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:
Dec. 01, 2020
Filed:
Jan. 31, 2018
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Oguzhan Ozmen, Mississauga, CA;
Rakesh Kumar Thakur, Bangalore, IN;
Deepak Prakash Ghivari, Bangalore, IN;
Ashwini Joshi, Pune, IN;
Sneha Yadav, Uttarpradesh, IN;
Usha Narasappa, Bangalore, IN;
Koundinya Koorapati, Bangalore, IN;
Shailesh Jain, Kanpur, IN;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Techniques for non-disruptive upgrade of a storage appliance may include: restarting a first portion of nodes running a target software version while also running a current software version on a second portion of the nodes, wherein the non-disruptive upgrade is performed to upgrade the nodes of the storage appliance from the current software version to the target software version; performing I/O forwarding where I/Os from the host initiators are serviced using the second portion of the nodes and not serviced using the first portion of the nodes; and determining, in accordance with host initiator login information, whether to continue with the non-disruptive upgrade of the nodes to the target software version. Such techniques may be used, for example, to avoid data unavailability for one or more hosts using the host initiator login information.