Switch zoning for NetApp E-Series storage systems

Switch zoning configurations for the NetApp E-Series system include fabric zoning, target port sharing, host splitting, and controller splitting.

The NetApp E-Series system has no zoning limitations.

The NetApp E-Series systems present themselves by default to a SAN Volume Controller system as a single WWNN system with a WWPN for each port zoned to SAN Volume Controller. For example, if one of these storage systems has four ports that are zoned to SAN Volume Controller, each port appears as a controller with four WWPNs. A given logical unit (LU) must be mapped to SAN Volume Controller through all controller ports that are zoned to SAN Volume Controller by using the same logical unit number (LUN).

The controller must be separately zoned to SAN Volume Controller ports for exclusivity requirements.

Fabric zoning

For robustness, dual fabrics is the minimum requirement.

Zone controllers individually. SAN Volume Controller must have unique access to the LUNs.

Also, for robustness the NetApp E-Series controller fabric zone contains all the SAN Volume Controller ports and at least one port from each of the NetApp E-Series storage systems controllers.

Target port sharing

The NetApp E-Series storage system supports LUN masking to enable multiple servers to access separate LUNs through a common controller port. To guarantee the necessary unique LUN access, use explicit masking with SAN Volume Controller.

Host splitting

Host splitting can be used. With hosts that connect to SAN Volume Controller and the controller, SAN Volume Controller must have sole access to its LUNs. There might be MPIO interaction considerations. For details about the supported host multipathing, see the following site:

www.ibm.com/support

Controller splitting

Controller splitting is supported. SAN Volume Controller does not need exclusive access to the controller. Explicit mapping is required for LUN exclusive use by SAN Volume Controller.

As SAN Volume Controller is not aware of any other use of the controller, performance might be affected.