User`s guide

28 007-4834-001
3: Operating Storage Enclosures
In the expansion enclosures, the overtemp indicator on the environmental status module
illuminates if the temperature reaches 40
º
C (104
º
F). If both power supplies shut down,
the overtemp indicator cannot come on. See Figure 3-3 on page 34 for the location of the
overtemp indicators on expansion enclosures.
The controller enclosure does not have an overtemp indicator. Check the storage
management software for temperature information about the controller enclosures.
Turning the Power On after an Overtemp Shutdown
To restart the enclosure after an unexpected shutdown due to an overtemp condition,
follow these steps:
1. Turn off both power switches (see Figure 3-1 on page 26).
2. Do whatever is necessary to cool the enclosure (replace the fans, use external fans to
cool the room, and so on).
Danger: Severe electrical shock can occur. Never turn on the power to any
equipment when there is evidence of fire, water, or structural damage. If there is
evidence of damage, call the factory or appropriate service organization for
assistance. Depending on the current service agreements, you may need to send
the unit back to the factory for repair/replacement.
3. Check all components and cables for visible damage. Do not power on the enclosure
if you find evidence of damage.
Note: To speed drive spin-up, it is recommended that you start the expansion
enclosures before or at the same time as the controller enclosure.
4. Once the internal temperature is below 40
º
C (104
º
F), turn on the power switches
and wait for the enclosure to power on.
5. Use TPSSM and the drive fault indicators (see “Checking the Indicator Lights” on
page 32) to check the overall status of the enclosure and its components. Repair any
faults found.