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3ware® CLI Guide > CLI Syntax Reference > Controller Object Commands > /cx set spinup=nn

/cx set spinup=nn
This command is only for 9000 series controllers.
This command allows you to set a controller-based Disk Spinup Policy that specifies how many drives can spin up at one time. The value must be a positive integer between 1 and the number of disks/ports supported on the controller (4, 8, or 12). The default is 1.
This policy is used to stagger spinups of disks at boot time in order to spread the power consumption on the power supply. For example, given a spinup policy of 2, the controller will spin up two disks at a time, pause, and then spin up another 2 disks. The amount of time to pause can be specified with the Spinup Stagger Time Policy (/cx set stagger).
Not all drives support staggered spinup. If you enable staggered spinup and have drives that do not support it, the setting will be ignored.

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