RAID Central: Learn About RAID-1 (RAID Mirror)

OWC RAID Central

RAID 1 "Mirror" – Safe/Redundant Storage

Perfect For

Photographers and musicians, but also for anyone needing a safe, protected place to store their important data.

Store music, photos, videos
Anything that takes time to create
Anything that is difficult to replace

Protection

As the data moves onto the array, it is simultaneously copied to both drives at the same time giving you two copies.
In the event one of the drives fails, the other still holds the data intact and allows you to keep working.
- Once the failed drive is replaced, the array will rebuild to give protection once again.
The usable capacity of the RAID 1 array is equal to the capacity of one drive.

Learn More About the Types of RAID

RAID Concepts 101
Host Controller Types
Advanced Features

Definitions:
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RAID 0 (Stripe)

Data is split into blocks over two or more drives at same time for high speed and large capacity.

Capacity

Data Safety

Performance

Learn About RAID 0

RAID 1 (Mirror)

Data is written at same time to two drives only for highest level of data safety and redundancy.

Capacity

Data Safety

Performance

Learn About RAID 1

RAID 10 (1+0)

Data is Striped (RAID 0) over two Mirrored sets (RAID 1) of drives for fast redundancy.

Capacity

Data Safety

Performance

Learn About RAID 10

RAID 5 (Stripe with Parity)

Data is Striped (RAID 0) while incorporating parity over three or more drives for the best combination of speed, capacity, and redundancy.

Capacity

Data Safety

Performance

Learn About RAID 5

JBOD

(Just a Bunch Of Disks/Drives)

Each disk shows up as an individual logical volume on the computer. A 4 bay unit populated with drives will have 4 logical drives show up on the computer.

Capacity

Data Safety

Performance

Learn About JBOD

Span (N-RAID)

Combines capacity of two or more drives of varying size without any RAID data distribution scheme into one logical desktop volume.

Capacity

Data Safety

Performance

Learn About Span/N-RAID