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:
Jul. 09, 2019
Filed:
Jul. 13, 2017
Emc Ip Holding Compnay Llc, Hopkinton, MA (US);
Krishna Chaitanya Gudipati, Fremont, CA (US);
Anil Ravindranath, Sunnyvale, CA (US);
Rahul Ugale, Santa Clara, CA (US);
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Abstract
In one embodiment, a storage system receives a number of input/output (IO) request transactions at the storage system having multiple storage devices. The system detects storage events associated with the storage devices, the storage events include storage device error events, storage device path error events, and solid state storage device high write amplification events. For each of the IO request transactions, the system tags a number of associated child IO requests with a tag identifier and predicts a completion time for the IO request transaction based on a completeness of the IO request transaction and detected events associated with the storage devices. The system sends the child IO requests to the storage devices to be serviced in a first order based on the predicted completion time and an arrival time of the IO request transaction so that the IO request transactions are resilient to storage events.