1. Owner's Guide
  2. Security and Maintenance of Recovery Appliance
  3. Maintaining the Recovery Appliance Hardware
  4. Replacing a Disk Controller Battery Backup Unit

Replacing a Disk Controller Battery Backup Unit

The disk controller battery backup unit (disk controller BBU) resides on a drive tray in the compute and storage servers. You can replace the disk controller BBU without downtime. The following procedures describe how to replace the disk controller BBU:

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.