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Storage control device and control method in storage control device

A storage device and storage control technology, applied in the direction of information storage, record information storage, information recording on disk, etc., can solve the problems of time delay and timing offset when image processing equipment becomes available

Inactive Publication Date: 2016-08-17
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the timing of power supply to each HDD is shifted, resulting in a delay in the time until the image processing device becomes usable after the image processing device is powered on.

Method used

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  • Storage control device and control method in storage control device
  • Storage control device and control method in storage control device
  • Storage control device and control method in storage control device

Examples

Experimental program
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Embodiment Construction

[0017] Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the structures shown in the embodiments described below are examples only, and the present invention is not limited to the structures shown in the drawings.

[0018] figure 1 is a block diagram showing the configuration of a multifunction peripheral (MFP) 1 . The MFP 1 is a typical image processing apparatus including a main controller 100 , a disk array device 200 , an HDD 301 , an HDD 302 , a power control unit 400 , a UI 500 , a scanner 600 and a printer 700 . It should be noted that, in the present embodiment, an image processing device is described as an example, but the device is not limited to an image processing device. Specifically, the device may be any device using the disk array device 200, or may be an information processing device (such as a PC). In addition, the disk array device 200 , HDD 301 , and HDD 302 may be devices external to the...

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PUM

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Abstract

There is provided a storage control device which performs mirroring by using a plurality of storage devices detects an activation state of each of the plurality of storage devices; and permits a Read request in a first state in which it is determined that one storage device is activated, and a Write request in a second state in which it is determined that the plurality of storage devices are activated.

Description

technical field [0001] The present invention is a technique related to control after power-on by a storage control device in which a plurality of hard disk drives (HDDs) are mounted. Background technique [0002] A disk array device using a plurality of storage devices (eg, HDD) is known. The disk array device is connected to a host as a higher-level device, and operates as a single storage device viewed from the host. The disk array device is also connected to a lower device, for example, two storage devices, and performs mirroring of the storage devices without being noticed by the host (RAID 1). [0003] In an image processing apparatus including such a disk array device, when the apparatus is powered on, power is supplied to each device in the image processing apparatus. Once power is supplied, the two storage devices connected to the disk array device each perform an initial operation such as spin-up, and once the two storage devices become usable, the two storage dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B19/20
CPCG11B19/209G06F3/0617G06F3/0632G06F3/0634G06F3/0689
Inventor 丹羽广次
Owner CANON KK