Browse Prior Art Database

Data and Configuration Disaster Recovery

IP.com Disclosure Number: IPCOM000008435D
Publication Date: 2002-Jun-13
Document File: 2 page(s) / 81K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for making a replica of a backed-up storage system after it is lost in a disaster. Benefits include restoring configurations and options, as well as the lost data.

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Data and Configuration Disaster Recovery

Disclosed is a method for making a replica of a backed-up storage system after it is lost in a disaster. Benefits include restoring configurations and options, as well as the lost data.

Background

With a patent called “Multiple Controller Coherent Image Online Backup,” it is possible to get a coherent snapshot image of all disks, across all disks, on an entire system. This process is done completely online by the storage controller boards, with no other limitations. The disclosed method helps facilitate this invention, but can also work as a stand alone process.

General Description

In a controller-directed online image backup, the storage controller board saves its own data image to the backup medium (i.e. the tape drive). The disclosed method also saves the controller board’s configuration to the tape drive as well. In addition, it saves:

§         the hardware configuration (the type of hardware board it is, the revision level, the   serial number, features, and any other variable hardware options physically on the board)

§         the firmware revision level

§         the board’s soft selectable options (the initiator SCSI ID, selected sync data xfer rates, etc.)

§         the volume info (the volumes’ geometry, RAID level, strip size number of disks, spare disks available, etc.)

§         other performance tuning options (the caching types, etc.)

When a restore is done, the configuration is read and restored from the tape. The data is then restored and the user has an exa...