This section describes how to configure ALUA for a host.
Procedure
- Choose Resources > Access > Host > Host.
- Select a desired account from the Account drop-down list in the upper left corner.
- Select the host to be configured with ALUA and click Configure ALUA.
The Configure ALUA page is displayed.
- Select the switchover mode and path type of the host. The system supports two path switchover modes: Enable ALUA and Disable ALUA.
- ALUA is a model that supports access to multiple target ports. In the multipathing state, the ALUA mode presents active/passive volumes to the host and provides a port access status switchover interface to switch over the working controllers for volumes. For example, when a volume of a controller fails, you can set the status of ports on the controller to unavailable. After the host multipathing software that supports ALUA detects the status, it switches subsequent I/Os from the failed controller to the peer controller.
- In non-HyperMetro scenarios, the storage system is in active/active mode. You are advised to set Switchover Mode to Disable ALUA.
- In HyperMetro scenarios, if both sites provide services at the same time, you are advised to set Switchover Mode to Disable ALUA.
- In HyperMetro scenarios, if only one site provides services, you are advised to set Switchover Mode to Enable ALUA for the site that provides services.
- Click OK.
- Confirm your operation as prompted.