User manual

BIOS CONFIGURATION
81
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
ArrowKey Or AZ:Move Cursor, Enter: Select, ESC: Escape, L:Line Draw, X: Redraw
Areca Technology Corporation RAID Controller
Main Menu
Quick Volume/Raid Setup
Raid Set Function
Volume Set Function
Physical Drives
Raid System Function
Hdd Power Management
Ethernet Conguration
View System Events
Clear Event Buffer
Hardware Monitor
System information
Raid System Function
Raid System Function
Mute The Alert Beeper
Alert Beeper Setting
Change Password
JBOD/RAID Function
Background Task Priority
Maximum SATA Mode
HDD Read Aead Cache
Volume Data Read Ahead
Empty HDD slot LED
HDD SMART Status Polling
Controller Fan Detection
LED Polarity Setting
Auto Activate Raid Set
Disk Write Cache Mode
Capacity Truncation
HDD Read Ahead Cache
HDD Read Ahead Cache
Enabled
Disable Maxtor
Disabled
Enabled
3.7.5.8 Volume Data Read Ahead
The volume read data ahead parameter species the controller
rmware algorithms which process the Read Ahead data blocks
from the disk. The Read Ahead parameter is normal by default.
To modify the value, you must set it from the command line
using the Read Ahead option. The default normal option satises
the performance requirements for a typical volume. The disabled
value implies no read ahead. The most efcient value for the
controllers depends on your application. Aggressive read ahead
is optimal for sequential access but it degrades random access.