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Resetting the RAID Mode
NOTE: This procedure destroys all RAID data. It should not harm individual
drives or their contents; however, creating or running backups of all data is
strongly recommended before proceeding.
1. Power down the unit and set the dip switch to the factory default setting (all
switches OFF).
2. While holding the SET button with a ballpoint pen, turn the unit on. A long
beep will sound from the Port Multiplier. The SET button may be released
once the long beep stops.
Setting or Modifying the RAID Mode
NOTE: Setting or modifying the RAID mode destroys all data.
1. Follow the procedure for resetting the RAID Mode.
2. Power down the unit and set the dip switch to the desired RAID Mode.
3. While holding the SET button with a ballpoint pen, turn the unit on. A long
beep will sound from the Port Multiplier. The SET button may be released
once the long beep stops.
If instead of a long beep the Port Multiplier sounds a series of short beeps, an
error has occurred during configuration of the array.
Windows users may install the JMicron HW RAID Manager application
located on the SATA Controller CD. In the CD, browse to Configuration
Utilities → JMB393. The JMicron HW RAID Manager can be used to create,
modify, and monitor the health status of the RAID drives, and provide status
alerts. When configuring the RAID mode using the RAID Manager application,
it is strongly recommended to leave the dip switch in the factory default
setting.
Using identical drives for all settings other than JBOD or LARGE is strongly
recommended. Creating a LARGE array using drives that have different
properties will use all space on all members, and performance will match that
of the member in use during any particular I/O operation. Creating a RAID
using drives that are not all the same size will result in all members using only
as much space as the smallest member. Creating a RAID using drives that
have different performance will degrade the overall performance of the array.