What is CATALOG,MASTER CATALOG and USER CATALOG

srinivas.u · New User Joined: 07 Jun 2004 Posts: 19

WHAT IS CATALOG,MASTER CATALOG AND USER CATALOG
PLZ COMPLETE DESCRIPTIONS

Ramya A · Active User Joined: 26 Jul 2004 Posts: 104

Hi,

As far as I know, Catalog contains the information (Record length, dataset type, directory blocks etc..) about the datasets.
Master catalog is the one that gives information about System datasets.
User catalog is the one that gives information about user created datasets.

Please let me know if there is any correction.

Regards,
Ramya

jyothi_priya · New User Joined: 09 Jan 2004 Posts: 10

Hi,

The master catalog contains data sets that do not have an alias defined and a user catalog contains data sets that are aliased from the master catalog.

The master catalog is where the system alias' are defined relating to the user catalogs. There can be only one master catalog and many user catalogs on the system.

Thanks & Regards,
Priya.

karthi_ind · Posted: Mon Aug 23, 2004 4:09 pm

hi

thr are two types of catalogs.

1) Master catalog 2) User catalog

An MVS system has only one master catalog. But many no. of user
catalogs.

Master catalog contains master datasets that is datasets used by OS.
User catalog contains user datasets that is infn abt vsam and non-vsam datasets.
bye

Karthi G.