Storage control apparatus, storage apparatus, storage control method, and computer product

a technology of storage control and control apparatus, applied in the field of storage control apparatus, storage apparatus, storage control method, and computer products, can solve the problems of delayed execution of error handling routines and inability to quickly execute error handling routines

Inactive Publication Date: 2005-03-17
TOSHIBA STORAGE DEVICE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented invention solves issues with current methods for producing materials that are difficult or expensive to produce.

Problems solved by technology

The technical problem addressed in this patent is how to efficiently handle errors during retransmission of commands sent through a communication channel called the serial ATA protocol, which can cause delays or crashes if there are no responses before sending them back up.

Method used

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  • Storage control apparatus, storage apparatus, storage control method, and computer product
  • Storage control apparatus, storage apparatus, storage control method, and computer product
  • Storage control apparatus, storage apparatus, storage control method, and computer product

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Embodiment Construction

[0020] Exemplary embodiments of a storage control apparatus, a storage apparatus, a storage control method, and a computer program according to the present invention are explained in detail below with reference to the accompanying drawings. As an example of the storage control apparatus, a case of applying the present invention to a hard disk control unit according to the serial AT attachment (serial ATA) standard is explained below. Data transmission / reception is performed between a host computer and the hard disk control unit using a packet referred to as frame information structure (FIS) based on the serial ATA standard.

[0021] The configuration of the hard disk control unit according to an embodiment of the present invention is explained below. Various commands are transmitted from the host computer to the hard disk control unit. However, since attributes of FIS received by the hard disk control unit, that is, a type and a length of FIS and a receiving order of FISs are determine

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Abstract

Information about an attribute of packets that are receivable corresponding to a command is registered. When a packet is received, information about an attribute of the packet received is acquired. Upon occurrence of a reception error that there is no information in the attribute registering unit corresponding to the information acquired by the attribute acquiring unit, a predetermined reception error handling routine is executed according to a type of the reception error.

Description

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Claims

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Application Information

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Owner TOSHIBA STORAGE DEVICE CORP
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