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© Copyright IBM Corporation 2001. All rights reserved.

© Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Storage Networking:

The New Imperative

ERP

Geoff Cole

IBM EMEA Senior Advisor

Storage Networking Solutions

Distributed Data Explosion

(2)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Data is doubling every year

IT staff budgets remain flat

Storage managers must

increase efficiency more than

60% per year

(Source: IDC 8/00)

Skills shortages will increase

Unfilled IT positions growing at

more than 5% per year

More than 1.6 million IT

positions will be unfilled by 2002

The networked world makes

switching jobs much easier

Solving Today's Data Puzzle

H P

UNIX

M V S

OS/400

AIX

DEC

UNIX

Sun

UNIX

N T

UNIX

SGI

different

support staff

different

data

formats

different

operating

environments

different

file systems

& databases

different

connection

technologies

increased costs of

support & admin

increased

software &

maintenance

costs

inefficient use

of computing

resources

lack of

adherence to

standards

difficult to

manage costs &

assets

increase security &

data integrity risks

difficult to

integrate data &

applications

Increased Total Cost of Ownership &

Reduced IT efficiency

A Storage Management Challenge

Client / Server Model of Computing

Islands of Information

Distributed servers and storage

Separate storage management

Separate islands of information

Inefficient use of resources & skills

Multiple copies of data

More complex & higher costs

Disk and Tape Storage Consolidation

NetWare

Solaris

HP/UX

OS/400

AIX

NT/2000

Most

costly

Consolidated Storage

Consolidated storage systems

Consolidated storage management

Consolidated enterprise data

Support enterprise applications

Reduce complexity & lower costs

HP/UX

AIX

NetWare

Solaris

OS/400

NT/2000

(3)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

1998

1999

2000

2001

2002

2003

0

10

20

30

40

50

60

70

80

90

100

0

10

20

30

40

50

60

70

80

90

100

DAS

NAS

SAN

SAN and NAS Adoption Rate

Projections

Source: Salomon Smith Barney ; Aug 2000

% Revenue

NAS & SAN - Definitions

Server-to-server

Server-to-server

Server-to-server

Server-to-server

Server-to-storage

Server-to-storage

Server-to-storage

Server-to-storage

Storage-to-storage

Storage-to-storage

Storage-to-storage

Storage-to-storage

Definition:

Centrally managed high speed

networks of

multi vendor

storage subsystems,

applications servers, clients and networking

hardware that allow companies to

exploit

the

value of

their business information

via

universal access

and

sharing

of resources.

Storage Area Network

Local Area Network

Definition :

Network Attached

Storage or NAS is a LAN-Attached ,

high-performance

storage appliance that

provides

shared data

to clients and other

servers on that network

Clients

Local Area Network

(4)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

NAS & SAN - Positioning

Task Specific Storage devices

NFS/CIFS File Sharing Appliance

Backup/Archive Appliance

3466 Network Storage Manager

Easy to Add Storage

Plug-and-Play

Connects directly to existing LAN/WAN

Standard protocols support mixed platforms

Non-disruptive storage growth / no impact on clients

Lessens need for skilled IT resources

Potential Performance Issues

LAN traffic and LAN speed

TCP/IP overhead

General Purpose Storage Infrastructure

Capabilities of file serving and data sharing

Offloads LAN/WAN Network

f

rom Backup/Archive workloads

Massive scalability

Superior Performance

Large volumes of data

Large suite of Storage Management

Tools

Local Area

Network

NAS Appliance

Storage Area Network

Local Area

Network

Versus

NAS & SAN - Positioning at a Glance

Disk pooling / consolidation for file serving

applications (file I/O)

