IBM FAStT500 User Guide - Page 60

Servicing notes, Replacing a failed controller fan, When you handle static-sensitive devices

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Servicing notes Consider the following when servicing the controller fan: • Both fans failing simultaneously in the controller fan is unlikely. Such a failure will cause either one or both controllers to overheat. Under these circumstances, the amber controller light on the front panel might turn on. Shut down the controller unit immediately and let the unit cool to room temperature and then replace the controller fan. • You can hot swap, or replace, the controller fan, as long as you complete the exchange within 15 minutes. The time limit applies to the total time that the fan is out of the chassis. The time begins when you remove the failed controller fan and ends when you install the new one. This does not include the time it takes to perform the entire procedure (for example, checking the indicator lights). • If a controller fan fails, the fault light on the controller fan glows. For more information about indicator lights, see "Checking the indicator lights" on page 15. • If you replace the controller fan and still experience problems, the controller unit might have defective components or connections. Check the storage-management software for indications of other component failures. Replacing a failed controller fan When instructed by the storage-management software, replace a controller fan. Attention: When you handle static-sensitive devices, take precautions to avoid damage from static electricity. For details about handling static-sensitive devices, refer to "Handling static-sensitive devices" on page 29. 1 Unpack the new controller fan. 2 Remove the controller unit bezel, as shown in Figure 6 on page 11. Attention: To prevent damage to the controller unit components, do not operate the controller unit without adequate ventilation to the controllers. If it will take longer than 15 minutes to replace the controller fan, you must shut down the controller unit to prevent it from overheating. The time limit applies to the total time that the fan is out of the chassis. For more information, see "Turning off the power" on page 13. 40 IBM FAStT500 RAID Controller Enclosure Unit User's Guide

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40
IBM FAStT500 RAID Controller Enclosure Unit User’s Guide
Servicing notes
Consider the following when servicing the controller fan:
•
Both fans failing simultaneously in the controller fan is unlikely. Such a failure will
cause either one or both controllers to overheat. Under these circumstances, the amber
controller light on the front panel might turn on. Shut down the controller unit
immediately and let the unit cool to room temperature and then replace the controller
fan.
•
You can
hot swap
, or replace, the controller fan, as long as you complete the exchange
within 15 minutes. The time limit applies to the total time that the fan is out of the
chassis. The time begins when you remove the failed controller fan and ends when you
install the new one. This does not include the time it takes to perform the entire
procedure (for example, checking the indicator lights).
•
If a controller fan fails, the fault light on the controller fan glows. For more information
about indicator lights, see
"Checking the indicator lights" on page 15
.
•
If you replace the controller fan and still experience problems, the controller unit might
have defective components or connections. Check the storage-management software
for indications of other component failures.
Replacing a failed controller fan
When instructed by the storage-management software, replace a controller fan.
Attention:
When you handle static-sensitive devices, take precautions to avoid damage
from static electricity. For details about handling static-sensitive devices,
refer to
"Handling static-sensitive devices" on page 29
.
1
Unpack the new controller fan.
2
Remove the controller unit bezel, as shown in
Figure 6 on page 11
.
Attention:
To prevent damage to the controller unit components, do not operate the
controller unit without adequate ventilation to the controllers. If it will take
longer than 15 minutes to replace the controller fan, you must shut down the
controller unit to prevent it from overheating. The time limit applies to the
total time that the fan is out of the chassis. For more information, see
"Turning off the power" on page 13
.