Method and apparatus for implementing resilient connectivity in a Serial Attached SCSI (SAS) domain
First Claim
1. A method for implementing resilient connectivity in a Serial Attached SCSI (SAS) domain comprising the steps of:
- connecting a first edge expander to a first port of a plurality of SAS devices for enabling communications between each of said plurality of SAS devices through said first edge expander;
connecting a second edge expander to a second port of said plurality of SAS devices for enabling communications between each of said plurality of SAS devices through said second edge expander; and
connecting together a subtractive routing port of each of said first edge expander and said second edge expander for enabling communications between each of said plurality of SAS devices via said first ports and said second ports of said plurality of SAS devices.
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Abstract
A method and apparatus are provided for implementing resilient connectivity in a Serial Attached SCSI (SAS) domain. A first edge expander is connected to a first port of a plurality of SAS devices for enabling communications between each of the plurality of SAS devices through the first edge expander. A second edge expander is connected to a second port of the plurality of SAS devices for enabling communications between each of the plurality of SAS devices through the second edge expander. A subtractive routing port of each of the first edge expander and the second edge expander is connected together for enabling communications between each of the plurality of SAS devices via the first ports and the second ports of the plurality of SAS devices.
44 Citations
12 Claims
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1. A method for implementing resilient connectivity in a Serial Attached SCSI (SAS) domain comprising the steps of:
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connecting a first edge expander to a first port of a plurality of SAS devices for enabling communications between each of said plurality of SAS devices through said first edge expander;
connecting a second edge expander to a second port of said plurality of SAS devices for enabling communications between each of said plurality of SAS devices through said second edge expander; and
connecting together a subtractive routing port of each of said first edge expander and said second edge expander for enabling communications between each of said plurality of SAS devices via said first ports and said second ports of said plurality of SAS devices. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus for implementing resilient connectivity in a Serial Attached SCSI (SAS) domain comprising:
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a plurality of SAS devices, each having a first port and a second port;
a first edge expander and a second edge expander, each edge expander having a plurality of direct routing ports and a subtractive routing port;
each of said plurality of direct routing ports of said first edge expander respectively connected to said first port of a respective one of said plurality of SAS devices for enabling communications between each of said plurality of SAS devices;
each of said plurality of direct routing ports of the second edge expander respectively connected to said second port of a respective one of said plurality of SAS devices for enabling communications between each of said plurality of SAS devices; and
said subtractive routing ports of said first edge expander and said second edge expander connected together for enabling communications between each of said plurality of SAS devices via said first ports and said second ports of said plurality of SAS devices. - View Dependent Claims (8, 9, 10)
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11. A Serial Attached SCSI (SAS) network for implementing resilient connectivity in a SAS domain comprising:
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a first edge expander and a second edge expander, each edge expander having a plurality of direct routing ports and a subtractive routing port;
each of said plurality of direct routing ports of said first edge expander respectively connected to said first port of a respective one of a plurality of SAS devices for enabling communications between each of said plurality of SAS devices;
each of said plurality of direct routing ports of the second edge expander respectively connected to a second port of a respective one of said plurality of SAS devices for enabling communications between each of said plurality of SAS devices; and
said subtractive routing ports of said first edge expander and said second edge expander connected together for enabling communications between each of said plurality of SAS devices via said first ports and said second ports of said plurality of SAS devices. - View Dependent Claims (12)
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Specification