3. Using 0.41m Fiber Channel copper cables, connect the disk enclosures in the third loop:
a. Connect P2 (I/O-A) on S-25 to P1 (I/O-A) on S-26.
b. Connect P2 (I/O-A) on S-26 to P1 (I/O-A) on S-27.
c. Connect P2 (I/O-B) on S-25 to P1 (I/O-B) on S-26.
d. Connect P2 (I/O-B) on S-26 to P1 (I/O-B) on S-27.
4. Connect the rack power distribution units to a power source.
5. Using a power cord provided in your kit, plug one end into a disk enclosure power supply and
the other end into a rack power distribution module. Plug the left power supply into the left module
and the right power supply into the right module.
6. Repeat Step 5 for each disk enclosure in the expansion rack.
7. Power on the rack distribution units.
8. Press and hold the power push button (located at the rear of the disk enclosure) long enough to
power up the disk enclosure.
9. Repeat Step 8 for each disk enclosure in the expansion rack.
Preparing the expansion rack for connection to the main rack
This section contains the preparation steps that must be performed before connecting the expansion
rack and the main rack.
Physically inspect the expansion rack
Physically inspect the expansion rack. Verifying each of the following conditions:
• All enclosures and enclosure modules are properly installed and seated.
• Each power supply is connected to one of the electrical outlets in the rack.
• The end connector of each cable is plugged into a disk enclosure I/O module.
Inspect expansion rack disk drives
After the expansion rack is powered up, ensure that all disk drives are fully engaged and seated in
their associated enclosures. Observe the disk drive status indicators to ensure that the disks are working
properly. The status indicators will be amber or blue depending on the condition of the disk enclosure.
See Figure 20 for the location of the disk drive indicators and Table 3 for a description of the indicators.
Installing disk enclosures into the expansion rack26
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