What is new catalog delete in JCL?

What is new catalog delete in JCL?

1) DELETE – This means, delete the dataset and uncatalog the dataset as well. 2) KEEP – This means that do not delete the dataset, just retain it. 3) CATLG – This means that we should create an entry of the dataset in the Catalog. 4) UNCATLG – This means, we should not delete the dataset but we need to uncatalog it.

What is DISP =( MOD Delete Delete?

DISP=(MOD,DELETE,DELETE) means write to the end of an existing dataset and delete the dataset at the end the job step, regardless of whether the step abnormally terminated or not.

What is disp mod in JCL?

DISP = MOD is used to either extend an existing sequential dataset or to create a dataset if it does not exist. If the dataset exists, the records are appended to the dataset at the end of the existing dataset. If the volume parameter is used, the system terminates the job and does not create the new dataset.

What is disp pass in JCL?

DISP parameter describes the status of the dataset. It is used to describe the status of the dataset that is coded with the DD statement. If the system obtains unit and volume information for an OLD, MOD, or SHR status, the data set is treated as if it exists or not physically on the device.

What does DISP new Catlg delete means?

DISP=(NEW,CATLG,CATLG) should rarely be used. This tells the system to create a new dataset and catalog it even if the step abends. More often DISP=(NEW,CATLG,DELETE) will be used for new file creation. DISP=(OLD,DELETE,DELETE) is used for an existing file that is to be deleted regardless of the outcome of the step.

What is disp new Catlg Catlg?

If DISP=(NEW,CATLG,CATLG) is used, then a JCL change will be required at restart time. To avoid the JCL change, one of two techniques should be used: Use DISP=(MOD,CATLG,CATLG) on all runs. The DISP=MOD JCL parameter when used with QUICKSTART DOES NOT signify that datasets are added on to.

What is difference between old and mod in DISP in JCL?

OLD – gives you exclusive access, such that no other user can access the data set until you are finished using it. MOD – gives you exclusive access to add data to the end of a sequential data set. To add information to a member of a PDS, rewrite the member with the additional records added.

What is the difference between disp old and DISP SHR?

DISP=OLD denotes exclusive control of the dataset; DISP=SHR means there is no exclusivity.

What is the difference between specifying DISP old and DISP shr for a dataset?

When should DISP old be used?

DISP=OLD ==> Used for OLD datasets and it gives the exclusive access over that dataset. DISP=SHR ==> Used for OLD dataset where it gives a shared access. Genrally for input files it is used.