Attention: Do not operate the system when the drive assemblies are missing.
Drive assemblies that are missing disrupt the airflow; the drives do not receive
sufficient cooling. You must insert blank carriers into unused drive bays.
Powering on an expansion enclosure:
1. Power on the enclosures if they are not already on. Use the power switch on
each of the two power supply units in the back of the expansion enclosure.
2. Use the information in Table 49 on page 102 to verify the state of the light
emitting diodes (LEDs) on the system. Verify that no faults are detected. See the
Storwize V7000 Unified Problem Determination Guide book or PDF on the CD,
Information Center, or refer to the Troubleshooting section of the Storwize
V7000 Unified Information center if problems are encountered.
Both Figure 59 andFigure 60 show the location of the LEDs on the power supply
units, located at the front of the expansion enclosure.Figure 61 on page 102 shows
the location of the LEDs on the power supply units, located at the rear of the
expansion enclosure. The LEDs are located at position î1î.
Table 48. LED status front of control enclosure or expansion enclosure. Refers to item [1] in
the figures above.
Hardware component LED name and symbol
If power on and no fault is
detected
Left enclosure end cap, front
of enclosure
Power, top
LED is on.
Fault, middle
LED is off.
Identify, bottom
LED is off.
svc00693
1 2 2
3
Figure 59. 24 drives and two end caps
svc00694
1
2
3
Figure 60. 12 drives and two end caps
Chapter 5. Performing the hardware installation 101
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