15 capacity truncation, Bios configuration – Areca 24/4 Internal/External Port Pcie 3.0 12 Gb/s SAS/SATA Raid Controller 2Gb Cache User Manual

Page 93

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BIOS CONFIGURATION

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3.7.5.15 Capacity Truncation

Areca RAID controllers use drive truncation so that drives from

different vendors are more likely to be usable as spares for one

another. Drive truncation slightly decreases the usable capac-

ity of a drive that is used in redundant units. The controller

provides three truncation modes in the system configuration:

Multiples Of 10G, Multiples Of 1G and Disabled

.

Multiples Of 10G:

If you have 120 GB drives from different

vendors; chances are that the capacity varies slightly. For exam

-

ple, one drive might be 123.5 GB, and the other 120 GB. “Mul-

tiples Of 10G” truncates the number under tens. This makes the

same capacity for both of these drives so that one could replace

the other.

I/O Port Addr : 28000000h, F2(Tab): 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

More System Functions

Hdd Power Management

Ethernet Configuration

Alert By Mail Config

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

SATA NCQ Support

HDD Read Ahead Cache

Volume Data Read Ahead

Hdd Queue Depth Setting

Empty HDD Slot LED

Controller Fan Detection

Auto Activate Raid Set

Disk Write Cache Mode

Write Same Support

Capacity Truncation

Truncate Disk Capacity

To Multiples of 10G

To Multiples of 1G

Disabled

To Multiples of 1G

Capacity Truncation

I/O Port Addr : 28000000h, F2(Tab): 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

More System Functions

Hdd Power Management

Ethernet Configuration

Alert By Mail Config

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

SATA NCQ Support

HDD Read Ahead Cache

Volume Data Read Ahead

Hdd Queue Depth Setting

Empty HDD Slot LED

Controller Fan Detection

Auto Activate Raid Set

Disk Write Cache Mode

Write Same Support

Capacity Truncation

Write Same Support

Write Same Support

SAS And SATA

SAS Only

SATA Only

Disabled

SAS Only

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