Heterogeneous file serving (NT, UNIX, HTTP,

FTP, Novell) minimises need for multiple

copies of files on distributed users

Fast , low cost deployment of storage

exploiting existing LAN infrastructure

Enhanced backup v direct attached & point in

time data copy

Reduced cost of ownership & easier

management; Limited IT skills in-house

Local Area

Network

NAS Appliance

Disk and tape consolidation for high

performance & block level I/O applications

Best of breed storage selection plus best

backup & disaster recovery solutions

Continuous data availability and reliability

Ease of data migration

Non disruptive scalability

Reduced cost of ownership

High level IT skills in-house

Storage Area Network

Local Area

Network

(5)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

DAS uses Block I/O

SCSI protocol

IP network

Application

server

Block I/O

DAS

Application makes file I/O

request to file system in

server, which initiates

block I/O to disk

Application initiates raw

block I/O to disk

OR

SAN uses Block I/O

IP network

Fibre Channel network

Application makes file I/O

request to file system in

server, which initiates block

I/O to SAN attached disk

Application initiates raw

block I/O to disk

(6)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

NAS uses File I/O

File system in NAS

appliance initiates

block I/O to NAS

integrated disk

Application server

directs file I/O request

over the LAN to

remote file system in

the NAS appliance

IP network

Application

server

IP protocol

File I/O

NAS Appliance

SAN Hardware Base

Connectivity

Management

Exploitation

Se

rv

ices

a

n

d

S

u

p

p

o

rt

SAN from initiative to

implementation

Reduced time & cost to implement

Skilled Resources

SAN Integration

Extract the

value of data

Disk & Tape Pooling

Outboard data movement

Clustering, Data Sharing

Zero latency, one-touch management

Centralized focal point

Reduced cost

Flexibility and automation

Migration

paths

investment protection

Distance

Speed

Reliability

Any storage to any

system

SAN-enabled

Native

attachments

SAN aware

IBM Storage Area Network

Initiatives

(7)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

IBM Server Platforms

zSeries : S/390

FICON ready

pSeries : RS/6000 & Numa-Q

Fibre Channel ready

iSeries : AS/400

Fibre Channel ready

xSeries : Netfinity

Fibre Channel ready

Enterprise

Solutions

Work Group

Solutions

Departmental

Solutions

Enterprise

Storage

Server

Modular

Storage

Server

(Fibre Channel)

7133

& SLIC

(SSA plus

SCSI / FC attach

via Gateways)

FAStT200/FastT500

Fibre Channel

EXP Series

SCSI

7133

D40

SSA

IBM Disk Storage Products

(8)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Enterprise

Solutions

Work Group

Solutions

Departmental

Solutions

3590 / 3494

& Virtual

Tape

Server

Ultrium

UltraScalable

& Scalable

Libraries

Ultra SCSI & FCP

Ultrium AutoLoader

Ultra SCSI & FCP

3570

SCSI & SDG to FCP

IBM Tape Storage Products

SCSI

ESCON

FCP

FICON

3575 Library

Ultra SCSI

SDG to FCP

I BM

Broad range of Open standards-based

Broad range of Open standards-based

TotalStorage SAN solutions

TotalStorage SAN solutions

IBM Enterprise SAN

Departmental Servers

UNIX & Windows

IBM Serial

Router

Serial Disk

IBM,

McDATA

Switches

MSS

(9)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Distance

I can't get across

the room with a

25 metre limit.

How can I get to

the next floor, or

next building ?

No sharing of resources

Can only consolidate resources by

co-locating equipment

No server access to stranded

resources

or enterprise-class storage and

tape

Costly resource management

The Problem

10+ Km

The IBM SAN Solution

Connection up to 10+ Km

Sharing of resources

Logical consolidation of resources

Improved server access to

enterprise-class disk and tape

Simplified resource management

Storage Consolidation - The

Problem

All workgroup servers directly attach

to their own departmental class

storage devices via SCSI (or other

interconnect). Data cannot be

shared

Some storage devices are at full

capacity; others are not fully used

Low end storage devices often do

not have high availability features

(e.g. RAID)

Advanced functions may not be

available (e.g. remote copy, data

movement and instant replication)

Storage and data management is

complicated and time consuming

Data may or may not be backed up

(10)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Storage Consolidation - The IBM SAN Solution

Enterprise

class disk array

Fibre Channel Switch

All servers attached to an

enterprise class storage

system

Highly reliable and

redundant

Capacity of pooled disk

resource can dynamically

allocated to users needs

Single copy of data available

to all users

Centralised management

and backup by IT

department

Port Connectivity - The Problem

Enterprise

class disk array

All Enterprise disk

(11)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Port Connectivity

The IBM SAN Solution

Enterprise

class disk array

Fibre Channel Switches or Directors

GroupB

Group C

Group D

Group A

6

6

6

6

6

6

6

6

Port consolidation

Allows additional access to disk storage

No loss of reliability

Source: IDC ; & ITCentrix Inc. (1999)

