Carat BBU-MODULE-04 Manual

Carat Batteri BBU-MODULE-04

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LSI™ MegaRAID® LSIiBBU08

Intelligent Battery Backup Unit for 6Gb/s MegaRAID

SAS Controller Cards

Product Brief

K E Y F E A T U R E S

Helps protects integrity of cache in

the event of power or server failure

Higher maximum ambient tempera-

ture tolerance than previous genera-

tion battery backup units

Multiple modes of operation and

retention times

Transparent and shorter learning

cycles

For use on all existing 6Gb/s

MegaRAID controllers

Customize mounting location in

chassis with remote mounting

options

Higher Ambient Temperature Toler-

ances and Increase Serviceability

The LSIiBBU08 can tolerate higher ambi-

ent temperatures around the battery

backup unit as compared to the previ-

ous generation battery, with tolerances

of up to 55°C versus 45°C for ambient

cell temperature. There is also a remote

mount option available which allows

customers who have limited chassis

space or a constrained thermal environ-

ment to reposition the battery backup

unit away from the RAID controller card

for cooling purposes.

A lower temperature environment will

generally help prolong the service life of

a battery backup unit, while high tem-

peratures and extreme conditions will

shorten the battery life. For example, if

the battery is set to a 12-hour DRT and

45°C mode, it may not require replace-

ment for the life of the RAID controller1.

However, using a 48-hour DRT and 55°C

mode with your battery may cause a

situation where the battery requires

replacement after the rst year of use2.

Multiple modes of operation and

retention time

The LSIiBBU08 allows for multiple

modes of operation, which let the user

select a shut-o data retention time

(DRT) of 12, 24, or 48 hours with as-

sociated operating temperatures, learn

cycles, and estimated service lives. The

MegaRAID controller rmware will use

the LSIiBBU08 until it calculates that

the battery can only guarantee cache

data for the selected period of time in

the event of power loss to the server.

With previous generation MegaRAID

batteries, there was only one mode of

operation with a retention time of 72

hours. By oering these multiple modes

of operation, the LSIiBBU08 provides the

exibility to select the optimum DRT,

performance based on cache policy, and

maximum operating temperature that

best ts their specic application and

environment.

L S I i B B U 0 8 M O D E

M O D E

5 L S I i B B U 0 7

Data Retention

Time (DRT) 2

12 Hrs 12 Hrs 24 Hrs 48 Hrs 48 Hrs 72 Hrs

Transparent Learn

Cycle

√ √ √

Op Temp

(Charging Temp)

45o C 55o C 45o C 45o C 55o C 45oC

Estimated service

life3

5 years 3 years 3 years 3 years 1 years 1 year

1. Life of the controller is estimated at three years based on

standard warranty

2. Estimated Calculation based on; 1GB (5 chips) DDR2 and one

1500 mAh Lithium ion cell, individual results may vary.

3. Based on internal calculations regarding estimated battery life

and losses over time, individual results may vary.

Note: BBU warranty is still one year for all modes of operation.

LSIiBBU08

Produkt Specifikationer

Mærke:	Carat
Kategori:	Batteri
Model:	BBU-MODULE-04
Vægt:	- g
Antal pr. pakke:	1 stk
Produktfarve:	Flerfarvet
Batterispænding:	- V
Batterikapacitet:	1500 mAh
Formfaktor:	PCI slot
Driftstemperatur (T-T):	0 - 45 °C
Dimensioner (BxDxH):	- mm
AC-adapter inkluderet:	Ingen
Batterilevetid:	3 År
Opladningstid for batteri:	4 t
Numre af batterier medfølger:	1 stk
Intern:	Ja
Kompatible produkter:	3ware 9690SA/9650SE/9590SE/9550SX(U)
Antal battericeller:	1
Sælger:	LSI