netapp insight 2015 id 2331-2
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Session: 2331
Storage Subsystem Tech FAQ
Deep Dive
James Wright
TM Storage !ro"uct Management
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The in#ormation in this presentation is con#i"entia$ an" proprietary to %etApp an" may not be "isc
&ithout the &ritten permission o# %etApp'
The in#ormation is inten"e" to out$ine our genera$ pro"uct "irection' (t is inten"e" #or in#ormation p
on$y) an" may not be incorporate" into any contract' (t is not a commitment to "e$iver any materiaor #unctiona$ity) an" shou$" not be re$ie" upon in ma*ing purchasing "ecisions' %etApp ma*es no
e+presse" or imp$ie") on #uture #unctiona$ity an" time$ine' The "eve$opment) re$ease) an" timing o
#eatures or #unctiona$ity "escribe" #or %etApp,s pro"ucts remains at the so$e "iscretion o# %etApp
strategy an" possib$e #uture "eve$opments) pro"ucts an" or p$at#orms "irections an" #unctiona$ity
sub.ect to change &ithout notice' %etApp has no ob$igation to pursue any course o# business out$
this "ocument or any re$ate" presentation) or to "eve$op or re$ease any #unctiona$ity mentione" th
Confidentiality Notice
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The %etApp Data Fabric cosystem
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78F7Series
Storage9(DWebsca$e
F$e+Arrayan" F4(
6nomman"Management Suite
FAS ; AFF
%on7%etApp StorageM)
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1' Storage Subsystem Te
6rigins
2' ?est !ractice =s' Suppon#igurations@
3' ai" 4ayout) Does ?a$
' Stac* Transitions)
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6rigins
Subsystem Storage Technica$ FAQ
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6rigins
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Webster,s "e#ines ?est !ractice as:
GA proce"ure sho&n by research an" e+perience to pro"uce optima$ resu$testab$ishe" or propose" as a stan"ar" suitab$e #or &i"esprea" a"option'H
?est !ractice ecommen"ation
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%etApp $everages a best7practice approach in the "esign o# "e#au$t con#igu
so$utions
Architecte" &ith these #actors in min" 6ptimiIe" #or per#ormance
(ncrease" resi$ience an" uptime
So$utions &e$$ "esigne" an" teste") va$i"ate" by myria" o# metho"s
Simp$icity) ease o# use ba*e" in
?est !ractice ecommen"ation
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A so$ution in &hich the arrange" components have been va$i"ate" by engi
support to interoperate #unctiona$$y) though not necessari$y at optimum perresi$ience
6r as Webster,s states #or GsupportHGTo *eep something goingH (t,s a so$ution &hose purpose is to .ust &or*) nothing more
Supporte" on#iguration
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De#inition
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Solution features Best-practice recoendation Supported
!er#ormance base" es !a
esi$ient es !a
9o$" stan"ar" es
Functiona$$y teste" to &or* es !a
Siple to deploy es "a
?est !ractice ecommen"ation =ersus Supporte" on#
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4everage ?est7!ractice recommen"ations &hen avai$ab$e through use o#
?est7in7bree" per#ormance
Supporte" con#igurations &i$$ yie$" resu$ts but) again) not optimiIe"
?est !ractice =ersus Supporte" on#igurationWhat Do
Mean@
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What (s 9 ?a$ance an" Does (t ea$$y Matter@
A(D 4ayout
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A(D group 9KArrangement o# &ho$e or partitione" SSD or Drive or partition &hich ho$"s user "ata
!arity !K>Drive or partition &hich is $everage" to reconstruct user "ata in
"is* #ai$ure in a 9
Spare SKep$acement "rive or partition avai$ab$e in the event o# "is* #ai$u
in#ormation trans#erre" to this "rive "uring reconstruction
ai" 4ayout6vervie&
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A(D Data protection scheme &ith a sing$e parity "rive in a 9
A(D D! D!K>Data protection scheme &ith t&o parity "rives in 9 eCuiv
ai" 4ayout6vervie& ontinue"
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A(D group $ayoutDistribution o# 9 in an aggregate ?a$ance"Distribute" approach) &here con#igurations are provisione" &ith eCua$$y or ne
spin"$e count 9s &ithin an aggregate
(mba$ance"Distribute" approach) &here con#igurations are provisione" &ith 9s that a
spin"$e count &ithin an aggregate
A(D 4ayout ?a$anceWhat (s (t@
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6ne approach is to have a ba$ance" $ayout as sho&n be$o&
%ote: Best-practice recoendation #or SAS"rives &ou$" "ep$oy a ba$ance" $ayout &ith"e#au$t 9 siIe) instea" o# K 9s o# B to ma+imiIe the &rite throughput &ith a""itiona$ "rthe parity ta+ as you," have "rives #or parity &ith the $arger 9 instea" o# B #or the sma$$e
A(D ?a$anceWhat (s (t@
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#!!re!ate
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An imba$ance" $ayout is sho&n be$o&
%ote: %etAppData 6%TA! is resi$ient enough to serve "ata &e$$ in a imba$ance" 9 $ayosuggest $imiting the "i##erence in "rive count to ha$# the siIe o# the other 9s) i# possib$e' Thnumber o# 9s in the aggregate) the sma$$er the impact &i$$ be in per#ormance'
