Strictly Confidential | © 2012 Silver Peak Systems, Inc. All Rights Reserved. May 22nd, 2013...

Strictly Confidential | © 2012 Silver Peak Systems, Inc. All Rights Reserved.

May 22nd, 2013

STORAGE REPLICATION ACCELERATION

Taking Control of the Problem

Colm Foley\

Channel & Alliance Sales [email protected]


100% FOCUSED ON WAN OPTIMIZATION

• Silver Peak is a leading vendor in WAN Optimization controllers

• WAN Optimizationo Storage Replicationo Branch-Office to Data-Center

• According to Gartner:o “Use Silver Peak when data-center-to-data-center performance is critical and in

branch-to-data-center networks…”

o “Silver Peak has leveraged its leadership position in data-center-to-data-center optimization…”

SILVER PEAK


WHY ARE WE HERE?


STORAGE TRENDS Replication, DR, Backup


RPO (Recovery Point Objective)o How much data can you afford to lose?

RTO (Recover Time Objective)o How much time does it take to get up and running again?

RPO VS RTO


BETTER DR NEEDED

Forrsights Hardware Survey, Q3 2012, Forrester Research, Inc. A commissioned study conducted by Forrester Consulting on behalf of Silver Peak Systems, Jan 2013


WHAT’S DRIVING INCREASE IN STORAGE


NOT REPLICATING EVERYTHING


1/3 NOT REPLICATED MISSED RPO

REPLICATION SHORTFALLS



WANT TO REPLICATE MORE



REPLICATION


• Latencyo Storage protocols are highly susceptible to latencyo As latency increases performance decreases

• Losso Packet loss has a dramatic impact on performanceo Retransmits affect throughput

• Out of ordero Out of order packets reduce performance of storage protocols

• Bandwidtho Replication can require high bandwidth

REPLICATION PROBLEMS


LANWAN

WHY IS A WAN NOT LIKE A LAN?

LOSS

MPLS 0.1% - 2%

METRO ETHERNET 0.1% - 2%

IP VPN 1.0% - 8.0%

CONGESTION

$/Port = High

LATENCY

20-300ms

LOSS

None

CONGESTION

$/Port = low

LATENCY

~1ms


DARK FIBER EVERYWHERE - $$$$$

REPLICATE AS IF ON A LAN

• Latency

• Loss

• Congestion

Replication Demo: Dedicated


LATENCY HAS DIRECT IMPACT ON THROUGHPUT

LATENCY

http://en.wikipedia.org/wiki/Measuring_network_throughput

“…220ms…tested Bandwidth will be restricted to 2.376 Mbit/s even if the contracted Bandwidth is greater”

http://en.wikipedia.org/wiki/Measuring_network_throughput


EFFECTIVE THROUGHPUT WITH LOSS

LOSS

NetForecast, “Improving Effective WAN Throughput for Large Data Flows, by Peter Sevcik and Rebecca Wetzel, Nov 2008


100MS LATENCY

EFFECT OF LOSS


THE DIRTY LITTLE SECRET

LATENCY + LOSS

http://searchenterprisewan.techtarget.com/news/1365364/MPLS-dirty-little-secret-Dropped-packets-that-impact-performance

http://searchenterprisewan.techtarget.com/news/1365364/MPLS-dirty-little-secret-Dropped-packets-that-impact-performance


MORE DATA BEING SAVED

• Users saving every email, powerpoint, and word doc

• Compliance requiring more data stored

• eDiscovery requiring data to be accessed quicker

CONGESTION

WAN


DON’T LET YOUR WAN SLOW DOWN REPLICATION


FIXING LATENCY

Transmit Ack

Latency 100 ms*

Total time: 500 msWithout Network Acceleration

Transmit Ack

Latency 100 ms*

Total time: 100 ms With Network Acceleration

*Latency is determined by:- Speed of light- Route taken- Congestion in network


REAL-TIME

FIXING PACKET LOSS

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Strictly Confidential © 2012 Silver Peak Systems Inc.

