IBM Patented Method for Cache-Based Dropped Write Protection

Strategic Insights -

IBM has been assigned a patent (7,908,512) for a "method and system for cache-based dropped write protection in data storage systems." This technology was developed by four co-inventors: Veera A. Deenadhayalan, Binny Sher Gill, James Lee Hafner, and Leo Shyh-Wei Luan. The patent provides a method for detecting undetected write errors in storage systems by writing data to a storage medium from a data cache, maintaining a copy of the data in the data cache until it is validated or needs to be evicted, and maintaining metadata for the data in a metadata cache until the data is validated against the metadata.

Key Takeaways:

  • The patented technology, developed by Veera A. Deenadhayalan, Binny Sher Gill, James Lee Hafner, and Leo Shyh-Wei Luan, provides cache-based dropped write protection in data storage systems.
  • The method involves detecting undetected write errors in storage systems by writing data to a storage medium from a data cache.
  • A copy of the data is maintained in the data cache until it is validated or needs to be evicted.
  • Metadata for the data is maintained in a metadata cache until the data is validated against the metadata.
  • The patent application was filed on March 5, 2008 (12/042,984).
  • The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=33&f=G&l=50&co1=AND&d=PTXT&s1=20110315.PD.&s2=%28NY.ASST.%29&OS=ISD/03/15/2011+AND+AS/NY&RS=ISD/03/15/2011+AND+AS/NY
  • Written by Satyaban Rath, edited by Hemanta Panigrahi, in collaboration with Contify.
  • The patent provides a solution for undetected write errors in storage systems, ensuring the integrity of data storage.

Statistics:

  • Patent Number: 7,908,512
  • Filed Date: March 5, 2008 (12/042,984)
  • Publication Date: Not specified in the source
  • Number of Co-inventors: 4
  • Technology Category: Cache-based dropped write protection in data storage systems

Sources:

  • U.S. Patent and Trademark Office (full-text of the patent)
  • Contify (written by Satyaban Rath, edited by Hemanta Panigrahi, in collaboration with Contify)