NEC N8103-100, Руководство пользователя

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Chapter 1 Overview
First read this chapter if you use the N8103-100 Additional DAC Battery (called BBU below) 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 N8103-99 Disk Array Controller (0ch).
Connecting the BBU to the disk array controller can prevent data from being lost due to an unforeseen
accident including instantaneous power interruption (in the WriteBack mode).
„
Backup of data in cache memory on disk array controller for up to 64 hours
„
Improvement of reliability in WriteBack mode
„
Use of rechargeable NiMH battery
2. Specification
Item Specification Remarks
Maximum data backup time 64 hours Full charging
Outer dimension (mm) 49 (width) × 68 (depth) × 15 (height)
Weight About 0.07 kg
Battery capacity 4.22 Wh Normal operation
Temperature
10
°
C - 35
°
C
Operating
environment
Humidity 20% - 80% Without condensation
Temperature
0
°
C - 35
°
C
Storage
environment
Humidity 20% - 80% Without condensation
Life (battery back) About 2 years Varies depending on
operating environment and
boundary conditions