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Enterprise Data Replication

By Bob Bryar

March 2002 for SearchStorage

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Objective Using state of the art technology, IT Executives must execute

tactically against a strategic vision that will provide all Servers within the corporation, a seamless connection topology to their most valued corporate resource, data storage

The chosen topology needs to meet several key criteria: Return On Investment (ROI) Increased Operational Efficiency Maintain a High Level of End User Satisfaction Meet Business Drivers for Recovery

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The Data Struggle

Which tools will you utilize to manage and protect the data?

Managing systems diversity and dispersion of data

Ensuring the speed and availability of data

Ensuring the reliability and availability of systems

Ensuring Recovery of Data is obtainable

The Data Explosion

The Challenge

4Source: Gartner Dataquest, September 2000

Backup and Recovery

77%77%

Capacity

61%61%

Management

57%57%

None

5%5%#1#1

Companies are seeking Technological Solutions to many Storage issues!

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Evolution of Storage Architectures

SCSI, FC

Storage Centric

ApplicationServer

ApplicationServer

File System

RAID Control

SCSI, FC

Server Centric

ApplicationServer

ApplicationServer

File System

JBOD

Network Centric

ApplicationServer

ApplicationServer

File System +RAID Control

10/100, GbE, ISCSI

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Storage Spending Will Surpass Servers in IT $$

Storage is now a separate, strategic decision

50%50%

Server versus Storage SpendingResearch from 1999

Server versus Storage Spendingprojections for 2003

75%

25%

“By 2003, servers will become peripheral to storage”Forrester Research

Storage Spending

Server Spending

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Application

LogicalVolume

Manager

SystemRaw

Partition

O/SFile

System

DBI/O’s

SCSI Device Driver

SCSI HBA

Overview of Typical SCSI I/O Command

to Disk

Processor / ServerComplex

Block I/O

Substitute SCSI HBA For FC HBA

In SAN Environment

SCSI I/O INTERNAL

SCSI I/O EXTERNALSAN

SAN

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Data is overwhelming the IT department

Virtual Storage Storage Area

Networks Availability

Strategies Replication Mirroring

Infrastructure DWDM SAN

Monitoring

Asset Management

Backup

ArchiveReplication

Capacity Allocation

Performance

Storage ResourcesSecurity

Sunssss

Sunssss

Sunssss

Disk ArraysTape Library

Sunssss

DatabaseServer

How do you handle the growth?

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Change Management

J40 J40

Operating SystemKernel1Kernel2Kernel3Patches

Upgrades

R50

J40Thin NodeHigh NodeWide Node

R50

J40

Thin NodeHigh NodeWide Node

ApplicationsData

Configure hardware CWS build Install nodes 72

hrs. Configure nodes to ADSM server 3 hrs. Application Restores

Kernel

72 hrs.to3 hrs.

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Elimination of Backup Window

Off-host backup and recovery

Application-aware Direct disk to tape I/O

via external data mover

Enhanced performance

Multi-platform and scalable

STORAGE

FIREWALL

WEB

mobile

SAN

Backup Agents

Data Mover

ERPCRM

MAIL

eCOM

eAPPs

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Availability Must be Engineered into the Data Flow

RouterFirewall

DatabaseServers

ApplicationServer

ApplicationServer

ApplicationServer

StaticWeb

Servers

StaticWeb

Servers

StaticWeb

Servers

StaticWeb

Servers

Cache Server

LB Server

SANSwitch

D1 D2 D3 D4

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Integration must occur between all Vendors

