Xcellon DRD-101, User Manual

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7
RAID Mode Configuration
You can configure the RAID mode for faster data transfer, more stable data transfer,
independent drive function, and linked drive function.
The default mode is Normal mode.
Before configuring the RAID mode, make sure to back up
your data. All data on the installed disk drives will be deleted
during the configuration process.
!
Make sure that both drives have the same rotational speed (RPM).
It is recommended that both hard drives have the same capacity. If possible, use identical
drives.
RAID 0
RAID 0, or striping mode, provides faster transfers speeds and greater storage performance
than RAID 1 mode by splitting (striping) data across the two disk drives installed in the
enclosure. This mode links the two disk drives installed in the enclosure, so they can function
as a single drive with combined storage space. For example, if you are using two 250 GB
drives, they will combine to function as a single 500 GB drive
RAID 1
RAID 1, or mirroring mode, creates a copy of the data on the second disk drive installed in the
enclosure, so the exact same data is stored on both drives. Data integrity is more reliable in this
mode than in RAID 0 mode, although there is less accessible disk space and the transfer speed
is slower. Only one drive is accessible in RAID 1 mode.
When using RAID 0 and RAID 1 modes, you can use two disk drives of differing capacities,
although the capacity will be limited to the smaller of the two disk drives. For example, if
you are using a 250 GB and a 1 TB drive, then the 1 TB will be limited to the smaller 250 GB
capacity, and the total combined capacity will be 500 GB.