Switch zoning configurations for the FlashSystem™ system include fabric zoning, target port sharing, host splitting, and controller splitting.
The FlashSystem™ system has no zoning limitations.
The FlashSystem™ systems present themselves by default to a Lenovo Storage V series system as single controllers with a WWPN for each port that is zoned to Lenovo Storage V series. For example, if one of these storage systems has four ports that are zoned to Lenovo Storage V series, the FlashSystem™ appears as a system with four WWPNs. A given logical unit (LU) must be mapped to Lenovo Storage V series through all controller ports that are zoned to Lenovo Storage V series by using the same logical unit number (LUN).
The controller must be separately zoned to Lenovo Storage V series ports for exclusivity requirements.
For robustness, each fabric zone to all the Lenovo Storage V series backend port must contain a FlashSystem™ storage system port from each controller.
The FlashSystem™ storage system can support LUN masking to enable multiple servers to access separate LUNs through a common controller port. Explicit zoning is safest. Otherwise, ensure separate exclusive zoning if you are using the default.
Host splitting can be used. For hosts that connect to Lenovo Storage V series and the controller, Lenovo Storage V series must have sole access to its LUNs. Explicit host connections for LUNs to Lenovo Storage V series are expected to be used in this configuration.
Controller splitting is supported. Lenovo Storage V series does not need exclusive access to the controller. Explicit mapping is required for LUNs to give exclusive use by Lenovo Storage V series. As Lenovo Storage V series cannot detect any other use of the controller, performance might be affected.