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Nathaniel Cooper Oct 25, 2019 3:55:33 PM < 1 min read

How does zoning work in SAN?

Zoning in a SAN is a used to segment traffic between targets and initiators, or less formally workstations and storage.  Zoning is generally used for security or performance benefits.

Zoning can be set up through software, referred to as Soft Zoning or it can be set up through hardware, referred to as Hard Zoning.

Soft zoning can be used if you want zones to be able to overlap, as in 'Workstation X' should be in Zone 1 and Zone 2.  This flexibility can be nice depending on application and is often based on the World Wide Name (WWN) of the Host Bus Adapter (HBA), which is the PCIe interface for fibre channel connectivity.

Hard zoning does not allow for zones to overlap.  So in the example above 'Workstation X' would need to be in Zone 1 or Zone 2, but could not be in both.


Nathaniel Cooper

As Chief Operating Officer of ProMAX Systems, Nathaniel Cooper, runs ProMAX Systems day to day operations. Cooper has been working with Storage, Backup and Media Management for video and creative professionals since 2001. Cooper has lead the design and deployment of some of the largest media systems in the world including a range of customers from NFL, MLB & NBA teams, US Military operations, and many of the worlds largest PR agencies and consumer brands. Cooper has spent the last 9 years as part of the ProMAX team and specializes in translating complex technical issues and options into easily understandable concepts.