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pcie SSD custom log storage method, device and SSD

A custom and log technology, applied in the field of SSD, can solve the problem that the host cannot read the custom log

Active Publication Date: 2021-07-27
HUNAN GOKE MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a PCIE SSD custom log storage method and device to solve the technical problem that the host cannot read the custom log when the SSD fails

Method used

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  • pcie SSD custom log storage method, device and SSD
  • pcie SSD custom log storage method, device and SSD
  • pcie SSD custom log storage method, device and SSD

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Embodiment Construction

[0037] In the prior art, before the host obtains the vendor log in the SSD, abnormal situations such as IO time out may have occurred. Kick out. When the SSD is kicked out by the host, the host cannot send any commands to the SSD, so that the vendor logs stored in the SSD cannot be read by the host. If the host wants to read the vendor log in the FLASH chip by rescanning the disk, it needs to adopt the abnormal power off process. Get all vendor log information. In addition, if the FLASH chip or the download path of the FLASH chip is abnormal, the vendor log in the log buffer area cannot be downloaded to the FLASH chip and will be lost. In order to solve the technical problem that the host cannot read the custom log when the SSD fails, this application provides a storage method for the PCIE SSD custom log. The core idea of ​​this method is: the host stores the custom log generated by the SSD In the memory, according to the preset flushing strategy, the cache is flashed in th...

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Abstract

The application provides a PCIE SSD custom log storage method, device and solid-state hard disk, the method includes: assigning the address of the host memory that allows the SSD to perform read and write operations, and the address corresponds to at least one cache area; The custom log from the SSD control chip is stored in the cache area according to the address; according to the preset flush strategy, the custom log written in the cache area is flashed to other disks except this SSD . In this application, the host stores the custom logs generated by the SSD in the memory, and then flashes the custom logs cached in the memory to other disks of the host for long-term storage according to the preset flushing strategy, so that the cache of the custom logs Both the flashing and flashing are located on the host side, so that even if the SSD fails, the host can smoothly read the custom logs in other disks, so as to identify the running information of the SSD recorded in the custom logs.

Description

technical field [0001] The present application relates to the field of storage technology, in particular to a storage method, device and SSD for PCIE SSD custom logs. Background technique [0002] SSDs (Solid State Drives, solid state drives) have been widely used in high-performance storage systems because of their low read and write latency and high bandwidth. According to different motherboard interface standards, SSD can be divided into SATA (Serial Advanced Technology Attachment, serial advanced technology attachment) SSD, SAS (Serial Attached SCSI, serial SCSI) SSD and PCIE (Peripheral Component Interconnect-Express, fast external component interconnection) ) SSD and other types of solid-state hard drives, among which, PCIE SSD has higher transmission efficiency and random read and write performance than other SSDs. [0003] figure 1 It is a schematic diagram of a common PCIE SSD topology. Depend on figure 1 It can be seen that the terminal system includes a host a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02
CPCG06F12/0223
Inventor 王翔姜黎彭鹏
Owner HUNAN GOKE MICROELECTRONICS