Network congestion is experienced

Silver Peak

Based upon the level of congestion, FEC packets are sent for every “N” real packets

FEC packets reconstitute lost packets at the far end, eliminating the need to retransmit lost data

XPacket Lost

WAN Silver Peak


REAL-TIME

FIXING OUT-OF-ORDER-PACKETS

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Strictly Confidential © 2012 Silver Peak Systems Inc.

123 123

WAN


3 PROBLEMS TO SOLVE

• Network Accelerationo Latency

• Network Integrityo Packet Losso Out-of-Order Packetso QoS

• Network Memoryo Deduplication

FIXING REPLICATION


REPLICATION ACELERATION


VELOCITY REPLICATION ACCELERATION (VRX) FAMILY

•All VRX models are available with perpetual or subscription licenses•All VRX models support VMware, Hyper-V, KVM, and Xen hypervisors


INFOWORLD TEST CENTER EDITOR KEITH SCHULTZ WRITES:

• “If you are considering deploying a WAN optimization solution, you owe it to yourself to give a Silver Peak VX a test run. You won't be disappointed.”

• “I found the VX to provide a substantial improvement in overall WAN usage and reduction in time, even besting a [Riverbed Steelhead 2050] physical chassis in some tests.”

• “Installation was very straightforward.”

• Rated a perfect “10” for Value.

SILVER PEAK VX WINS EDITOR’S CHOICE


WHO’S PROBLEM IS IT TO SOLVE?

STORAGE ADMIN MISSING RPO

How does Storage Admin solve a replication problem?1. Ask CIO for larger RPO2. Ask CIO to enforce end-users store less data3. Ask Network Admin to spend $ and buy a dedicated WAN link4. Ask Network Admin to spend $ and buy a bigger WAN link

LAN LAN


Being responsible for something you can’t control

STRESS


USE OWN BUDGET

STORAGE ADMIN SOLVING REPLICATION PROBLEM

How does Storage Admin solve a replication problem?

1. Ask CIO for larger RPO

2. Ask CIO to enforce end-users store less data

3. Ask Network Admin to spend $ and buy a dedicated WAN link

4. Ask Network Admin to spend $ and buy a bigger WAN link

5. Storage Admin spend $ and buy replication product that does dedupe

6. Storage Admin spend $ and buy replication accelerator


HOW IT WORKS:

DEPLOYING REPLICATION ACCELERATOR

Step 1: Install Silver Peak software on server (15 mins )

Step 2: Point Storage Replication to Silver Peak (5 mins)Step 3: Start optimizing

LAN LAN


RESULTS


REDUCE EQUALLOGIC REPLICATION TIMES FROM DAYS TO HOURS

0

50

100

150

200

250

300

Replication time (unoptimized WAN)Replication time (with Silver Peak)

Repl

icati

on T

ime

(hou

rs)

Before: 5 daysAfter: < 24 hours

Before: 10 daysAfter: 5.5 hours

Before: 90 hoursAfter: 15 hours

(EQL lab testing)


0

20

40

60

80

100

120

140

160

180

200

Replication time (unoptimized WAN)Replication time (with Silver Peak)

REDUCE COMPELLENT REPLICATION TIMES FROM DAYS TO HOURS

Repl

icati

on T

ime

(hou

rs) Before: 180 hours

After: 7 hours

Before: 7 hoursAfter: 4 hours


SIMULATED ATLANTA TO DALLAS OVER MULTIPLE BANDWIDTHS

45Mbps 155Mbps 1Gbps0

1020304050607080 70.6 66.48

72.72

15.532.62 2.45

W/O SPWith SP

WAN Bandwidth

Repl

icati

on H

ours

SILVER PEAK + DELL JOINT TESTING RESULTS

*ATL to Dallas (40ms); 1TB data set; MPLS WAN with 0.1% loss


WRAP-UP


FIX LATENCY AND LOSS

Latency

Loss

Bandwidth (Deduplication)

MY DATA IS ALREADY DEDUPED


THANK YOU!

Colm FoleySilver Peak Channel & Alliance Sales [email protected]

Strictly Confidential | © 2012 Silver Peak Systems, Inc. All Rights Reserved. May 22nd, 2013...

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Transcript of Strictly Confidential | © 2012 Silver Peak Systems, Inc. All Rights Reserved. May 22nd, 2013...