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| Telephone on which the number called is composed by a crown of the horological type |
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| Notebook security system (NBS) |
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Computer storage system and failover method
| Details |
Inventors: Tawil, Ahmad H.; Luning, Stephen G.;
Assignee: Dell Products L.P. (Round Rock, TX)
Primary Examiner: Baderman; Scott
Assistant Examiner:
Attorney, Agent or Firm: Baker Botts L.L.P.
The present disclosure describes a system and method of performing failover in a storage area network. In one embodiment of the present disclosure, a computer network includes a host and a storage system associated with the host. The storage system has a first controller with a first port and a second controller with a second port. The first controller is assigned a common node name and the first port is assigned a first port name. The second controller is assigned a common node name and the second port is assigned a second port name. More specifically a multipathing driver is operable to determine a signal path for a communication sent to a storage device associated with the first controller and the second controller and operable to perform failover operations if the signal path fails. |
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DETAILED DESCRIPTION Preferred embodiments and their advantages are best understood by reference to FIGS.
1 and 2, wherein like numbers are used to indicate like and corresponding parts.
Referring now to FIG.
1, a schematic diagram of storage area network (SAN) 10 according to the present disclosure is shown.
SAN 10 includes server 12 communicatively coupled to high availability storage system 22.
Server 12 includes multipathing driver 13, first host bus adapter (HBA) 14 and second HBA 16.
First HBA 14 and second HBA 16 are preferably communicatively coupled to multipathing driver 13.
First HBA 14 may be communicatively coupled to first switch 18.
First switch 18 may be communicatively coupled to first controller 24 within high availability storage system 22.
Second HBA 16 may be communicatively coupled to second switch 20.
Second switch 20 is communicatively coupled to second controller 26 within high availability storage system 22.
In the present embodiment, first switch 18 and second switch 20 are a part of switch fabric 17.
High availability storage subsystem 22 includes first controller 24 and second controller 26.
First controller 24 may be communicatively coupled to memory devices 32, 34, 36, 38, 40 and 42.
Storage devices 32, 34, 36, 38, 40 and 42 are also preferably communicatively coupled to second controller 26.
In the present embodiment, Storage devices 32, 34, 36, 38, 40 and 42 are both communicatively coupled to first controller 24 and second controller 26 by first communication path 28 and second communication path 30.
In this embodiment, high availability storage system 22, first controller 24, and second controller 26 may be operable to monitor the transfer of data within high availability storage subsystem and perform failover operations within high availability storage system 22.
In an alternative embodiment, the number of storage devices communicatively coupled to controllers 24 and 26 may be increased or decreased.
In the present embodiment, first HBA 14 and second HBA 16 are preferably hardware components within server 12
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File Sharing 
