Adapter and method for handling errors in a data storage...

Details Adapter and method for handling errors in a data storage... Adapter and method for handling errors in a data storage...

2005-02-22

2005-02-22

Beausoliel, Robert (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S005110, C714S006130, C714S042000, C710S071000, C710S074000

Reexamination Certificate

active

06859896

ABSTRACT:
An adapter for converting an interface of a data storage device is provided. The adapter includes a first interface for connection to the interface of the data storage device and a second interface for connection to a plurality of host systems. The first interface may be an ATA or SCSI interface and the second interface may be a SSA or FC-AL interface suitable for attachment to multiple host systems. Conversion means are provided by the adapter for converting commands and data between the first and second interfaces. The adapter also has means for sorting commands and data to and from the plurality of host systems. The adapter acts as a single host system for the data storage device and includes means for retrieving error information from the data storage device in the event of a command terminating in an error. The adapter also comprises means for entering an error handling state with one of the plurality of host systems that persists until terminated by the host system and means for transferring the retrieved error information to the host system.

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“Control Unit Timeout for Interface”, 19930701, IBM Technical Disclousre Bulletin, vol. 36, Iss. 7, pp. 75-78.

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