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:
May. 08, 2001
Filed:
Jan. 30, 1998
Applicant:
Inventors:
Edward K. Lee, Palo Alto, CA (US);
Chandramohan A. Thekkath, Palo Alto, CA (US);
Assignee:
Compaq Computer Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/214 ;
U.S. Cl.
CPC ...
G06F 1/214 ;
Abstract
A method for controlling access to a storage element that forms a portion of a logical storage device includes setting a write-barrier value to a first value upon receiving a request to copy the contents of the logical storage device. Write operations to the storage element are prohibited with the write-barrier value set to the first value. The portions of the logical storage device associated with the storage element are then copied. Upon the completion of the copying, the write-barrier value is then set to a second value.