Areca ARC-1110, ARC-1130, ARC-1231ML/1261ML/1280ML, ARC-1120 HDD Read Ahead Cache, Stagger Power On

BIOS CONFIGURATION

be dynamically rescheduled or re-ordered, along with the neces- sary tracking mechanisms for outstanding and completed por- tions of the workload. The SATA RAID controller allows the user to choose the SATA Mode: SATA150, SATA150+NCQ, SATA300, SATA300+NCQ.

3.7.5.7 HDD Read Ahead Cache

Allow Read Ahead (Default: Enabled)—When Enabled, the drive’ s read ahead cache algorithm is used, providing maximum performance under most circumstances.

Controller I/O Port:F3000000h, F2: Select Controller, F10: Reboot System

Areca Technology Corporation RAID Controller

Main MenuRaid System Function
Quick VolMuteme/RaidThe AlertSetupBeeper
	HDD Read Ahead Cache
Raid SetAlertFunctionBeeper Setting
Volume ChangeSet		Enabled
PhysicalJBOD/RAIDDrives		Disable Maxtor
		Function
	Background TaskDisabledPriority
Raid System Function
EthernetMaximumConfigurationSATA Mode
View	HDD Read Ahead Cache

Clear EventStaggerBufferPower on

HardwareEmptyMonitorHDD slot LED

System HDDinformationSMART Status Polling

Controller Fan Detection

Disk Write Cache Mode

Capacity Truncation

ArrowKey Or AZ:Move Cursor, Enter: Select, ESC: Escape, L:Line Draw, X: Redraw

3.7.5.8 Stagger Power On

In a PC system with only one or two drives, the power can sup- ply enough power to spin up both drives simultaneously. But in systems with more than two drives, the startup current from spinning up the drives all at once can overload the power sup- ply, causing damage to the power supply, disk drives and other system components. This damage can be avoided by allowing the host to stagger the spin-up of the drives. New SATA drives have support staggered spin-up capabilities to boost reliability. Staggered spin-up is a very useful feature for managing multiple disk drives in a storage subsystem. It gives the host the abil- ity 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.

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