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Dual-Controller Expansion Connection
• RAID system top left SAS exp. IN -> 1st JBOD top SAS exp. OUT
• RAID system top right SAS exp. IN -> 2nd JBOD top SAS exp. OUT
• 1
st
JBOD top SAS exp. IN –> 3
rd
JBOD top SAS exp. OUT
• 2
nd
JBOD top SAS exp. IN –> 4
th
JBOD top SAS exp. OUT
• 2
nd
last JBOD bottom SAS exp. OUT -> Bottom RAID left SAS exp. IN
• Last JBOD bottom SAS exp. OUT -> Bottom RAID right SAS exp. IN
JBOD 1
JBOD 3
JBOD 2
JBOD 5
JBOD 4
Last JBOD
IN IN
OUTIN
NOTE
To ensure redundancy, Dual-Controller SAS expansion must be connected to the
opposite ends of daisy-chained JBODs (e.g. first JBOD and last JBOD).