1.9 Replacing a Disk Controller Battery Backup Unit

The disk controller battery backup unit (disk controller BBU) resides on a drive tray in the database and Exadata Storage Servers. The disk controller BBU can be replaced without downtime for the server or the applications running on the server.

Note:

The procedures in this section do not apply to on-controller battery backup units. Replacement of those units require a system shutdown because the system must be opened to access the controller card.

• Replacing a Disk Controller BBU on a Database Server
  
• Replacing a Disk Controller BBU on an Exadata Storage Server
  This section describes how to replace a disk controller BBU on an Exadata Storage Server.