© 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
© 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
© 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
© 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
© 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
© 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
© 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
© 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 BMBroad 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
© 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
© 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
© 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 #n150-200 GB/manager
Management costs =
60% of storage
budget
Co-located
Storage "Islands"
Server #1 Server #2 Server #n300-400 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
© 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
© 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
© 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
© 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
© 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 Networkor
Storage
Area
Network
FC Switch or HubServer 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
© 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 ServersBenefits:
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 ServersNAS 300G
© 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
© 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 ServerExisting 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 ServerIFS
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
© 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 ProtocolIP Network
Ethernet Connection
iSCSI Gateway
Fibre Channel Connection
© 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.
+
+
© 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
© 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 storageIP LAN
iSCSI
Client
Software
IP SAN
SCSI Protocol
iSCSI Appliance
Pooled storageiSCSI 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
© 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:
© 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 ProtocolNAS Gateway
(CIFS,NFS,HTTP,FTP,etc) File Protocol S A N NAS Gateway IPNetwork Clients & Servers SCSI ProtocolNetwork Attached Storage
NAS Appliance IPNetwork Clients & Servers (CIFS,NFS,HTTP,FTP,etc) File Protocol
Direct Attached
SCSI or FCP
Application Server SCSI ProtocoliSCSI (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 SANFibre Channel SAN
NAS
LAN IP Network NAS NASMDC
SANNAS / SAN Hybrid
SAN with SANergy
LAN IP Network