HP EVA P6550 HP P6300/P6500 EVA User Guide (5697-2486, September 2013) - Page 71

Setting the multipathing policy You can set the multipathing policy for each LUN or logical drive on the SAN to one of the following: • Most recently used (MRU) • Fixed • Round robin To change multipathing policy, use the VMware vSphere GUI interface under the Configuration tab and select Storage. Then select Devices. Figure 22 Setting multipathing policy Use the GUI to change policies, or you can use the following commands from the CLI: ESX 4.x commands • The # esxcli nmp device setpolicy --device naa.6001438002a56f220001100000710000 --psp VMW_PSP_MRU command sets device naa.6001438002a56f220001100000710000 with an MRU multipathing policy. • The # esxcli nmp device setpolicy --device naa.6001438002a56f220001100000710000 --psp VMW_PSP_FIXED command sets device naa.6001438002a56f220001100000710000 with a Fixed multipathing policy. • The # esxcli nmp device setpolicy --device naa.6001438002a56f220001100000710000 --psp VMW_PSP_RR command sets device naa.6001438002a56f220001100000710000 with a RoundRobin multipathing policy. NOTE: Each LUN can be accessed through both EVA storage controllers at the same time; however, each LUN path is optimized through one controller. To optimize performance, if the LUN multipathing policy is Fixed, all servers must use a path to the same controller. VMware 71