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8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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FCoE vs iSCSI
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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Transition to 10 Gigabit Ethernet is Now
Multi-Core CPU architectures allowing bigger
and multiple workloads on the same machine
Server virtualization driving the need for more
I/ bandwidth per server
!rowing need for network storage driving the
demand for higher network bandwidth to the
server
"#!$ %&' on server Motherboards (%oM) in*"C+#,
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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Cisco Data Center Ethernet:What and Why
Cisco®
Data Center EthernetDCE!" is a Cisco #too$bo%& o'
Ethernet enhance(ents)
Cisco DCE enhance(ents are
standards*based)
Cisco DCE enhance(ents ares+,,orted by ecosyste(
,artners)
-ene'its o' Cisco DCE:
•Enab$es the .ni'ied Fabric to
acco((odate /N storage andc$+stering a,,$ications
• 2igh s,eed /oss$ess trans,ort
• Congestion (anage(ent
• 3ossibi$ity o' $arger /ayer 4
do(ains
U n i f i e d - a b r i c a n d I /
Storage
'etwork
Mgmt
'etwork
Cluster
.
Cluster" ackup
'etwork
Unified
abric
Unified
abric
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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Data Center Ethernet
Feat+re 5 Standard -ene'it
3riority F$ow Contro$ 3FC"I$$$ 0#.1"*bb
Enab$e (+$ti,$e tra''ic ty,es to share a co((onEthernet $in6 witho+t inter'ering with each other
-andwidth 7anage(entI$$$ 0#.1"*az
Enab$e consistent (anage(ent o' 8oS at thenetwor6 $eve$ by ,roviding consistent sched+$ing
Congestion 7anage(entI$$$ 0#.1"*au
End*to*end congestion (anage(ent 'or/4 networ6
Data Center -ridgingE%change 3rotoco$ 2C3"
7anage(ent ,rotoco$ 'or enhanced Ethernetca,abi$ities
/4 7+$ti,ath 'or .nicast and 7+$ticast
Increase bandwidth (+$ti,$e active ,aths)No s,anning tree $arger /4 do(ain 'or (odern
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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Co$ enefits
FC over Ethernet FCoE"
7a,,ing o' FC 'ra(es
over Ethernet
Enab$es FC to r+n
on a $oss$ess Data CenterEthernet networ6
Wire Server 9nce
Fewer cab$es and ada,ters
So'tware 3rovisioning o' I59
Intero,erates withe%isting SNs
No gatewaystate$ess
Fibre
Channe$
Ethernet
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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iSCSI Co$
iSCSI and FCoE ; an aside
Enet Header
FCS
IP
TCP
iSCSI Header
iSCSI DATA
(variable)
Enet Header
FCS
FCoE Header
EOF
FC Frame
(variable)
Up to 2112
iSCSI ,ac6et <
SCSI c(ds =
data in TC35I3
,ac6et
., to >1?0 -
FCoE Fra(e
., to 41?0 -
Enca,s+$ated
FC Fra(e
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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Networ6 Stac6 Co(,arison
$thernet
IP
4CP
iSCSI
CIP
Co$
C
CP
SCSI
Ph5sical 6ire
SCSI iSCSI CIP Co$ C
Less Overhead
than
FCIP or iSCSI
Less Overhead
than
FCIP or iSCSI
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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iSCSI
Standard
Ethernet NIC
So'tware Initiator
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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FCoE
Ethernet NIC
2ost -+s da,ter
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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iSCSI Co$
iSCSI and FCoE
@ -$oc6 $eve$ storage ,rotoco$@ Ao+tab$e ; .ses TC35I3@ So'tware Driver5Initiator avai$ab$e@ C3. Intensive ; C3. B so'tware@ 3ri(ari$y 1GE
@ 3ri(ari$y +sed 'or $ower*s,eed I59@ .s+a$$y chea,er than FC3 or FCoE@ 9'' the she$' NICs@ TC35I3 9''$oad Engine T9E" cards
'or higher ,er'or(ance@ Wor6s with DCE
@ Sca$ing iss+e at 10G and beyond
N9T2ING WA9NG with iSCSI
@ -$oc6 $eve$ storage ,rotoco$@ Not ro+tab$e@ Ae+ires a CN today"@ /4 on$y ,rotoco$@ Ae+ires 10G DCE
@ DCE a$$ows 'or di''erentiated c$asso' service
@ do,tion ra,id$y increasing@ -+i$t 'or 2ardware integration@ 7ore E''icient ,rotoco$@ 2igh*,er'or(ance invest(ent
,rotection o,tion 'or e%isting FCenviron(ents
Where $arger hardware vendors are
concentrating e''orts
8/18/2019 9. Intro to FCoE-FCoEvsiSCSI
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FCoE enab$er: 7DSCritica$ E$e(ent o' Aea$ Wor$d 7 De,$oy(ent
abric Scalabilit5 and PerformanceAesi$ient high ,er'or(ance 'abric to s+,,ort$arge dense 7 environ(ents
Performance Monitoring and4rending7*gran+$ar (anage(ent and tro+b$eshooting
*ualit5 of Service (*oS)7*gran+$ar ,o$icy ,rovisioning
7S&'s Isolate ault 2omainsIncrease avai$abi$ity si(,$i'y tro+b$eshootingi(,rove sec+rity B co(,$iance
S&'abric
4ier "
4ier .
4ier 8
VSAN – Tier 1
VSAN – Tier 2
VSAN – Tier 3
Mobilit5 with Securit5Wire*s,eed encry,tion ,rotects data intransit and 7s d+ring (igration
7 7 7 7
7 7 7 7
7 7 7 7
7 7 7 7
7 7 7 7
7 7 7 7
'PI7
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