Browse Prior Art Database

Status File Recovery and Archive Server Methodology

IP.com Disclosure Number: IPCOM000103963D
Original Publication Date: 1993-Feb-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Debry, R: AUTHOR [+5]

Abstract

Disclosed is a method to provide recovery and register target files movements to an Archive Server (backup data repository) for backup and restore operations in a machine independent format.

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This is the abbreviated version, containing approximately 100% of the total text.

Status File Recovery and Archive Server Methodology

      Disclosed is a method to provide recovery and register target
files movements to an Archive Server (backup data repository) for
backup and restore operations in a machine independent format.

      The Status File maintains a list of files that will be moved to
the Archive Server.  It is essential to have this information on disk
rather than in memory.  If a catastrophic failure occurs, the
in-memory lists will be lost, and there is no way to recover from
such a condition.

      Because this application operates in a distributed,
client/server environment, it is also essential to represent the data
in a format that is independent of the machine architecture.  This is
done by writing structures to disk using External Data Representation
(XDR).  XDR is a facility that allows simple to complex data types to
be defined without regard to a specific operating system or machine
architecture.

      In order to maintain some type of integrity when failure
occurs, data has to be maintained on disk in a consistent format.