NCL File Processing › Work with Files › Display File Information

Display File Information

The SHOW UDB command can be used to display details about files available to the system. This information includes details about the number of active users, space usage, and the status. In addition, any open error codes that caused a file to be disabled are displayed.

The SHOW VSAM command is used to display the VSAM attributes of the various VSAM data sets in use by your product. Information presented by this display includes:

• Record sizes
• Control Interval sizes
• Control Interval and Control Area split statistics
• Current index and data buffer allocations
• Information about string and buffer shortages
• LSR pool statistics (in z/OS systems)

The SHOW UDBUSER command is used to obtain information about current usage of particular UDBs in the system. The display lists all UDBs showing DD names, file IDs, and the names of the user IDs and NCL procedures that are currently accessing each UDB.

Note: For more information about the SHOW UDB, SHOW VSAM, and SHOW UDBUSER commands, see the online help.