Galaxy GHDXS2-1430R-16F4D Installation and Hardware Reference Manual
1-6
Major Subsystem Components
The subsystems are housed in an enclosure that is 4 bays wide and 4 bays
high. When viewing from the front, drive bay IDs are numbered from Slot 1
to Slot 16 (see
Figure 1-5
), from left to right, and then from top to bottom.
TIPS:
Tray numbering sequence is important if one disk drive fails and
needs to be replaced. Replacing a wrong drive can fatally fail a
RAID3/5 array. Failing three drives destroys a RAID6 array.
Figure 1-5: RAID Drive Bay Numbering Sequence
1.3.3 MUX Kit
Figure 1-6: MUX Kit
P/N:
GAL-9273S1N2S1S (MUX kit)
GAL-9273S1DT2S1S (Drive tray with a pre-installed MUX kit)
The MUX kit enables partner RAID controllers to access individual SATA-
II hard drives in a dual-controller configuration. Because of the relatively
high price of the emerging SAS drives, SATA-II disk drives may be a more
popular choice for the moment. As the result, a MUX kit is attached to
every drive tray as the default configuration of the dual-controller model.
The MUX kits are equipped with active-active port selectors to facilitate
SATA drive installation and access from dual-active RAID controllers.
When installed into the enclosure, the SAS connectors on the other end of
the MUX kits will mate with the corresponding connectors on the backplane
board.