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Disk array processing method

A technology of disk array and processing method, which is applied in hardware monitoring, input/output to record carrier, etc., and can solve the problems of no fault tolerance function, bottleneck of data transmission rate of storage media, data damage, etc.

Inactive Publication Date: 2010-10-06
INVENTEC CORP
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Problems solved by technology

However, generally large-capacity storage media, such as hard disks, are limited by the access rate of the read head itself and the transfer rate of the bus connected to it, thus causing a bottleneck in the data transfer rate of such storage media
In addition, this type of storage medium is not fault-tolerant, so when the storage medium is damaged, the data stored on it is also destroyed

Method used

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  • Disk array processing method
  • Disk array processing method

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Embodiment Construction

[0013] Please refer to figure 1 , which shows a flowchart of a disk array (Redundant Array of Inexpensive Disks, RAID) processing method according to an embodiment of the present invention. The disk array processing method has the ability to handle hot plug (Hot Plug) by detecting whether there is a hard disk added or removed on each connection port of the disk array when receiving the command for accessing the disk array. Disk array processing method 100 includes the following steps:

[0014] In step 110, a hard disk list of a disk array is obtained from at least one hard disk connected to a disk array. Wherein, the obtained hard disk list is in the format of mini-RIS (RAID Information Sectors) (small disk array information sector) or other disk array setting file formats, and in the hard disk list there are previously connected to the disk array The information of at least one previous hard disk, such as the identification code of the previous hard disk, the connection por...

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Abstract

The invention relates to a disk array processing method, comprising the following steps of: when a disk array command for accessing a disk array is received, judging whether the hard disk list of the disk array has a removed hard disk disconnected with the disk array or not; when the hard disk list has the removed hard disk disconnected with the disk array, amending the hard disk list; detecting whether a new hard disk which does not exist in the hard disk list is connected with the disk array or not; when the new hard disk is connected with the disk array, amending the hard disk list; and executing the disk array command and accessing the disk array according to the hard disk list of the disk array.

Description

technical field [0001] The present invention relates to a disk array processing method, and in particular to a disk array processing method with hot plug function. Background technique [0002] With the increasing popularity of computers, the amount of data that people store in computers is also increasing. Therefore, computer manufacturers are required to continuously develop storage media with larger capacities. However, generally a storage medium with large capacity, such as a hard disk, is limited by the access rate of its own read head and the transmission rate of the bus connected to it, thus causing a bottleneck in the data transmission rate of this type of storage medium. In addition, this type of storage medium does not have a fault-tolerant function, so when the storage medium is damaged, the stored data is also destroyed. [0003] Therefore, a Redundant Array of Inexpensive Disks (RAID) has been developed to emulate a logical hard disk through several physical h...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F11/30
Inventor 陈重江
Owner INVENTEC CORP
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