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:
Feb. 14, 2023
Filed:
May. 29, 2020
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Mikhail Danilov, Saint Petersburg, RU;
Konstantin Buinov, Prague, CZ;
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Abstract
The described technology is generally directed towards an input/output (I/O) load balancer of a data storage system that detects an I/O overloaded ('hot') storage unit and logically moves its hot data to a non-overloaded ('cold') storage unit. Threshold load levels can be used to determine hot and cold storage units. In one implementation, new writes to the hot storage unit are prevented while its hot data is logically moved to a cold storage unit. To avoid reads from the hot storage unit, the hot data can be recreated from redundant data obtained via a recovery path. To avoid a capacity imbalance, once enough hot data has been moved so that the (formerly) hot storage device is no longer considered hot, cold data from the cold storage device can be written to the formerly hot storage device. New data writes to the formerly hot storage device can then resume.