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Storage apparatus, storage system and path information setting method

A storage device and a technology for storing information, applied in memory systems, transmission systems, instruments, etc., can solve problems such as maintenance errors of path definition information, complicated setting operations of path definition information, etc., and achieve simple setting and management, management and Simple work effect

Active Publication Date: 2009-06-10
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In conventional storage devices, paths must be defined for all physical ports, and the setting of path definition information is cumbersome, and maintenance errors accompanying the setting of path definition information sometimes occur.

Method used

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  • Storage apparatus, storage system and path information setting method
  • Storage apparatus, storage system and path information setting method
  • Storage apparatus, storage system and path information setting method

Examples

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Embodiment Construction

[0031] In the present invention, information is correctly transferred from a host computer to a logical unit of a storage unit by setting path definition information for a logical port that logically integrates a plurality of physical ports existing in a storage device into one. Also, by summarizing a switch having a plurality of switch ports and an access path to a logical unit of a storage unit into one logical access path, the entry of the access path is provided to the host computer as one logical port.

[0032] One embodiment of the present invention will be described below with reference to the drawings. figure 1 It is a block diagram showing an embodiment of the storage system of the present invention. exist figure 1 Among them, the storage system has a host computer (superior device) 10, and the host computer 10 is connected to a storage device 14 through a communication network 12 such as a SAN (Storage Area Network) or a LAN (Local Area Network).

[0033] The stora...

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PUM

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Abstract

The purpose of the invention is to provide a simply-set memory device and memory system for correctly transmitting the route defining information from the logic unit of the memory unit of the computer and a method for setting the route. A logical port L1 which is obtained by integrating switch ports in a switch 16 and storage ports in a storage 20, and an access path group connecting the switch port in the switch 16 to the logical device 46 in the storage 29 are associated with each other, and information indicating that the entrance of the logical port L1 serves as the entrance of access for a host computer 10 is provided to the host computer 10.

Description

technical field [0001] The present invention relates to a storage device, a storage system, and a path information setting method for storing data transmitted and received between a host computer (superior device) in a hard disk drive (HDD). Background technique [0002] As this kind of storage device, for example, there are known a storage unit having stored information, a plurality of physical ports forming an interface to a logic unit of the storage unit connected to a host computer through a communication network, and a device for controlling reading and writing of data to the storage unit. A storage device that stores the control device. [0003] Since the storage device has a plurality of physical ports, unless a path is defined from each physical port to a logical device (logical unit), writing or reading from each logical device cannot be performed in response to an access from a host computer. . Therefore, in the storage device, path definition information indicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06H04L29/08H04L29/06G06F12/00
CPCG06F3/0635G06F3/067G06F3/0607G06F3/0664
Inventor 高山悟田村圭史
Owner HITACHI LTD