FAQ-What is the disk spin-down technology? How can a spun-down RAID group be spun up again

Publication Date:  2015-07-24 Views:  342 Downloads:  0
Issue Description
What is the disk spin-down technology? How can a spun-down RAID group be spun up again?

Solution
The disk spin-down technology sets the hard disks that are free of I/O operations to sleep mode by software control. Then the disk motors and heads stop rotating, but the power supply to the disks remains normal.

You can spin up the spun-down disks by either of the following two methods:
  • Send I/O requests to the spun-down disks.
  • On the ISM, disable the spin-down function for the desired RAID group.
  1. On the ISM, choose Storage Resources > RAID Groups.
  2. In the function pane, select the RAID group, and choose Advanced > Set Spin-down. The Set Spin-down dialog box is displayed.
  3. Select Forbidden.

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