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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
Specification
Remarks
Data backup time
72 hours
When Cache Mode is Write
Back with normal Write
Back mode
*1
.
Require time to Full charge
9 hours
Outer dimension
58 (width) × 52 (depth) x 10
(height) mm
Excluding battery cable
Weight
Approx. 0.10 kg
Operating voltage
3.7 V or higher
In normal operation
Power consumption
1.85 W
Temperature
10 C to 35 C
Operating
environment
Humidity
20% to 80%
Without condensation
Temperature
0 C to 35 C
Storage
environment
Humidity
20% to 80%
Without condensation
Operating
About 2 years
It depends on use
environment and operating
conditions.
Life
Storage
About 1 years
It depends on storage
conditions.
*1 Normal Write Back mode is displayed as “Auto Switch” in Universal RAID Utility.
Summary of Contents for N8103-123
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