Data migration using parallel, distributed table driven I/O...

Electrical computers and digital data processing systems: input/ – Input/output data processing – Concurrent input/output processing and data transfer

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C711S102000, C711S203000, C711S204000, C711S205000, C711S206000

Reexamination Certificate

active

06718404

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a method using a distributed, virtual disk storage system to move data among storage devices.
BACKGROUND OF THE INVENTION
A storage area network (SAN) operates, in effect, as an extended and shared storage bus between hosts and storage devices to offer improved storage management, scalability, flexibility, availability, access, movement, and backup. Storage virtualization in the SAN further improves storage through the separation of host system views of storage from physical storage. In a virtual storage system, the hosts connect to the storage devices through a virtual disk that maps to the data on the storage devices. This allows new storage management value to be introduced, including the ability to migrate data among physical storage components without effecting the host view of data. As a result, data may be repositioned within a storage device or copied to a separate storage device seamlessly, without significantly affecting the operation and performance of the host. To take advantage of the new virtual storage, it is the goal of the present invention to provide an improved methodology for moving data within the storage devices.
It is a further goal of the present invention to provide a methodology for seamlessly migrating data files in virtualized storage networks using parallel distributed table driven I/O mapping. These systems concurrently use multiple copies of a mapping table. A main challenge of data migration in a distributed virtual network is coordinating the separate copies of the mapping table so that the host does not effect the data during migration and have access to the moved data after migration. Current solutions exist in architectures that are not distributed among hosts or not distributed across storage subsystems.


REFERENCES:
patent: 5787487 (1998-07-01), Hashimoto et al.
patent: 5835964 (1998-11-01), Draves et al.
patent: 5940850 (1999-08-01), Harish et al.
patent: 6223271 (2001-04-01), Cepulis
patent: 6433787 (2002-08-01), Murphy
patent: 6526472 (2003-02-01), Suzuki
Montague, Robert M. et al., Virtualizing The SAN, Morgan Keegan & Company, Inc., Jul. 5, 2000, pp. 1-20.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Data migration using parallel, distributed table driven I/O... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data migration using parallel, distributed table driven I/O..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data migration using parallel, distributed table driven I/O... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3245846

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.