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Method and system for saving critical data in the event of power loss

A technology of power loss and storage system, which is applied in the direction of electric digital data processing, input/output process of data processing, data recording, etc., and can solve problems such as power loss

Active Publication Date: 2020-07-07
SEAGATE TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in some cases, power loss may occur due to the user disconnecting the hot-swappable storage device

Method used

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  • Method and system for saving critical data in the event of power loss
  • Method and system for saving critical data in the event of power loss
  • Method and system for saving critical data in the event of power loss

Examples

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Embodiment Construction

[0022] The following generally relates to preserving critical data upon loss of power. In one embodiment, the present systems and methods detect a loss of power on the storage device, and when a loss of power is detected, store a predetermined amount of data in the non-volatile memory of the storage device.

[0023] In some embodiments, power loss may occur while an operation (eg, reading, writing, erasing, trimming, or any combination thereof) is being performed on the storage device. In some cases, a drive failure may occur when a loss of power occurs while the storage drive is performing operations. For example, when a power loss occurs while the storage drive is performing a write operation, the storage drive may time out because, after power is restored, the storage drive attempts to verify corrupted data on the track that was written to during the write operation. The tracks are adjacent. Once power is restored, the storage drive can verify the data written to the trac...

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PUM

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Abstract

The present invention describes systems and methods for preserving critical data in the event of power loss. In one embodiment, the system and method includes performing a write operation on a first track of a storage drive, monitoring the voltage level of the storage drive to detect a loss of power on the storage drive while the write operation is being performed, and upon detecting a storage Upon loss of power on the drive, a track ID of a second track adjacent to the first track is identified, and the identified track ID is stored in non-volatile memory on the storage drive.

Description

technical field [0001] The present disclosure relates to methods and systems for preserving critical data upon loss of power. Background technique [0002] Storage devices may include hard disk drives, solid state drives, hybrid hard disk and solid state drives, or any combination thereof. Power loss can occur for a variety of reasons, including utility failures (e.g., blackouts, blackouts, etc.), electrical system failures (e.g., building or home electrical system failures), electrical component failures (e.g., components on storage failure) and so on. In some cases, the storage device may include a hot-swappable cable, such as a Universal Serial Bus (USB) cable, that allows the storage device to be powered down and / or connected to the host system by wired or wireless means. Therefore, in some cases, power loss may occur due to a user disconnecting a hot-swap storage device. Contents of the invention [0003] The present disclosure relates to methods and systems for pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B5/012G11B20/12
CPCG11B5/012G11B20/1217G06F11/1441G06F11/3034G06F11/3058G06F12/16G11B19/044G11B19/047G11B19/20G06F3/0619G06F3/0653G06F3/0685Y02D10/00
Inventor 沈锦泉
Owner SEAGATE TECH LLC
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