Proware Fibre to SAS/SATA RAID Subsystem, User Manual

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Fibre to SAS/SATA RAID Subsystem
User Manual 91
Time to HDD Low Power Idle: (MAID Level 1)
This option enables the Disk Array to place idle HDDs of a Raid Set in Low Power
Mode, where drives’ heads are unloaded. The power consumption of the Idle HDD
saving is around 15% to 20%. Recovery time is under a second.
Options are: Disabled, 2, 3, 4, 5, 6, and 7 (Minutes).
Time to HDD Low RPM Mode: (MAID Level 2)
This option enables the Disk Array to place idle HDDs of a Raid Set in Low RPM Mode,
where drives’ heads are unloaded and drive platters speed is reduced to around 4000
RPM. The power consumption of the Idle HDD saving is from 35% to 45%. Recovery
time is 15 seconds.
Options are: Disabled, 10, 20, 30, 40, 50, and 60 (Minutes).
Time to Spin Down Idle HDD: (MAID Level 3)
This option enables the Disk Array to spin down HDDs of a Raid Set after they become
idle after a preset period of time. In this level, the drives stop spinning and go into
sleep mode. The power consumption of the Idle HDD saving is from 60% to 70%.
Recovery time is 30 to 45 seconds.
Options are: Disabled, 1 (For Test), 3, 5, 10, 15, 20, 30, 40, and 60 (Minutes).
Time To Wait HDD Spin Up
This option allows user to set the host system waiting time for HDD spin up. The
values can be selected from 7 to 120 seconds.
NOTE: To verify if the disk drive you use supports MAID or APM,
select “RaidSet Hierarchy” and click the disk drive (E# Slot#) link.
Check in the Device Information screen if the Disk APM Support
shows “Yes”.