Hydra eSATA System Setup
Page 6
2.2 Replacing Hard Drives
When one of the drives fails, the Error LED will light up red, the alarm will go off and the
corresponding HDD LED (A-D) will be off instead of the normal green. If only one drive is defective
and the RAID mode is set to RAID 1, RAID 5 or RAID 10, the data can still be accessed but we
strongly recommend replacing the faulty drive immediately to assure continued proper backup and
data safety.
If more than one drive at the same time fails or if the RAID mode is set to RAID 0 or JBOD, the
data will be lost and the system can not be accessed again until the drive(s) have been replaced.
In Non-RAID mode, the Error LED will not light up. A faulty hard drive will simply not be detected
anymore, so the corresponding HDD LED (A-D) will remain off until the faulty drive has been
replaced.
1. Check the HDD LED and replace the faulty drive. The normally green LED will be off,
indicating the defective drive. The power does not have to be turned off when replacing the
drive(s).
2. A few seconds after installing the new drive(s) the corresponding LED will light up green.
3. For RAID 1, RAID 5 and RAID 10, the RAID array will be rebuilt automatically. During this
process, the Rebuild LED will light up green. Rebuilding the RAID array will take several
hours, depending on the drive capacity (~60MB/s).
4. For RAID 0 and JBOD, enter the setup menu, go through the RAID mode sequence to
select the correct mode, confirm it and then format the drives again.
5. For Non-RAID, simply format the new drive.
Note
We recommend not turning off the power during the rebuild process but if the process is
interrupted, it will continue rebuilding the data as soon as the power is turned back on.
2.3 Connection to Computer
A few precautions and notes when using your external storage drive:
•
Do not expose the product to water or humid conditions.
•
Do not cover the enclosure’s ventilation holes.
•
Before connecting the device, install the hard drives and set your preferred RAID mode.
•
For the safe removal of your drive and to assure that no data is lost, always follow the correct
unplug procedure for external hardware (e.g.: Eject the drive before removal).
•
In order for the computer to access volumes larger than 2TB, both the hardware and Operating
System need to have the capacity to support large volumes (e.g.: WinVista 32bit/64bit or Mac
OS 10.4 and above).
•
When the computer goes into stand-by mode, the hard drives in the external enclosure will spin
down as well.
