Dell PowerVault MD3260 Dell PowerVault MD Storage Array VMware vCenter Plug-in - Page 27
ESX/ESXi Host SAN Configuration
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4 ESX/ESXi Host SAN Configuration The MD vCenter Plug-in allows an ESX/ESXi host to be automatically configured to use a Dell MD storage array by detecting the installed Host Bus Adapters (HBAs) within the host and configuring new hosts on the storage array with the Worldwide Names (WWNs) of the HBAs from the host. The default ESX/ESXi multipathing mode for Dell MD storage arrays is Most Recently Used (MRU). To ensure optimum performance for the ESX/ESXi host with more than two HBAs, the host should be configured to use the storage array in pairs of HBAs. This method allows for maximum I/O throughput from the host to the storage array. Using this method requires proper SAN configuration and balancing of LUNs between hosts/host groups. The following figure shows a properly configured two-HBA ESX/ESXi host SAN configuration utilizing two fabric switches and a dual-controller storage array. Figure 20. Dual-Port HBA Configuration Dell MD Storage Array vCenter Plug-in | 27