Fibre channel dynamic zoning

• US 8,274,993 B2
• Filed: 06/16/2006
• Issued: 09/25/2012
• Est. Priority Date: 06/16/2006
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Sharma, Samar, Mishra, Chandan, Maino, Fabio
• Primary Examiner(s): Juntima, Nittaya
• Assistant Examiner(s): MURPHY, RHONDA L
• Application Number:
  US11/454,239
• Publication Number:
  US 20070291785A1
• Time in Patent Office: 2,293 Days
• Field of Search: None
• US Class Current: 370/465
• CPC Class Codes: H04L 41/06 Management of faults, events, alarms or notifications
• CPC Class Codes: H04L 41/0806 for initial configuration or provisioning, e.g. plug-and-play
• CPC Class Codes: H04L 41/082 the condition being updates or upgrades of network functionality
• CPC Class Codes: H04L 41/0886 Fully automatic configuration
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

Zone information is automatically and dynamically configured and managed in a fiber channel storage area network upon detection of network events. Some examples of events that trigger automatic dynamic zone updates include virtual port creation, intrusion/anomaly detection, arbitration decision completion, misconfiguration detection, and device malfunction. The newly created/updated zones are propagated through the fiber channel fabric and provide access control.

Claims

1. A method, comprising:

detecting an arbitration process between a first host and a second host for a first storage resource, the first storage resource included in a first zone in a fibre channel storage area network;

monitoring messages between the first host and the first storage resource by snooping messages between the first host and the first storage resource;

selecting the first host using an arbitration algorithm;

updating zoning information associated with the first host by dynamically assigning the first host to the first zone and excluding the second host from the first zone;

propagating updated zoning information through the fibre channel storage area network.

2. The method of claim 1, wherein the first storage resource is a first disk array.

3. The method of claim 1, wherein the first host is a first fibre channel initiator.

4. The method of claim 1, wherein the second host is a second fibre channel initiator.

5. The method of claim 1, wherein the first zone specifies fibre channel storage area network devices that the first host is allowed to access.

6. The method of claim 1, wherein the first zone is updated dynamically and manually.

7. The method of claim 1, wherein the arbitration process is detected at a fibre channel storage area network switch.

8. The method of claim 7, wherein messages are monitored using an intelligent line card at the fibre channel storage area network switch.

9. The method of claim 1, wherein the second host is included in a second zone.

10. A system, comprising:

an interface configured to detect an arbitration process between a first host and a second host for a first storage resource, the first storage resource included in a first zone in a fibre channel storage area network;

a processor configured to monitor messages between the first host and the first storage resource by snooping messages between the first host and the first storage resource, select the first host using an arbitration algorithm, and update zoning information associated with the first host by dynamically assigning the first host to the first zone and excluding the second host from the first zone;

wherein the interface is further configured to propagate updated zoning information through the fibre channel storage area network.

11. The system of claim 10, wherein the first storage resource is a first disk array.

12. The system of claim 10, wherein the first host is a first fibre channel initiator.

13. The system of claim 10, wherein the second host is a second fibre channel initiator.

14. The system of claim 10, wherein the first zone specifies fibre channel storage area network devices that the first host is allowed to access.

15. The system of claim 10, wherein the first zone is updated dynamically and manually.

16. The system of claim 10, wherein the system is a fibre channel storage area network switch.

17. The system of claim 10, wherein messages are monitored using an intelligent line card at the fibre channel storage area network switch.

18. The system of claim 10, wherein the second host is included in a second zone.

19. An apparatus, comprising:

means for detecting an arbitration process between a first host and a second host for a first storage resource, the first storage resource included in a first zone in a fibre channel storage area network;

means for monitoring messages between the first host and the first storage resource by snooping messages between the first host and the first storage resource;

means for selecting the first host using an arbitration algorithm;

means for updating zoning information associated with the first host by dynamically assigning the first host to the first zone and excluding the second host from the first zone;

means for propagating updated zoning information through the fibre channel storage area network.

20. A non-transitory computer readable medium, comprising:

computer code for detecting an arbitration process between a first host and a second host for a first storage resource, the first storage resource included in a first zone in a fibre channel storage area network;

computer code for monitoring messages between the first host and the first storage resource by snooping messages between the first host and the first storage resource;

computer code for selecting the first host using an arbitration algorithm;

computer code for updating zoning information associated with the first host by dynamically assigning the first host to the first zone and excluding the second host from the first zone;

computer code for propagating updated zoning information through the fibre channel storage area network.