RouterFirewall

DatabaseServers

ApplicationServer

ApplicationServer

ApplicationServer

StaticWeb

Servers

StaticWeb

Servers

StaticWeb

Servers

StaticWeb

Servers

Cache Server

LB Server

GenuityExodusVerizon

Outsourcing trend is not slowing down

MUST create service levels with teeth

xSP market is expanding and

getting legitimate

All moving to fully managed solutions

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Physical

Network

Protocol

OperatingSystem

Database

DatabaseInterface

ProgrammingLanguage

Application

Twinax Twinax

SNA

UTP

Ethernet

TCP/IP

Windows NT

Flat File

UTP

Ethernet

TCP/IP

Windows NT

SQLServer

UTP

Ethernet

IPX

Windows NT

Flat File

DBF

Clipper

WarehouseInventoryControl

OS/400

DB2/400

RPG

Mfg.Finance

Warehouse

Windows NT

DBF

FoxPro

Payroll

Ethernet

Access

SQL

Fo

rms

FinancialReporting

UTP

Ethernet

SNA

OS/400

DB2/400

RP

G

E

the

rne

t

TCPIP

Windows NT

SQLServer

SQL

Po

wer

Bu

ilder

InformationWarehouse

Common operating platforms

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Outsourcing data and content storage

The Data Management Struggle

Gartner estimates that by the end of 2001, 25% of corporate IT organizations will outsource or consider outsourcing some aspect of storage infrastructure or management

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Discussions about internal recovery

Why can’t we do it ourselves? We feel like we’re paying a lot

of money and not getting value! I’ve got all the components:

Network Diverse Centers Knowledge in High

Availability Lower Cost of Technology

What are companies struggling with?

Change Management Cost of maintaining dual

environments Validating the strategy and

capability Methodology Effort

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What is the data protection trend?

AdvancedRecovery Solutions

TraditionalHot Site

Operational Availability

on a Continuous

Basis

NetworkStorageTomorrow

Customer Data Center

Customer Data Center

Recovery Center or Internal Solution

Today

Recovery CenterCustomer Data Center

Yesterday

Customer Data Center

Recovery Center or Internal Solution

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Choosing the Technology

•IBM, STK (PPRC)

•EMC (SRDF)

•HDS (TrueCopy)

•STK (PPRC)

•Network Appliance (SnapMirror)

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Three - Node ring: Using DWDM

.

.

Production Center

OPTera Metro

Test Center

ESCON

• All three sites appear as one processor complex

FICON

GEOPLEX

Fibre ChannelGigabit Ethernet

OC-3/12/48

.

.

OPTera Metro

ESCONFICON

GEOPLEX

Fibre ChannelGigabit Ethernet

OC-3/12/48

. .

ESCONFICON

GEOPLEX GbE

FC OC-3/12/48Recovery Center

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Remote Site

MVSNT

Local Site

MVS

NT

Tape

EMC

StorageNT

Tape

Stor

age

Dark Fiber / Channel Extension

Storage with Recovery Objectives

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Replication from Production to Recovery Location

T1 / T3

T1 / T3

Customer Production # 2

TSC - Carlstadt

SANF760

F760

200GB

SAN

400 GBSANF760

F760

200GB

Customer Production # 1

CustomerSharedStorage

Security via O/S Tools

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Data Replication UtilizingSNAP Technology

Switch

Recovery Center

MIPs / MHz Recovery

Shared / Dedicated

Customer Site

SD

Sunmicrosystem

P

R

O

C

E

S

S

O

R

S

• ASYNCHRONOUS IP Data Replication

With Restore Capability

Switch

SNAP Technology

Data Replication

Managed Communications Links

T1 – T3 – OCX

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Mainframe Data Replication Services using IP

Switch

Recovery Center

• MIPs / MHz Recovery

Future Implementation

Customer DATA CENTER

IBM

– O

S/3

90 P

RO

CE

SS

OR

/ U

NIS

YS

220

0

• ASYNCHRONOUS IP Data Replication

With BCV Restore Capability

Switch

• Symmetrix SRDF

Data Replication

Comdisco

Managed Communications Links

T1 – T3 – OCX

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Customer Provided Storage Services

Many Systems, Merging Technologies

Midrange Systems

Continuity Service Provider

SRDF / Fibre Channel

MVS Storage

Switched Fabric

Mainframe