Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral adapting
Reexamination Certificate
2002-09-30
2003-11-25
Elamin, Abdelmoniem (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral adapting
C710S120000, C439S061000, C361S777000, C361S778000
Reexamination Certificate
active
06654829
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to computer connecters, and more particularly, but not by way of limitation, to a small computer systems interface (SCSI) connector interface for receiving multiple, redundant and interchangeable SCSI controllers.
BACKGROUND OF THE INVENTION
Today's businesses are becoming more and more dependent upon computer systems, including network computer systems, for their day-to-day operations. As can be appreciated, the requirement for minimum down-time of these computer systems is imperative, especially in network computer systems, where many users can be affected when a single component in the systems fails.
Some of the current computer technologies have started utilizing “hot pluggable”, redundant power supplies, whereby if one supply fails or needs replacing, the power to the computer system is maintained by the second power supply, such that the computer system does not need to be powered down while the defective power supply is being repaired or replaced. However, as can be appreciated, there are many other components such as controller interface, within a computer system that can fail, causing system downtime.
Many current computer systems use a small computer systems interface (SCSI) for connecting peripheral components, such as scanners, hard disk drives and compact disk drives, to the computer system via a standard hardware interface, which uses standard SCSI commands. If the SCSI controller fails, access by the users to the device drives controlled by the SCSI is prevented.
Therefore, it is highly desirable to have a hot pluggable, SCSI backplane interface that can receive redundant, interchangeable SCSI controller cards.
SUMMARY OF THE INVENTION
The present invention overcomes the above identified problems as well as other shortcomings and deficiencies of existing technologies by providing a computer system utilizing a SCSI controller backplane configured for receiving multiple interchangeable SCSI controller cards. The SCSI controller backplane is further configured so that the data paths between the SCSI controller slots and the SCSI controller circuitry do not cross.
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Galloway William C.
Scholhamer George J.
Zandy Michael S.
Elamin Abdelmoniem
Hewlett--Packard Development Company, L.P.
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