Decentralized

Storage "Islands"

Server #1 Server #2 Server #n

150-200 GB/manager

Management costs =

60% of storage

budget

Co-located

Storage "Islands"

Server #1 Server #2 Server #n

300-400 GB/manager

Management costs =

40% of storage budget

SAN

Consolidated Storage

(SAN)

2000: up to 700 GB/manager (30% of budget)

2001: up to 1500 GB/manager (15% of budget)

Future: up to 2500 GB/manager (10% of budget)

Reduce management costs & improve asset utilization

(12)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Tape Consolidation

Corporate

Message

LAN

Enterprise

Tape

Library

Backup

Server

Tape

Drive

Tape

Drive

Tape

Drive

Disk

Array

The Problems

Backup causes extensive LAN traffic

Backup disrupts critical applications

Data growth pressures backup window

Directly attached tape limits sharing

Difficult to create tape pools

Inconsistent user policies for backup

Poor tape resource utilisation

Enterprise

class disk array

Fibre Channel Switch

Enterprise

Tape Library

The IBM SAN Solution

Use best of class technology

Consistent corporate backup policies

Data moves across high speed SAN

Phase 1 - LAN-free

Phase 2 - Server-free

IBM Tivoli LAN-free Backup/Restore

Data movement now on SAN, not LAN

High speed SAN for rapid recovery solution

Rapid Recovery,

Backup and

Archive Solution

Existing IP Network for Client/Server Communications

SAN Fabric

Storage

Manager

Client

Backup, Archive, HSM

Existing IP Network for Client/Server Communications

(13)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

IBM Tivoli Server-free

Backup/Restore

Offload busy servers

More rapid recovery solution

Rapid Recovery,

Backup and

Archive Solution

Existing IP Network for Client/Server Communications

SAN Fabric

Storage

Manager

Client

Existing IP Network for Client/Server Communications

Heterogeneous

Clients

(Workstations

or Servers)

Fibre

Channel

Network

Device-to-device

data movement

Shared

Storage

Devices

Storage

Manager

Client

Storage

Manager

Client

Storage

Manager

Client

Storage

Manager

Server

Control

Direct

Storage-to-storage

data movement

Business Recovery from Disasters

The Problem

Natural

Natural

Natural

(14)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Business Continuance

The IBM SAN Solution

2

3

1

4

FlashCopy

Source

Volume

or

LUN

Maintain remote

duplicate copy of data

files or volumes

Disk Mirroring

Synchronous Copy

Asynchronous Copy

Enabled by Fibre

Channel long distance

interconnection

Combine with Flash

Copy facility when

applicable for point in

time data replication

Example: IBM Peer-to-Peer Remote Copy

plus FlashCopy

Backup from remote subsystem while maintaining currency of remote copy

Minimizes system downtime for backups

Offloads local subsystem and server

PPRC

FlashCopy

Backup

Local site

(15)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Primary

Site

Magstar

Disaster

Recovery

Site

IBM SAN Remote Vaulting Solution

Critical data backed up to a tape library

Shortened recovery window

Electronic transport of critical data, no packing, shipping, or tracking

IBM FlashCopy Reduces Cost

Less bandwidth required with Flash Copy

Dump snapped off-site volumes to tape during non-prime shift

Long wave

FC connection

IBM NAS Solutions - from GBs to TB

(16)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Questions to ask when connecting remote servers to a SAN:

What are the distance considerations?

Is the cost of a Fibre Channel Port (per Server) and Fibre

Channel Switch/Hub cost effective?

Do you need Heterogenous file sharing/serving?

