Hardware Installation 23Cabling PowerVault MD1200 Series ExpansionEnclosuresYou can expand the capacity of your PowerVault MD3200i series storage arrayby adding PowerVault MD1200 series expansion enclosures. You can expandthe physical disk pool to a maximum of 120 (or 192, if enabled usingPremium Feature activation) physical disks using a maximum of sevenexpansion enclosures.Expanding With Previously Configured PowerVault MD1200 SeriesExpansion EnclosuresUse this procedure if your expansion enclosure is directly attached to andconfigured on a Dell PowerEdge RAID Controller (PERC)H800 adapter. Datafrom virtual disks created on a PERC H800 adapter cannot be directlymigrated to a PowerVault MD3200i series storage array or to a PowerVaultMD1200 series expansion enclosure connected to a PowerVault MD3200iseries storage array.CAUTION: If a PowerVault MD1200 series expansion enclosure that waspreviously attached to PERC H800 adapter is used as an expansion enclosure to aPowerVault MD3200i series storage array, the physical disks of the expansionenclosure are reinitialized and data is lost. You must backup all data on theexpansion enclosure before attempting the expansion.To attach previously configured PowerVault MD1200 series expansionenclosures to the PowerVault MD3200i series storage array:1 Back up all data on the expansion enclosure(s).2 While the enclosure is still attached to the PERC H800 controller,upgrade the expansion enclosure firmware to the latest version availableat support.dell.com.Windows systems users can reference the DUP.exe package and Linuxkernel users can reference the DUP.bin package.3 Ensure that the storage array software is installed and up to date beforeadding the expansion enclosure(s).For more information, see the Support Matrix atsupport.dell.com/manuals.