Installing a ServeRAID SAS controller battery on the remote battery tray

Use this information to install a ServeRAID SAS controller battery on the remote battery tray.

Note

For brevity, in this documentation the Intelligent Battery Backup Unit (iBBU) is often referred to as the battery.

When you install any RAID adapter that comes with batteries, it is sometimes necessary to install the batteries in another location in the server to prevent the batteries from overheating. The batteries must be installed near the fan cage.

To install a RAID adapter battery in the server, complete the following steps:

Note

If you are installing ServeRAID-M5100 Series 512 MB cache RAID 5 upgrade that comes with a battery, you must install the battery in ServeRAID SAS controller remote battery retention instead (see "Installing an optional ServeRAID SAS controller battery holder").

Figure 1. Installing a ServeRAID SAS controller battery on the remote battery tray

1. Read the safety information that begins on Safety and Installation guidelines.
2. Turn off the server and peripheral devices and disconnect all power cords and external devices (seeTurning off the server).
3. Remove the cover (see Removing the cover).
4. Connect one end of the battery cable to the ServeRAID SAS controller battery connector.
5. Route the remote battery cable along the chassis.
   Attention

   Make sure that the cable is not pinched and does not cover any connectors or obstruct any components on the system board.
6. Install the battery near the fan cage:
   1. Align the battery cable connector with the slot on the battery holder. Place the battery into the battery holder and make sure that the battery holder engages the battery securely.
      Figure 2. RAID adapter battery installation
      
      

      Note

      The positioning of the remote battery depends on the type of the remote batteries that you install.
   2. Connect the other end of the battery cable to the battery cable connector on the battery.
   3. Place the battery retention clip underneath while pressing the release tab toward the front of the server until it snaps in place to hold the battery retention clip firmly in place.
   Note

   The battery must recharge for at least 6 hours under normal operating conditions. To protect your data, the ServeRAID controller firmware changes the write policy to write-through until the battery unit is sufficiently charged. When the battery unit is charged, the ServeRAID controller firmware changes the write policy to write-back.