IBM

NAS

Gateway

IP Network

or

Storage

Area

Network

FC Switch or Hub

Server Area Network FC Distance Limited to 10 KM Maximum Mix of UNIX NT Servers

IBM NAS Gateway Implementation

IBM NAS Gateway Customer Example

Benefits

Storage Consolidation

Cost effective connection to SAN capacity

IBM SAN/NAS Integration

(17)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Storage consolidation with NAS 200 / 300

Needs:

To simplify data management of file servers

To simplify adding storage to file servers

Current Environment

LAN

Clients

Clients

Windows®

NT File

Servers

Windows

NT File

Servers

Proposed Solution

Benefits:

Consolidates file-server management

Easier storage management

Simplifies adding additional storage

LAN

Clients

Windows

NT File

Servers

Clients

Windows

NT File

Servers

NAS 200 / 300

with up to 3.24 TB

integtrated disk

Storage consolidation with NAS 300G

Needs:

Simplify data and storage resource

management of file servers

Simplify adding storage to file servers

Current Environment

LAN

SAN

(Fibre Channel)

Clients

Clients

Windows® NT File Servers Sun File Servers

Benefits:

Consolidates file-server management

Easier storage management

Simplifies adding additional storage

Proposed Solution

LAN

SAN (Fibre Channel) Clients Sun File Servers Clients Windows NT File Servers

NAS 300G

(18)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

File-server consolidation

with NAS 200 / 300

Current Environment

LAN

Clients

Clients

Windows

NT File

Servers

Windows®

NT File

Servers

Needs:

Simplify management of file servers

Simplify adding storage to file servers

Proposed Solution

LAN

Clients

Clients

NAS 300G

NAS 200 / 300

with up to 3.24 TB

integtrated disk

Benefits:

Reduce number of file servers

Heterogeneous file-sharing on the SAN

Simplifies storage management

Simplifies adding additional storage

Web Hosting

Current Environment

LANs,

WANs,

Web,

Database,

Transaction,

Mission

Critical,

Servers

(Fiber Channel)

SAN

Internal

Users

Surfers,

Shoppers

Business

Clients

N

eeds:

Increase storage due to business growth

Provide high speed, web streaming to clients

To share storage among multiple web servers

Keep costs low

Reduce CPU load on "Mission Critical" Servers

Solution

Database,

Transaction,

Mission

Critical,

Servers

SAN

(Fiber Channel)

LANs,

WANs,

Internal

Users

Surfers,

Shoppers

Business

Clients

NAS

200 /

300

Web

Server

Benefits:

High performance, dedicated Web Server

Minimize investment in additional Servers

Provide storage pooling

(19)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Data Sharing - The IBM SAN Solution

Tivoli SANergy -

SAN File Sharing for Work Groups

SAN File Server for

Authentication

Access control

Locking

Data placement

File level outboard services

LAN file sharing at the speed of a SAN

Heterogeneous server support with shared centralised storage

Full file and byte level locking

Compatible Open Standards

Window NT security with NTFS

UNIX security with UFS

Supports network-aware applications

Heterogeneous

Data Sharing

Solution

Active Data

Meta Data Server

Existing IP Network for Client/Server Communications

SAN Fabric

Existing IP Network for Client/Server Communications

Heterogeneous

Clients

(Workstations

or Servers)

Shared

Storage

Devices

Control

Meta Data Server

IFS

IFS

IFS

IFS

NT Client AIX Client Solaris Client SGI Client MacOS Client

IFS

Tivoli SANergy File Sharing via

IBM Network Attached Storage

300G

Fibre Channel SAN

Shared

Storage

Devices

NTFS

NTFS

NTFS

300G

SANergy

Metadata

Controller

1

2

3

300G MDC Server returns file

access,

locks and disk metadata

2

SANergy client redirects all I/O

over SAN as block I/O to disk

3

Client File I/O request to

300G SANergy MDC Server

1

Existing IP network for Client / Server communications

NFS

client

Windows

"client"

SANergy

client

File client does regular

redirected I/O across LAN

SANergy client traps file I/O and

(20)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

NAS & SAN

Not suited to all environments

Many customers have general purpose applications

they wish to exploit on storage network, but

NAS file serving is not appropriate

Fibre Channel SAN is too costly

A new direction

Internet SCSI (iSCSI

)

iSCSI is a new technology

iSCSI allows SCSI protocols to be transported over an IP Network

Connects Clients and Servers to Storage

Application Hosts

Block I/O Protocol

IP Network

Ethernet Connection

iSCSI Gateway

Fibre Channel Connection

(21)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

TotalStorage IP Storage 200i

Model 100

108 GB configuration

Model 200

720 GB configuration

(rack not shown)

Workgroup Model 100

Tower configuration

108 to 216GB capacity

Departmental Model 200

Rack mount configuration

216GB to 1.74TB capacity

Common Features

Pre-loaded optimized operating system

Designed to handle block I/O

10/100-Mbps or Gigabit Ethernet IP network

RAID 5 support

Simple to support w/ existing network/IP skills

iSCSI Clients for:

WindowsNT

Windows 2000

Linux

INDUSTRY

FIRST !!

