User manual

BIOS CONFIGURATION
86
3.7.5.15 Capacity Truncation
SATA RAID controller use drive truncation so that drives from
differing vendors are more likely to be able to be used as spares
for each other. Drive truncation slightly decreases the usable
capacity of a drive that is used in redundant units.
The controller provides three truncation modes in the system
conguration: “Multiples Of 10G”, “Multiples Of 1G”, and “No
Truncation”.
Multiples Of 10G: If you have 120 GB drives from different
vendors; chances are that the capacity varies slightly. For
example, one drive might be 123.5 GB, and the other 120 GB.
“Multiples Of 10G” truncates the number under tens. This makes
the same capacity for both of these drives so that one could
replace the other.
Multiples Of 1G: If you have 123 GB drives from different
vendors; chances are that the capacity varies slightly. For
example, one drive might be 123.5 GB, and the other 123.4 GB.
“Multiples Of 1G” truncates the fractional part. This makes the
same capacity for both of these drives so that one could replace
the other.
No Truncation: It does not truncate the capacity.
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
Capacity Truncation
Truncate Disk Capacity
To Multiples of 10G
To Multiples of 1G
No Truncation
To Multiples of 1G