Hardware Installation 158 After the PowerVault MD1200 series expansion enclosure is configured asan expansion enclosure of the storage array, restore the data that wasbacked up in step 1.After the PowerVault MD1200 series expansion enclosures are online, theycan be accessed as a part of the storage array.Expanding With New PowerVault MD1200 Series Expansion EnclosuresPerform the following steps to attach new PowerVault MD1200 seriesexpansion enclosures to a PowerVault MD3600f series storage array:NOTE: Before adding the expansion enclosure(s), ensure that the storage arraysoftware is installed and up to date. For more information, see theSupport Matrix atsupport.dell.com/manuals.1 Install the software and driver package included on the PowerVaultMD3600f series resource media. For information about installing thesoftware, see "Software Installation" on page 17.2 Set up the MD1200 series expansion enclosure(s). For information aboutsetting up the MD1200 series expansion enclosure(s), see the HardwareOwner’s Manual at support.dell.com/manuals.3 Using MDSM, update the RAID controller module firmware andNVSRAM to the latest versions available on support.dell.com. From theEnterprise Management Window (EMW), click Tools Upgrade RAIDController Module Firmware.4 Stop I/O and turn off the solution:a Stop all I/O to the storage array and turn off affected host systemsattached to the storage array.b Turn off the storage array.c Turn off any expansion enclosure(s) in the affected system.5 Cable the expansion enclosure(s) to the storage array.6 Turn on the solution:a Turn on the expansion enclosure(s). Wait for the enclosure statusLED to light blue.b Turn on the storage array and wait for the status LED to indicate thatthe unit is ready: