RAID Maintenance Free Backup Basic Functionality (RMFBU)

June201
3
Rev1.0
Araidco
n
settowri
performa
havingto
isinhere
n
sittingin
c
batteries
cacheme
batteries
dirtycac
h
memory,
cacheme
impleme
n
TheIntel
®
databac
k
RMFBUi
s
flashme
m
apoweri
beremot
e
belocate
d
thecapa
c
environm
Benefits
o
1. S
u
r
e
2. N
3. T
h
e
x
4. T
h
o
5. T
h
c
y
6. T
h
R
A
3

n
trollerorrai
d
t
ebackmod
e
ncebyallow
i
waitforasi
g
n
tlydangero
u
c
achewaitin
g
inthepasti
n
moryaliveu
n
istheadopti
o
h
ebyprovidi
n
tobeheldth
mory.Thisd
n
tationofthi
s
®
RAIDcontr
o
k
upusingeit
h
basedonus
i
m
ory.Thisso
n
terruption.
e
lymounted
d
inanarea
w
c
itorsbeingu
s
entalspecifi
c
o
ftheRMFB
U
u
per‐capacit
o
e
placementc
ANDFlashm
h
esuper‐cap
x
othermicev
h
eRMFBUs
o
rdertoimpo
r
h
eRMFBUc
a
y
cles.
h
erecharge
r
A
IDMaint
e
d
modulewi
t
e
.Settingar
a
ngtheopera
g
nalfromthe
stocriticald
g
tobewritte
n
theevento
f
n
tilthepowe
o
nofusinga
n
gpowerlon
g
ereuntilpo
w
ocumentde
s
s
NANDflash
o
llersandmo
d
h
eraraidbat
t
i
ngcapacitor
s
lutionisdesi
g
TheIntelRe
m
andcannot
b
w
ithinthesy
s
s
ed.Pleaser
c
ations.
U
optioninclu
o
rshavealo
n
osts.
emoryisno
n
acitorsdon
o
ents.
o
lutionsdon
o
r
tandexport
a
nconstantly
r
ateoftheS
u
e
nanceFr
e
t
hcacheme
m
a
idvolumep
tingsystem
a
raidcontroll
e
atashouldt
h
ntodisk(dir
t
f
apowerlos
s
risrestored.
combination
g
enoughtot
w
erisrestore
d
s
cribesthefu
cacheprote
c
d
ulesthatsu
t
ery(BBU)or
s
toholdthe
g
nedtoprot
e
m
oteMainte
n
b
emounted
d
s
temchassis
w
eviewtheR
M
de:
n
gerusableli
f
n
‐volatilewhi
c
o
thavethec
h
o
trequireth
e
them.
maintainth
e
per‐Capacit
o
e
eBackup
m
orysupport
ropertytow
r
a
ndapplicati
o
e
rthatthed
a
h
epowerfail
t
ycache)can
s
toprovide
e
Arecentin
n
ofNANDfla
s
hecacheme
d
whenthed
nctionofthe
c
tionoption. 
pporton‐co
n
aMaintena
n
memorycirc
u
e
ctdatain‐fli
g
n
anceFreeB
a
d
irectlyonth
e
w
ithatherm
a
M
FBUusergu
f
espanthan
c
hcanholdd
h
emicalvolat
i
e
comprehen
s
e
raidvolume
o
risminutes
a
BasicFun
c
willallowar
r
itebackmo
d
o
ntogoont
o
a
tahasbeen
duringsuch
a
belost.rai
d
e
noughener
g
n
ovationtoa
d
s
hmemorya
n
morytocop
y
d
atacanbe
m
IntelRAID®
M

n
trollercache
n
ceFreeBack
uitaliveuntil
g
htthrough
c
ackupUnit(
R
e
raidcontro
l
a
lenvironme
u
ideforinfor
m
batterieswh
i
d
ataforupto
i
lityofbatter
s
ivecertifica
t
inwritebac
k
a
scompared
c
tionality
aidvolume’s
d
ecangreatl
y
o
thenextop
writtentodi
s
a
noperation
d
controllers
h
g
ytokeepth
e
d
dressthesh
n
dsuper‐cap
y
datafromd
m
ovedbackin
M
aintenceF
r
memoryals
o
k
upSolution(
cachedata
c
c
ontrollerca
c
R
MFBU)solu
t
ller.Thisall
o
ntconducive
m
ationrelate
i
chreduces
m
10yearswit
ieswhichcar
t
ionsrequire
d
k
modeeven
tohoursfor
cachepolicy
y
enhance
erationwith
o
s
k.However
,
becausedat
a
h
avereliedo
n
e
raidcontrol
ortlifespan
o
acitorstopr
o
irtycacheto
tocontroller
r
eeBackup
o
supportca
c
RMFBU).Th
e
c
anbewritte
n
c
heintheev
e
t
ionisdesign
e
o
wsthesoluti
tolongerlif
e
e
dto
m
aintenance
a
houtrefreshi
ryariskof
d
ofbatterie
s
whendoing
l
abattery.

tobe
o
ut
,
this
a

n

ler’s
o
f
o
tect
flash
c
he
e

n
to
e
ntof
e
dto
onto
e
of
a
nd
ngit.
s
in
l
earn