Switch
Ensure that the switches are functioning properly and their ports have the necessary licenses and transmit data normally. Refer to the switch vendor's documentation for details on how to check functionality and license status for the switches in your environment.
Storage System
Create disk domains, storage pools, LUNs, hosts, and mapping views on the storage system according to your service requirements. For details about these operations, see the Basic Storage Service Configuration Guide corresponding to your storage system
Host
Before connecting a host to a storage system, you need to start the ESXi Shell and SSH services and make sure that the host HBAs have been identified and are functioning properly. You also need to obtain the world wide names (WWNs) of HBA ports for subsequent storage system configurations.
and detail you can check the link:
http://support.huawei.com/enterprise/en/doc/EDOC1000144883