The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2002
Filed:
Jul. 06, 2000
Laurent Cargemel, Avrille, FR;
Daniel Carteau, Montigny le Bretonneux, FR;
Jacques Delepoulle, Saint Germain de la Grange, FR;
Bull S.A., Louveciennes, FR;
Abstract
A disk cache device for secure writing comprising a backup power supply source ( ) for supplying backup power for a given duration to a computer system fed by two main electric power supply devices ( ) and comprising at least one hard disk drive ( ), and a host system ( ). All of the disk drives ( ) are linked by a bus ( ) to a connection ( ) of the host system ( ) (host bus adapter), and a monitor ( ) for monitoring at least the backup electric power supply source ( ) and the main power supply devices ( ). Monitors ( ) are connected to the interface ( ) and can be interrogated by an interrogator ( ) for interrogating the host system ( ) so that the latter can enable the write disk cache function, or not, in the write commands to be sent to the disk drives ( ) in accordance with the information gathered by the monitoring means ( ).