a Select the Storage tab.b In the Storage tab navigation pane, select the Disks node.c On the Disks tab, record the number of drives that are accessible by the Storage Center.Compare this value to the number of drives accessible by the Storage Center after adding expansion enclosures to the storagesystem.4 Click the Hardware tab and select the Enclosures node in the Hardware tab navigation pane.5 Click Add Enclosure. The Add New Enclosure wizard starts.a Click Next to validate the existing cabling.b Select the expansion enclosure type and click Next.c If the drives are not installed, install the drives in the expansion enclosures.d Turn on the expansion enclosure. When the drives spin up, make sure that the front panel and power status LEDs show normaloperation.e Click Next.f Add the expansion enclosure to the A-side chain. Click Next to validate the cabling.g Add the expansion enclosure to the B-side chain. Click Next to validate the cabling.h Click Finish.6 To manually manage new unassigned drives:a Click the Storage tab.b In the Storage tab navigation pane, select the Disks node.c Click Manage Unassigned Disks.The Manage Unassigned Disks dialog box opens.d From the Disk Folder drop-down menu, select the drive folder for the unassigned drives.e Select Perform RAID rebalance immediately.f Click OK.7 Label the back-end cables.Add the SCv300 and SCv320 Expansion Enclosures to the A-Side of the ChainConnect the expansion enclosures to one side of the chain at a time to maintain drive availability.1 Cable the expansion enclosures to the A-side of the chain.a Connect a SAS cable from storage controller 1: port 1 to the first expansion enclosure in the chain, top EMM, port 1.b Connect a SAS cable from storage controller 2: port 2 to the last expansion enclosure in the chain, top EMM, port 2.72 Adding or Removing Expansion Enclosures
