DANGER
Electrical voltage and current from power cables are hazardous. To avoid
a shock hazard, always place electrical equipment on dry, static-free level
surfaces. Never turn on any electrical equipment when there is evidence
of fire, water, or structural damage.
8. Unpack the new battery unit. Set the new battery unit on a dry, static-free
level surface.
Save all packing materials in case you have to return the new battery unit.
9. Insert the new battery unit into the controller chassis:
a. Slide the battery pack into the controller until the battery-pack connector
pins are firmly seated in the controller battery connector.
b. Tighten the captive fastener to secure the battery pack in place.
10. Install the cover (see “Removing and installing a cover” on page 107).
11. Insert the controller into the chassis.
a. Ensure that the release levers on the controller are in the open position.
b. Slide the controller into the bay until it stops.
c. Push the release levers to the closed position.
After you replace a controller cache battery, reset the battery age timer. For
information about resetting the batter age timer, see the Storage Manager software
online help.
Replacing the memory cache DIMM
Attention: To avoid damage to the DIMM, you must first remove the memory
cache battery and wait the required time period before you install or remove the
DIMM. Follow the instructions in this procedure exactly.
Attention: To avoid overheating the storage enclosure and causing damage to its
components, replace failed parts within 10 minutes. The Recovery Guru in the
Storage Manager software identifies failed parts.
Do not remove the failed part from the storage enclosure until you:
v Review the replacement procedure for the failed part in this guide.
v Locate screw drivers or any other hand tools that you might need to replace the
failed part.
v Receive the replacement part and are ready to install it in the enclosure.
Before you begin, ensure that you wear an anti-static wrist strap.
Use these procedures if you are replacing a failed DIMM or if you are removing
and installing the DIMM as directed in “Replacing a controller” on page 109.
The following illustration shows the location of the memory cache DIMM.
150 IBM System Storage DS3500 and EXP3500 Storage Subsystem: Installation, User's, and Maintenance Guide
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