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Path Failover (previously Native Storage Networking or nSNW) is a set of features that increase control path and data path availability. Advanced path failover supports multiple FC fabrics and requires a specific Quantum driver installed on host computers. Path failover supports library control path and/or data path failover.
When a path failover license is added to the library, the second FC port on one drive is enabled. The second port is needed for data path failover but is not necessary for control path failover. The control path fails over to the second port on a drive and then to another drive that is configured for CPF. If a customer is interested in minimizing the ports used on their FC switches, the second port on the drives do not need to be used. In this case, the failover would go directly from the primary drive to the failover drive.
When a path failover license is added to the library, the second FC port on one drive is enabled. The second port is needed for data path failover but is not necessary for control path failover. The control path fails over to the second port on a drive and then to another drive that is configured for CPF. If a customer is interested in minimizing the ports used on their FC switches, the second port on the drives do not need to be used. In this case, the failover would go directly from the primary drive to the failover drive.
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0.2 lbs
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43233415
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