A(D ?a$anceWhat (s (t@
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#!!re!ate
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De#au$t an" Ma+imum
5se De#au$ts as ?est !ractice
A(D De#au$t 9 siIe
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$ata %N"' Default & Maximum RAID GroupSize by Drive Type
$ri(e &ype A(D Type
De#au$t A(D 9roup
SiIe)a*iu +#,$
roup Si.e
SS$ A(D7D! "e#au$tK 23 212K 28 /262
A(D B N1K 14 /131
S#SC A(D7D! "e#au$tK 1L 12K 28 /262A(D B N1K 14 /131
S#N-S#S A(D7D! "e#au$tK 1 122K 20 /182
A(D N L1K 7 /61
6&B N-S#S)S# A(D7D! "e#au$tK 1122K 14 /122
+#,$ 4 7 /61 7 /61
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hoose ba$ance" $ayout &here possib$e) using "e#au$t 9 siIes !er#ormance optimiIe" &hen ta*ing this ?est !ractice approach
(mba$ance" $ayout #unctions su##icient$y &e$$) ho&ever one shou$" mainta
at $east ha$# the siIe o# the other member 9s to avoi" per#ormance issues
A(D 4ayoutWhat Does (t Mean@
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What (s (t an"
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SASSeria$7attache" SS() metho" that %etApp storage $everages to tran
SAS
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(6M (86 Mo"u$eK omponent in rear o# she$# that is cab$e" to a ontro$$er
other she$ves in the stac* enab$es she$# communication' (6M34egacy) 39b8s SAS storage techno$ogy
(6ML urrent) L9b8s SAS storage techno$ogy
Stac*A group o# SAS she$ves attache" via copper cab$e or optica$ &iring
SAS
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SAS Storage 4in* !rocess 7 continue
ontro$$er
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Sing$e Transition +amp$e: FASB0B0: she$# P1 DS23(6M3K she$# P2 D
Stac* Transition What is it@@@
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'
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T&o Transition +amp$e: FASB0B0: she$# P1 DS22L (6MLK she$# P2 DS
she$# P3 DS22L (6MLK
Stac* Transition What is it@@@
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1' ontro$$er
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7 (nterna$ She$# ontro$$er +amp$e FAS22: she$# P0 interna$ DS22L (6
DS23 (6M3Kshe$# P2 DS22L (6MLK: t&o transitions
Stac* Transition What is it@@@
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1' ontro$$er
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?est7practice recommen"ation(s an" has been to have no more than a si
#rom (6M3(6ML in a stac* nsures optima$ per#ormance in a storage stac*
!rovi"es the best resi$iency possib$e in mi+e" (6M3 an" (6ML scenarios
Stac* TransitionWhy@
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!o$icy shi#t in current environments
Mu$tip$e (6M3(6ML transition con#igurations no& a supporte" con#igur
?est practice recommen"ation remains to $imit stac* transitions to one ho&
hange "ue to a revie& in AS5! "ata an" e+tensive engineering testing sris* in "o&ntime events or serious per#ormance "egra"ation #or mu$ti7transenvironments
T&o or more transitions a$$o&e" up to the 107stac* "epth $imitO
Stac* TransitionWhat,s ne&@
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?est practice #or (6M3(6ML is sti$$ a sing$e transition #or per#ormanc
resi$ience
Supporte" con#iguration #or (6M3(6ML environments beyon" 2 tran
per#ormance not optima$ as a$$ permutations are not continua$$y va$i"ate"'
Stac* TransitionWhat (t Means
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7
Storage Tips
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Rey Ta*ea&ays
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5n"erstan" &hy there are best practices an" &here they are app$ica
4earn ho& #o$$o&ing recommen"ations can improve your storage per
9ain *no&$e"ge on supporte" storage con#igurations
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For a""itiona$ in#ormation a#ter the event visit:
e$ate" Sessions an" esources
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4earn more about this topic
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Te$$ 5s What ou ThoughtTe$$ 5s What ou Thought
Ta*e an (nsight survey on your mobi$e "evice
omp$ete" surveys are entere" into a "ra&ing to
&in an App$e Watch) %etApp gear) an" more
Don,t have the app@ Do&n$oa" the (nsight Mobi$e App
at the App$e Store an" on 9oog$e !$ay'
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Stay onnecte"
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Speaer Nae ere
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Storage Subsystem Technica$ FAQ
QEA
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Than* you
/ 201 %etApp) (nc' A$$ rights reserve"' %o portions o# this presentation may be repro"uce" &ithout prior &ritten consent o# %etApp) (nc' Spe
to change &ithout notice' %etApp an" the %etApp $ogo are registere" tra"emar*s o# %etApp) (nc' in the 5nite" States an"8or other countries
pro"ucts are tra"emar*s or registere" tra"emar*s o# their respective ho$"ers an" shou$" be treate" as such'
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