US 12,724,655 B2 · Host controlled mitigation of panic situation

Abstract

By detecting panic situations and providing a host device detailed panic data and mitigation options before the panic situation condition occurs, failure of data storage devices may be reduced. Several mitigation options may be presented to the host device upon detection of a future panic situation, such as adjusting read performance; increasing device power; performing evacuation and management operations; and/or redirecting host commands to another data storage device for command completion. When the other data storage device is in the same PCIe tree and reachable, the command may be directed with PRPs/SGLs that point back to the same host device. In some embodiments, the data storage devices may have a submission queue between them. In some embodiments, the data storage device comprises a panic early detection module and a panic control module.

Claims19

Dependent claims

A data storage device, comprising:

a memory device;
and
a controller coupled to the memory device, wherein the controller is configured to:
detect a future panic situation of the data storage device;
analyze the future panic situation;
suggest at least one mitigation option to a host device, wherein the suggestion comprises a decision timeout;
perform a default mitigation option while waiting to receive a selected mitigation option from the host device;
receive from the host device the selected mitigation option selected from the suggested at least one mitigation options;
and
perform the selected mitigation option.

7 more elements

Dependencies are inferred from the claim text.

Host controlled mitigation of panic situation

Life of this patent

Host controlled mitigation of panic situation

Life of this patent

Abstract

Claims19