Systems, methods, and devices for fault resilient storage

US12259786B2 · kind B2 · utility

Assignee

• SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

• Yang Seok Ki · Palo Alto, US
• Sungwook Ryu · Palo Alto, US
• Alain Tran · Hwaseong-si, KR

Key dates

• Filing date: Apr 15, 2021
• Grant date: Mar 25, 2025
• Expiry date: Apr 15, 2041

Classification

• Technology area (CPC —): General

Abstract

A method of operating a storage device may include determining a fault condition of the storage device, selecting a fault resilient mode based on the fault condition of the storage device, and operating the storage device in the selected fault resilient mode. The selected fault resilient mode may include one of a power cycle mode, a reformat mode, a reduced capacity read-only mode, a reduced capacity mode, a reduced performance mode, a read-only mode, a partial read-only mode, a temporary read-only mode, a temporary partial read-only mode, or a vulnerable mode. The storage device may be configured to perform a namespace capacity management command received from the host. The namespace capacity management command may include a resize subcommand and/or a zero-size namespace subcommand. The storage device may report the selected fault resilient mode to a host.