IBM TotalStorage IP Storage 200i

iSCSI iClient

Software device drivers that initiate the SCSI request over IP to a

target server. These drivers will coexist with existing SCSI devices

without disruption. IBM will provide drivers for Windows (tm)

NT/2000 and Linux.

iSCSI iServer

Software to handle the SCSI over IP request on a target

appliance.

IBM Hardware Appliances

Hardware on which to base the iSCSI implementation, which includes

embedded storage on tower and rack mounted devices.

+

+

(22)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

iSCSI Characteristics

Exploits existing LAN infrastucture

Low cost network components

Utilises existing skills

No inter-operability concerns

Extended distance inter-connections

Wide area storage capability

Easy to manage

Use existing backup solutions and software

Benefits

iSCSI uses Block I/O

Application

server

IP protocol

Block I/O

IP network

Application I/O request

initiates SCSI block I/O

which is encapsulated in

TCP/IP and sent to disk

iSCSI appliance

"unwraps" the I/O from

TCP and reads/writes

block on disk

(23)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

IP LAN

iSCSI

Client

Software

SCSI Protocol

iSCSI Appliance

Pooled storage

IP LAN

iSCSI

Client

Software

IP SAN

SCSI Protocol

iSCSI Appliance

Pooled storage

iSCSI Connectivity

IP Storage 200i

Customer Segments

Who have:

Designed for:

Department/workgroups

Remote/branch/plant sites

Service providers (xSPs)

Mid-market customers

Pooled storage requirements

Database-intensive applications

Limited I/T skills/budget

(24)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

Database Solution...IP Storage 200i

Benefits:

Pooled / Centralized Storage

Non-disruptive growth

Centralized storage management

Utilized existing network/IP skills

Solution

High

Performance

Database and

Transaction

Servers

DataCenter IP

Infrastructure

IP Storage 200i

Pooled Storage

N

eeds:

Additional storage for database +

transaction servers

Limited IT skills

Pooled storage for availability, flexibility,

+ scalability

Low/Moderate Transaction Volume

Current Environment

DataCenter IP

Infrastructure

High Performance Database

and Transaction Servers

Block I/O Environment

Web Server & IP Storage 200i

N

eeds:

Add database applications to web

serving

Share storage among database

servers

Reduce SAN implementation costs

e.g. for small NT clients/servers

Current environment

LANs,

WANs,

NAS

pooled

storage

Internal

Users

Surfers,

Shoppers

Business

Clients

Benefits:

(25)

© Copyright IBM Corporation 2001. All rights reserved. © Copyright IBM Corporation 2001. All rights reserved.

IBM TotalStorage

SAN Attached

S

A

N

FCP

Application Server SCSI Protocol

NAS Gateway

(CIFS,NFS,HTTP,FTP,etc) File Protocol S A N NAS Gateway IPNetwork Clients & Servers SCSI Protocol

Network Attached Storage

NAS Appliance IPNetwork Clients & Servers (CIFS,NFS,HTTP,FTP,etc) File Protocol

Direct Attached

SCSI or FCP

Application Server SCSI Protocol

iSCSI (SCSI over IP) Gateway

IPNetwork iSCSI Agents SCSI Protocol iSCSI Gateway S A N SCSI Protocol

Storage Connectivity Options

iSCSI (SCSI over IP) Target

iSCSI Appliance IPNetwork iSCSI Agents SCSI Protocol

Storage Protocols

Internet Protocols

Transaction processing

Database processing

File sharing

DAS

LAN IP Network FC SAN

Fibre Channel SAN

NAS

LAN IP Network NAS NAS

MDC

SAN

NAS / SAN Hybrid

SAN with SANergy

LAN IP Network

SAN

NAS 300G

NAS 300G

LAN IP Network TCP/IP SAN iSCSI iSCSI

iSCSI SAN

iSCSI

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