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TR-004 User Guide
RAID Type
Number of Disks
Description
RAID 0
2 or more
• Disks are combined together using striping.
• RAID 0 offers the fastest read/write speeds and
uses the total capacity of all the disks.
• RAID 0 provides no disk failure protection. This
RAID type must be paired with a data backup
plan.
• RAID 0 is recommended for high performance
applications such as video editing.
RAID 1
2
• An identical copy of data is stored on two disks. If
either disk fails, data can still be read from the
other disk.
• Half of the total disk capacity is lost, in return for
a high level of data protection.
• RAID 1 is recommended if you have two disks.
Important
Deleting a RAID 1 group does not format
the drives.
RAID 5
3 or more
• Data and parity information are striped across all
disks.
• The capacity of one disk is lost for parity. This
means that if any one disk fails, it can be
replaced and the data on it can be restored.
• Striping means read speeds are increased with
each additional disk.
• RAID 5 is recommended for a good balance
between data protection and speed.
RAID 10
4
• Every two disks are paired using RAID 1 for
failure protection. Then the pairs are striped
together using RAID 0.
• RAID 10 provides excellent random read/write
speeds and high failure protection, but half the
total disk capacity is lost.
• RAID 10 is recommended for application or
database storage.
Storage Modes
The RAID enclosure supports different storage modes for NAS devices and computers.
RAID Configuration 22