StarTech.com S352BU33RER Manual - Manual (Page 10)

Instruction Manual
7
Available RAID Configurations
The S352BU33RER enclosure supports 4 different RAID configurations. RAID is a
storage technology that combines multiple hard drives into a single unit for secure
data redundancy, increased volume size and/or improved performance.
Descriptions and benefits for each available RAID configuration are listed below:
Normal - JBOD
In JBOD, no RAID configuration is set and both drives appear as individual disks.
Note: For both drives to be detected while connected via eSATA the host controller must
support SATA Port Multiplier.
BIG – Combine
In BIG, both drives appear together as a larger individual disk the size of both drives
combined. This configuration enables you to create a larger volume than would be
available using a single drive without the performance increase offered with RAID 0.
RAID1 – Mirroring
In RAID1 both drives appear as a single disk and data is written identically to both. This
level protects your data from individual drive failure as a backup of all data is written
instantly.
RAID0 – Spanning
In RAID0 both drives appear together as a larger single disk the size of both drives
combined. This level can improve your performance as read and write operations are
performed in parallel on separate disks.
How to Use
Connecting the Hard Drive
Once the enclosure has been attached to a computer, and powered on, your computer
system will automatically recognize the drive(s) and it will be accessible as though it
were installed in the system internally.
Note: If your computer fails to automatically recognize your drive it is likely your
drive has not been initialized or formatted correctly. (See Drive Initialization below for
further instructions.)
LED Indicator
The hard drive enclosure offers LED indicators for each drive, so you can monitor drive
activity. The LED will flash while the hard drive is being accessed. Do not remove the
enclosure from the host computer while the LED is flashing, as it could damage the
drive or the enclosure, resulting in data loss.