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Configuring the Port Multiplier Using Dipswitches
Resetting the RAID
NOTE: This procedure destroys all RAID data. It should not harm individual drives
or their contents; however, creating backups of all data is strongly recommended
before proceeding.
Be sure the port multiplier is connected to an active host before proceeding. The
port multiplier will not complete the process if it has no host connection.
1. Power down the unit and set the dip switch to the desired RAID Mode.
2. While holding the SET button, turn the unit on. A long beep will sound from the
Port Multiplier. The SET button may be released once the long beep starts.
Shortly after releasing the SET button, the port multiplier should “chirp” to indicate
the process is complete. If instead of a chirp the Port Multiplier sounds a series of
short beeps, an error has occurred during the process.
Setting or Modifying the RAID Mode
NOTE: Setting or modifying the RAID mode destroys all data.
Be sure the port multiplier is connected to an active host before proceeding. The
port multiplier will not complete the process if it has no host connection.
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 starts.
Shortly afterward, the port multiplier should “chirp” to indicate the process is
complete. If instead of a chirp the Port Multiplier sounds a series of short beeps, an
error has occurred during configuration of the array.
BZS Switch (SW1:1):
The BZS switch is used to silence the audible alarm buzzer. The OFF position
permits the audible alarm, and the ON position silences the audible alarm. The
BZS switch has immediate effect.
EZ Switch (SW1:2):
The EZ (spare) switch inhibits spares when ON. When in the OFF position, all
individual drives (not defined as members of an array) are considered spare and
are not offered to the operating system. Should a RAID become degraded, when
the EZ switch is in the OFF position a spare drive will be used automatically to
rebuild the RAID, if present. EZ mode is determined when the unit is powered up.
Changing the switch will have no effect until the unit has been re-powered.
Warning: turning off the EZ switch to rebuild an array will consider any drives not
declared array members to be eligible for rebuild as a spare. Rebuilding will
destroy all existing data on that drive and the drive chosen is not predictable.
Disconnect any individual drives with valuable data on them before enabling EZ
Mode.