Browse Prior Art Database

Method and System for Storing Diagnostic Data in a Metadata Sub Cell

IP.com Disclosure Number: IPCOM000222181D
Publication Date: 2012-Sep-24
Document File: 1 page(s) / 16K

Publishing Venue

The IP.com Prior Art Database

Abstract

A method and system is disclosed for storing diagnostic data which can be shared among a plurality of systems. The method and system involves creation of a metadata sub cell within the catalog wherein the diagnostic data is stored and is tied to other metadata associated with a data set.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 76% of the total text.

Page 01 of 1

Method and System for Storing Diagnostic Data in a Metadata Sub Cell

Disclosed is a method and system for storing diagnostic data which can be shared among a plurality of systems. The diagnostic data may be stored in a location such as, but not limited to, a catalog. The diagnostic data may be, but not limited to, information used to diagnose problems that may currently be unavailable, historical data that is useful and not collected. The method and system involves creation of a metadata sub cell within the catalog wherein the diagnostic data is stored and is tied to other metadata associated with a data set. The metadata sub cell may reside on a volume such as, but not limited to, a VSAM Volume Data Set (VVDS). The diagnostic data stored in the metadata sub cell may be used for performance analysis as well as diagnostics. A catalog locate function is called to retrieve information about the data set when requested by a program.

The method and system records job name and system name along with a counter to record a number of catalog locate function requested by a job on a given system. The recorded data is initially written to cache such as, but not limited to, a Virtual Lookaside Facility (VLF) rather than to the catalog thus avoiding a lock to the catalog for an update. Subsequently when the catalog is locked for an update, the recorded data is written from the cache to the data set. When a LISTCAT command is issued against the data set, the metadata sub cell...