Filter
Top Products
9. Check the battery LEDs (see “Battery unit LEDs” on page 131).
Note:
If the Full Charge-A and the Full Charge-B LEDs are blinking, the
battery is in the process of charging.
10. After your battery has completed the self test, reset the battery installation date
using the storage-management software. The software continues to issue
battery-related errors if the installation date is not reset.
Replacing a storage subsystem fan
Attention: Before you replace a storage subsystem fan, consider the following
factors:
v The storage subsystem fan and the fan and communications module cooling
system failing simultaneously in the storage subsystem is unlikely. Such a failure
will cause either one or both controllers to overheat. Under these circumstances,
the amber controller LED on the front panel might be lit. If this occurs, shut down
the DS4500 Storage Subsystem immediately and let the unit cool to room
temperature and then replace the storage subsystem fan.
v You can hot swap, or replace, the storage subsystem 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
storage subsystem 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 LEDs).
v When a storage subsystem fan fails, the fault LED on the storage subsystem fan
is lit. For more information about LEDs, see “Front Bezel LEDs” on page 127.
v If you replace the storage subsystem fan and still experience problems, the
DS4500 Storage Subsystem might have defective components or connections.
Check the storage-management software for indications of other component
failures.
v The storage subsystem fan LED is also used to indicate a fan and
communications module failure. Be sure to check both the storage subsystem fan
and the fan and communications module before you call for service.
When
instructed by the storage-management software, replace the storage
subsystem fan by using the following procedure:
1. Remove the DS4500 bezel (see “Removing the front bezel” on page 32).
Attention: To prevent damage to the DS4500 components, do not operate the
DS4500 without adequate ventilation to the controllers. If it will take longer than
15 minutes to replace the storage subsystem fan, you must shut down the
DS4500 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
storage subsystem” on page 136.
2. Remove the failed storage subsystem fan, as shown in Figure 102 on page 152.
a. Lift the storage subsystem fan lever to its open position (so that the lever is
horizontal and 90°); then, grasp the fan handle and pull out firmly to remove
the fan.
b. Slowly pull the lever away from the chassis to remove the storage
subsystem fan from the bay.
c. Place the storage subsystem fan on a level surface.
Chapter 5. Replacing components 151