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Instruction Manual
7
Available RAID Congurations
The S352BU33RER enclosure supports 4 dierent RAID congurations. 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 benets for each available RAID conguration are listed below:
Normal - JBOD
In JBOD, no RAID conguration 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 conguration enables you to create a larger volume than would be
available using a single drive without the performance increase oered 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 oers LED indicators for each drive so you can monitor drive
activity and the health of your RAID array. The LED will ash while the hard drive is
being accessed. Do not remove the enclosure from the host computer while the LED is
ashing, 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