Replacing A Failed Battery - IBM TotalStorageFAStT900 User Manual

v When a battery fails, the fault light on the battery is lit. For more information
v If you replace the battery and still experience battery problems (for example, loss

Replacing a failed battery

When instructed by the storage-management software, replace the battery.
Attention:
CRU (not just the batteries) in order to keep the battery backup system in working
order. Opening the battery CRU voids your warranty.
to determine when to replace the battery. For information about using the
software to track battery age, refer to the IBM FAStT Storage Manager online
help.
about indicator lights, see "Battery indicator lights" on page 24.
of battery power to the controllers or batteries not charging properly), the
FAStT900 Storage Server might have defective components or connections.
Check the storage-management software for indications of other component
failures.
Because the battery CRU is a sealed unit, you must replace the entire
1. Use the storage-management software to disable caching. Caching is disabled
when the Fast write cache indicator light is off. Data in cache is unprotected if
a power outage occurs while the battery CRU is out of operation.
Attention: When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For details about handling static-sensitive
devices, see "Handling static-sensitive devices" on page 37.
Statement 8:
CAUTION:
Never remove the cover on a power supply or any part that has the
following label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts
inside these components. If you suspect a problem with one of these
parts, contact a service technician.
2. Remove the FAStT900 Storage Server bezel, as shown in Figure 21 on
page 16.
Attention: Be careful when you remove the battery. The battery weighs
approximately 6.4 kg (14 lb).
3. Using Figure 36 on page 42 as a guide, remove the battery.
a. Loosen the four captive screws on the battery. If necessary, use a flat
blade screwdriver to loosen the screws.
b. Using both pull handles, slide out the battery about 5 cm (2 in.).
c. Using both hands, grasp the sides of the battery and pull out.
Chapter 3. Replacing the FAStT900 Storage Server components
41