Now that the video adapter has been installed, we can continue with the final
connections on our drive array. The SATA data cable is a smaller format connector
than the SATA power cable, and each drive requires its own cable for the
point-to-point connection. The cable connector is keyed so it can only be
mated in the correct orientation.
Figure 54: Connecting an SATA data cable to the hard drive
There are four Serial ATA connection points on our motherboard, which also
support RAID 0 and RAID 1 configurations. RAID 0 supports drive striping,
which increases the overall array performance by working the drives in parallel,
and RAID 1 mirrors the drives, making an exact copy for data redundancy.
Both applications require a pair of identical drives. The motherboard SATA
connection is also keyed for proper mating.
Figure 55: Connecting the SATA cable to the motherboard
Our second drive in the array is connected the same as the first, though
we had to be careful not to stress the edge connector on the drive due to
physical interference from the video adapter. The edge connector can be damaged
by excessive force, so you need to be a little careful working around any
SATA connectors. The other end of the cable is attached to another SATA connector
on the motherboard.
Figure 56: Connecting the second SATA data cable
You can see from the following picture that cable manufacturers tend to err
on the side of making SATA cables too long. Keeping in mind the somewhat
fragile edge connectors, we cable-tied the slack to keep it from creating
a pulling hazard. The finger at the bottom of the picture is point to a white
latch on a DIMM socket. The long video adapter obstructs the latches so that
no memory can be installed or removed with the video adapter in place.
Figure 57: Bundling the SATA data cables
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