NEC N8103-102 manual Overview, Characteristics of BBU

Chapter 1 Overview

First read this chapter if you use the N8103-102 Additional DAC Battery (called BBU hereafter) for the first time.

This chapter describes the characteristics and configuration of the BBU and outlines the additional battery installation job.

1. Characteristics of BBU

The BBU is an additional battery exclusively used for the N8103-101 Disk Array Controller (SATA2) (called disk array controller hereafter).

Connecting the BBU to the disk array controller can prevent data from being lost due to an accident including instantaneous power interruption (in the WriteBack mode).

„Backup of data in SDRAMs on disk array controller for up to 72 hours

„Improvement of reliability in WriteBack mode

„Use of rechargeable lithium ion battery

„Can be installed in either of PCI/PCI-X slot or PCI-Express slot by changing the installation position of PCI bracket.