Method and system for selecting between serial storage buses using data signals of the buses
First Claim
1. A system for communicating with a SATA drive port through one of plural bridges, the system comprising:
- a multiplexing device interfaced with the SATA drive port, the multiplexing device operable to select one of plural data signals to communicate with the SATA drive port;
a first bridge port operable to accept a SATA signal from a first bridge;
a second bridge port operable to accept a SATA signal from a second bridge;
a first signal detector interfaced with the multiplexing device and with the first bridge port, the first signal detector operable detect a SATA signal received from the first bridge and to direct the multiplexing device to select the first bridge port to communicate with the SATA drive port;
a second signal detector interfaced with the multiplexing device and with the second bridge port, the second signal detector operable detect a SATA signal received from the second bridge port and to direct the multiplexing device to select the second bridge port to communicate with the SATA drive port.
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Accused Products
Abstract
A method and system for selecting one of plural storage buses to communicate with a storage information handling system having a single storage data port uses data storage signals of the buses to switch a multiplexing device that selects a bus that is sending a valid data storage signal. A bus selector interfaces a multiplexing device with the single port and interfaces first and second buses with the multiplexing device. A signal detector monitors the first and second buses to detect data storage signals, such as an establish port command, associated with a bus and directs the multiplexing device to enable an interface of the first bus with the single port. Redundancy is provided by allowing plural buses to selectively communicate with the single data port.
74 Citations
20 Claims
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1. A system for communicating with a SATA drive port through one of plural bridges, the system comprising:
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a multiplexing device interfaced with the SATA drive port, the multiplexing device operable to select one of plural data signals to communicate with the SATA drive port;
a first bridge port operable to accept a SATA signal from a first bridge;
a second bridge port operable to accept a SATA signal from a second bridge;
a first signal detector interfaced with the multiplexing device and with the first bridge port, the first signal detector operable detect a SATA signal received from the first bridge and to direct the multiplexing device to select the first bridge port to communicate with the SATA drive port;
a second signal detector interfaced with the multiplexing device and with the second bridge port, the second signal detector operable detect a SATA signal received from the second bridge port and to direct the multiplexing device to select the second bridge port to communicate with the SATA drive port. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for selecting one of plural buses to communicate a data signal with a storage drive, the storage drive having a single port, the method comprising:
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interfacing a multiplexing device with the single port;
interfacing first and second buses with the multiplexing device;
monitoring the first and second buses to detect data signals;
detecting a data signal associated with the first bus; and
directing the multiplexing device to enable an interface of the first bus with the single port. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. An information handling system comprising:
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plural storage devices, each storage device having one data port;
plural bridges, each bridge interfaced to each storage device and operable to establish communication between each storage device and one or more external devices; and
a bus selector associated with each storage device data port, each bus selector operable to detect storage data signals from one of the bridges and to interface the bridge associated with the detected data signal with the data port. - View Dependent Claims (18, 19, 20)
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Specification