StarTech.com S352BU33RER Quick Start - 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/Spanning – 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 – Striping
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.
LED Indicators
The hard drive enclosure offers LED indicators for each drive so you can monitor drive
activity and the health of your RAID array. 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.
For a detailed explanation of all LED activity, please download the full product
manual at StarTech.com