Infortrend S12 Series Hardware Manual page 55

EonStor / EonStor DS S12/S16/S24 Series
NOTE
If you use a dual-controller RAID system and prefer using SATA hard drives in the
enclosure or in the attached JBODs, make sure you also purchase MUX kits.
MUX Board:
Shown below, controller A (1) and controller B (2) is connected to the backplane (3).
With a MUX board (4) paired to the hard drive (5), data signals is able to switch
between controllers A and B signal ports (indicated by the blue arrow / dotted line).
Under normal circumstances, controller B signal port is in standby mode (6).
1 1
2
1 1
2
3
6
MUX Kit Port Selector Mechanism
55
5
4
5