IBM SAN Volume Controller, Hardware Maintenance Manual

Page: 154 / 334

9. Reconnect the fibre-channel and Ethernet cables. Ensure that you replace the fibre-channel and
Ethernet cables in the same ports from which they were removed.
10.
Turn on the node.
Removing the CMOS battery
You must remove the system board complementary metal-oxide semiconductor (CMOS), or system-board,
battery to replace it or to perform routine maintenance.
This product was designed with your safety in mind. The lithium battery must be handled correctly to
avoid possible danger. If you replace the battery, you must adhere to all safety instructions.
Use the reference numbers in parentheses at the end of each notice, such as (C003) for example, to find
the matching translated notice in
IBM Systems Safety Notices .
Removing the SAN Volume Controller 2145-CF8 CMOS battery
This topic describes how to remove the SAN Volume Controller 2145-CF8 CMOS battery.
DANGER
Multiple power cords. The product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords.
CAUTION:
The battery contains lithium. To avoid possible explosion, do not burn or charge the battery.
Do not:
v
Throw or immerse into water
v Heat to more than 100°C (212°F)
v
Repair or disassemble
Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local
regulations. In the United States, IBM has a process for the collection of this battery. For information,
call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C003)
This service action requires you to remove the cover and:
v
Turn the node off.
v
Disconnect the power cables.
v
Optionally disconnect the fibre-channel and Ethernet data cables.
To remove the CMOS battery, perform the following steps:
1.
Read the safety information to which “Preparing to remove and replace parts” on page 20 refers.
2. Follow the procedure in MAP 5350 in the IBM System Storage SAN Volume Controller 2145
Troubleshooting Guide to verify that the node data is mirrored and synchronized, and that there are no
dependent volumes before turning off the node.
3.
Slide the node out on its slide rails to the fully extended position.
You can perform most service actions when the node is fully extended from the rack on its slide rails.
You can leave the fibre-channel and Ethernet cables connected, if you are using the cable-management
arm and if you are not removing the node from the rack. If the location of the node in the rack is too
high or too low to work comfortably, you can remove the node from the rack.
4. When the node is completely turned off, remove the cable-retention brackets and disconnect the
power cables, as described in “Removing the cable-retention bracket” on page 29.
128
IBM SAN Volume Controller Hardware Maintenance Guide