Removing and Installing a RAID Controller Module Backup Battery Unit

Removing and Installing a RAID Controller Module Backup Battery Unit

Each RAID controller module has a battery unit that provides backup power for the data cache memory. The battery unit is mounted inside the RAID controller module and connects to the controller circuit board. This section describes how to remove and replace the battery unit.

CAUTION: Only trained service technicians are authorized to remove the enclosure cover and access any of the components inside the enclosure. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the enclosure and protecting against electrostatic discharge.

NOTICE: RAID controller modules are hot-pluggable and can be removed and installed without shutting down the enclosure. However, removing a controller module while data traffic is occurring that involves that controller could cause data loss and is not recommended. Use the MD Storage Manager to take the RAID controller module off line before removal.

CAUTION: Always wear a wrist grounding strap when handling equipment with static-sensitive components. See your Product Information Guide for safety information.

1. Use MD Storage Manager to place the RAID controller module offline. See the MD Storage Manager documentation for more information. 

    

    

2. Remove the RAID controller module (see "Removing and Installing a RAID Controller Module"). 

    

3. Remove the screws holding the battery cover and remove the cover (see Figure 4-5). 
    

    Figure 4-5. Removing and Installing a RAID Controller Module Backup Battery Unit

1. Unscrew the thumbscrew holding the battery unit to the controller module. 

    

    

2. Disconnect the battery unit from the connector by sliding it towards the back of the controller, then remove it from the controller module. 

    

3. Place the replacement battery unit into the controller module tray and push the battery unit into the connector on the RAID controller circuit board. 

    

4. Tighten the thumbscrew to secure the battery unit to the controller. 

    

5. Reinstall the battery cover. 

    

6. Reinstall the RAID controller module (see "Installing a RAID Controller Module"). 

    

7. Reset the battery installation date using MD Storage Manager.