Table of Contents
Advertisement
25
Chapter 1 Overview
First read this chapter if you use the N8103-123/124 RAID Battery Backup Unit (called
Battery Backup Unit=BBU) 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 N8103-116A/117A/118A/129/130
RAID Controller and the Internal RAID Controller (N8103-116A or equivalent) (called RAID
Controller).
Connecting the BBU to the RAID 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 RAID Controller
Improvement of reliability in WriteBack mode
Use of rechargeable lithium ion battery
2. Specification
Item
Data backup time
Require time to Full charge
Outer dimension
Weight
Operating voltage
Power consumption
Operating
Temperature
environment
Humidity
Storage
Temperature
environment
Humidity
Life
Operating
Storage
*1 Normal Write Back mode is displayed as "Auto Switch" in Universal RAID Utility.
Specification
72 hours
9 hours
58 (width) × 52 (depth) x 10
(height) mm
Approx. 0.10 kg
3.7 V or higher
1.85 W
10 C to 35 C
20% to 80%
0 C to 35 C
20% to 80%
About 2 years
About 1 years
Remarks
When Cache Mode is Write
Back with normal Write
*1
Back mode
.
Excluding battery cable
In normal operation
Without condensation
Without condensation
It depends on use
environment and operating
conditions.
It depends on storage
conditions.
Advertisement
Table of Contents
