allocate the dataset when it is in use by another user. Retries occur at half-second intervals. Valid values are: 1-999. Default: 1 |
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