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:
Mar. 19, 2024
Filed:
Oct. 27, 2021
Dell Products L.p., Round Rock, TX (US);
Nitin Madan, Cupertino, CA (US);
Kedar Godbole, Pune, IN;
Dell Products L.P., Hopkinton, MA (US);
Abstract
A prefetch mechanism stores data in the memory allocated in a remote passive (remote) node in a High Availability active-passive node pair. A read-ahead cache that can host different parts of a file is created on both the active and the passive nodes. The system improves the performance of sequential restores by using memory available on a passive node to supplement the local (active node) memory to hold the prefetched data for the common case of large sequential restores. This extra memory overcomes issues when a current prefetch fails to keep up with the target restore performance. Filesystem redirection is thus accomplished by servicing an I/O request by sending it another node that itself caches the data.