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3ware® CLI Guide > CLI Syntax Reference > Controller Object Commands > /cx rescan [noscan]

/cx rescan [noscan]
This command instructs the controller to rescan all ports, vports, and phys and reconstitute all units. The controller will update its list of disks, and attempts to read every DCB (Disk Configuration Block) in order to re-assemble its view and awareness of logical units. Any newly found unit(s) or drive(s) will be listed.
noscan is used to not inform the operating system of the unit discovery. The default is to inform the operating system.
 
Note: If you are adding new drives, add them physically before issuing the rescan commands. Hot swap bays are required unless you first power-down the system to prevent system hangs and electrical damage.
Example:
 //localhost> /c1 rescan
 Rescanning controller /c1 for units and drives ...Done
 Found following unit(s): [/c1/u3]
 Found following drive(s): [/c1/p7, /c1/p8]

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