NEC DAC Battery N8103-102 - Manual (Page 43)

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.