Installation guide

Chapter 5. McBIOS & Terminal Configuration
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spin-up capabilities to boost reliability. Stagger spin-up is a very useful feature
for managing multiple disk drives in a storage subsystem. It gives the host the
ability to spin up the disk drives sequentially or in groups, allowing the drives to
come ready at the optimum time without straining the system power supply.
Staggering drive spin-up in a multiple drive environment also avoids the extra
cost of a power supply designed to meet short-term startup power demand as
well as steady state conditions.
RAID controller has included the option for customer to select the disk drives
sequentially stagger power up value. The values can be selected from 0.4ms to
6ms per step which powers up one drive.
5.5.6.2 Time to Hdd Low Power Idle (Minutes)
This option delivers lower power consumption by automatically unloading
recording heads during the setting idle time.
5.5.6.3 Time to Hdd Low RPM Mode (Minutes)
This function can automatically spin disks at lower RPM if there have not been
used during the setting idle time.
5.5.6.4 Time to Spin Down Idle HDD (Minutes)
This function can automatically spin down the drive if it hasn't been accessed for
a certain amount of time. This value is used by the drive to determine how long
to wait (with no disk activity, before turning off the spindle motor to save power.)
5.5.7 Fiber Channel Config (only for FC)
To set the Fiber channel config function, move the cursor bar to the main menu
and select the Fiber Channel Config item and then press Enter key. The Fiber
Channel Configuration menu will show all items. Move the cursor bar to an item,
then press Enter key to select the desired function.