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Method and device for data overtime aging processing

A technology for aging processing and data, applied in the direction of memory address/allocation/relocation, etc.

Inactive Publication Date: 2013-12-11
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The object of the present invention is to provide a data overtime aging processing method and its device to solve the problems caused by using timers for data overtime aging processing in the existing storage technology The problem of large resource overhead, for this reason, the present invention adopts the following technical solutions:

Method used

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  • Method and device for data overtime aging processing
  • Method and device for data overtime aging processing
  • Method and device for data overtime aging processing

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Embodiment Construction

[0053] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0054] In the case that it is only necessary to exclude the over-aged error information from the error correction processing decision, and does not require the timeliness of the error information overtime aging, the embodiment of the present invention implements the error information overtime aging processing flow of the existing storage technology. Optimized to reduce system resource overhead.

[0055] Specifically, when a certain type of error occurs for the first time, the SCSI controller records the error information, and records the current time when the error occurs as the time stamp of the error information, and performs error correction according to the recorded error information when performing error correction. decision making. When this type of error occurs again, the SCSI controller will compare the current time of the error with the time ...

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Abstract

The invention discloses a method and device for data overtime aging processing, which are applied to a data storage system comprising a small computer system interface (SCSI) controller and an SCSI device. The method is as follows: the SCSI controller receives and stores error messages sent by the SCSI device; the SCSI controller judges whether corresponding error messages reaches overtime aging time or not according to the time stamps of same-type error messages stored in the SCSI controller and current time; and if yes, overtime aging processing is carried out on the corresponding error messages by the SCSI controller. By using the method and device disclosed in the invention, system source overhead is saved while realizing overtime aging of error messages.

Description

technical field [0001] The invention relates to the technical field of computer data management, in particular to a storage technology data overtime aging processing method and a device thereof. Background technique [0002] In a general-purpose storage device, a disk array is generally used as a storage medium, and data redundancy is performed through a RAID (Redundant Array of Independent Disk, Redundant Array of Independent Disks) algorithm. Generally speaking, the RAID subsystem runs on the SCSI (Small Computer System Interface, small computer system interface) controller to operate or manage the disk as a SCSI device, that is, the RAID subsystem sends SCSI commands through the SCSI protocol to perform IO operations and disk management. In the SCSI protocol, a set of error information is defined. When an error occurs in the SCSI command, the SCSI device (here, the disk) returns them to the SCSI as part of the SCSI command response (called sense data, SCSI sensing data) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02
Inventor 张日新金堂郑劭馨汪文敏
Owner NEW H3C TECH CO LTD
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