Reducing resources in a high reliability data storage subsystem
CA 1324840 C · Owner: Schneider, Frederick W. · Inventors: Schneider, Frederick W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To improve data reliability in a computer system at, least one primary copy and one secondary duplicate copy of data are stored each in a different storage devices having similar access characteristics. Periodically a copy of the, data is logged into an archival device. The secondary copy is then removed from the storage devices. The space occupied by the removed secondary copy is reallocated to store other data.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.