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Method and device for simulating iSCSI facility on logic roll administrator

A technology for storage devices and target storage devices, applied in the field of storage devices, can solve the problems of limiting the flexibility of storage space, it is difficult to add, remove, increase or reduce drives, etc.

Inactive Publication Date: 2007-05-16
INT BUSINESS MASCH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Using iSCSI devices with real SCSI disk drives limits flexibility in the management of storage spaces associated with SCSI disks
For example, it is difficult to add, remove, increase or decrease drives while the iSCSI device is running
Another problem associated with the use of real SCSI disk drives is the fragmentation of disk space

Method used

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  • Method and device for simulating iSCSI facility on logic roll administrator
  • Method and device for simulating iSCSI facility on logic roll administrator
  • Method and device for simulating iSCSI facility on logic roll administrator

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Embodiment Construction

[0014] What the applicant considers to be novel features of the claims stated at the end of the specification are features of the invention. The present invention, preferred modes of use, objects and advantages will be best understood from the detailed description made with reference to the following drawings.

[0015] Referring to FIG. 1, components of a system 100 using the iSCSI protocol ("iSCSI system") are shown. The iSCSI system 100 is shown having a client-server architecture comprising a network 160 . With respect to system 100, a client 110 or an application 115 of a client 110 is referred to as an initiator. The initiator issues SCSI commands to request services from a logical unit ("LU"). An LU is a single I / O device, such as SCSI drive 150 . The iSCSI initiator includes a software driver that transmits SCSI requests to the server 120 over the network 160 . When the initiator sends the request, the operating system of the client 110 generates the appropriate SCS...

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PUM

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Abstract

In one form, a method for accessing data stored on an Internet storage device includes receiving iSCSI formatted information by an Internet based storage device. The information describes commands directed to a target storage device. The commands are redirected to a SCSI emulator configured to emulate the target storage device. The emulator generates file input / output information in response to the commands. The file input / output information identifies a location and size of a file controlled by a file system manager of the Internet storage device.

Description

technical field [0001] The present invention relates to storage devices, and in particular to emulating network-based storage devices. Background technique [0002] Small Computer System Interface ("SCSI") is a well-known interface standard for connecting computers to peripheral devices such as drives, disk arrays, printers, and the like. Internet Small Computer System Interface ("iSCSI") is a newer Internet Protocol ("IP") based storage networking standard used to link data storage devices. This is an open standard developed by the Internet Engineering Task Force ("IETF"). According to iSCSI, SCSI command information is packaged by TCP / IP to allow it to be transmitted over IP-based networks, including Ethernet and Gigabit Ethernet. Thus, by executing SCSI commands over an IP network, data transfer may be provided between applications and devices conforming to the iSCSI protocol ("iSCSI" devices) over Ethernet and / or intranets. Such iSCSI devices may include real (ie, phy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/00G06F12/06G06F9/455G06F3/06G06F12/00
CPCG06F3/0643G06F3/067G06F3/0607G06F3/0661G06F3/0664
Inventor 亚当·威廉·霍克斯凯尔曼·茨威·玛斯查尔斯·威廉·普莱斯二世
Owner INT BUSINESS MASCH CORP