Browse Prior Art Database

Target server initiated data migration w/ remote snapshot

IP.com Disclosure Number: IPCOM000015839D
Original Publication Date: 2002-Jul-30
Included in the Prior Art Database: 2003-Jun-21
Document File: 2 page(s) / 75K

Publishing Venue

IBM

Abstract

This disclosure is to explain a data migration method initiated by a target server when migrating data stored across multiple Direct Attached Storage (DAS) into a single Network Attached Storage (NAS) or Storage Area Network (SAN) storage.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 52% of the total text.

Page 1 of 2

Target server initiated data migration w/ remote snapshot

This disclosure is to explain a data migration method initiated by a target server when migrating data stored across multiple Direct Attached Storage (DAS) into a single Network Attached Storage (NAS) or Storage Area Network (SAN) storage.

In large and small enterprise environments, the data storage need is increasing to store more data for e-business applications, data base applications, and internet applications. Management of storage spread across the enterprise environment is becoming an issue because of increasing complexity and management cost. In order to simplify the management of storage, users start migrating data into a consolidated storage environment such as NAS or SAN. This consolidation requires the data migration from existing servers to a single server. Traditionally, the data migration was performed by the way that mounts a target server on each source server and copies the objective data into the target server. In case there are multiple source servers, an administrator has to perform the same operation again and again for each source server. This will require much effort by the administrator, and the operations become complicated when the number of source servers increases. The following idea explains a data migration method initiated by a target server to simplify the operations.

If the following functions are available during the data migration process, the migration procedure will be simplified. Note that snapshot command is prerequisite at the source server.
1. Reverse mounting capability from the target server to the source server
2. Remote snapshot execution from the target server

A new mount command will be invented for the data migration in this scenario. When an administrator issues the mount command from the source server to the target server, the information required for the data migration operation is sent to the target server along with the mount command, which includes IP address, OS type, file system attributes, volume names to be migrated, and snapshot command information to be performed from the target server.

As soon as the target server receives this mount command, the target server moun...