IBM System Storage DS3400/Express

honorableclunkΛογισμικό & κατασκευή λογ/κού

30 Οκτ 2013 (πριν από 4 χρόνια και 14 μέρες)

135 εμφανίσεις

System Storage
TM

© 2007 IBM Corporation

IBM Internal and IBM Business Partner Use Only

IBM System Storage

DS3400/Express


Technical Presentation


®

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling



DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400



© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling


DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3200, DS3300, DS3400 Introduction

IBM System Storage DS3200


Direct
-
attach configuration


3
-
Gbps SAS connection to a host


Solution for System x servers







IBM System Storage DS3400


Direct or FC SAN
-
attach configurations


4
-
Gbps FC with auto
-
negotiating for 1
-
Gbps or 2
-
Gbps networks


Solution for System x servers, System p servers (running AIX or Linux),
BladeCenter servers, and BladeCenter Power blade servers

(running AIX
or Linux)

IBM System Storage DS3300


IP SAN
-
attach configurations


1
-
Gbps iSCSI connection to an IP switch


Solution for System x servers, BladeCenter servers,
and BladeCenter Power blade servers

(running Linux)


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling


DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Redundant, hot
-
swappable components

Intuitive DS3000 Storage
Manager software

Support for up to 16
Storage Partitions

Online capacity expansion up to 48 drives with EXP3000s

2U enclosure supporting up to 12 SAS and/or SATA drives

Support for FlashCopy
and VolumeCopy

Dual
-
active RAID controllers with mirrored, battery
-
backed cache

DS3000 Series
-

Common Features

Supports tiered storage with SAS and SATA intermix support

Telco model supports
-
48v DC power supplies

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling


DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

IBM

System

Storage DS3400 at a Glance


Models
1726
-
41X

single controller, 1726
-
42X

dual controller


1726
-
41E

single controller Express, 1726
-
22E

dual controller Express


1726
-
42T

dual controller Telco DC Power Model


RAID controller


Dual active


Cache per controller
-

512 MB battery
-
backed cache with 1 GB upgrade
option


Host interface


Two 4Gbps FC host ports per controller



Drive interface


One 3
-
Gbps SAS Drive expansion port per controller



Drive Intermix


SAS and SATA intermix supported in DS3400 controller and EXP3000


RAID levels



0, 1, 3, 5, 10


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

IBM

System

Storage DS3400 at a Glance (cont’d)


Maximum drives supported


48 SAS or SATA drives (using three EXP3000 expansion units
)


Storage partitions


2, 16


Rack support


19" industry
-
standard rack


Management software


IBM System Storage DS3000 Storage Manager


Warranty


Three
-
year limited warranty on parts and labor


Dimensions


Height: 8.7 cm (3.4 in.)


Depth: 55.0 cm (21.6 in.)


Width: 44.7 cm (17.6 in.)


Weight: approximately 17.2

kg (38.0

lb) for a standard unit; when fully
configured, 29.2

kg (64.5

lb)


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3400 Specifications


Two 4
-
GbpsFC host ports per controller


2U Enclosure


Daisy
-
Chain up to 3 additional EXP3000 enclosures (48 drives
total) per subsystem


Integrated Power Supply / Fan Module


3 Gb/s SAS Mid
-
plane


12 internal SAS HDD Connectors


Activity LEDs for each Slot


Bi
-
color Status LEDs for each Slot

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Tiered Storage Solution of Choice


The DS3000 series can cost effectively support an organization’s
entire range of data capacity requirements in a single disk system


Drive type

Throughput

RPM

Capacity

SAS







3 Gbps







15,000







73 GB

146 GB

300 GB

SATA





3 Gbps





7,200





500 GB

750 GB

1.0 TB*

* Excludes BladeCenter Boot Disk System

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3400 Controller


The DS3400 controller has:


1Gbps bus (64 bit,133 MHz PCI
-
X) between the core processor
and I/O chips


The “width” to handle large
-
block I/O and “speed’ to
process small
-
block I/O


A single memory that is
partitioned between processor
and data cache memory.


The I/O system core integrates
the XOR engine and processor.


Processor focuses on data
movement control


High
-
speed XOR engine
generates RAID parity

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

3 SAS host port per controller model

FC host ports

Ethernet

management port

Diagnostics port for servicing

SAS expansion port

Power Supply / Cooling

Disabled SAS port

DS3400 Controller


A Closer Look


The controllers, which insert from the rear of the module, support all external
connections. Each controller module houses a 515
-
watt power supply, dual
-
active fans,
and a battery charger.

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3400 Host Cabling


Direct
-
attach

Two node direct
-
attach cluster

Two node, One controller
direct
-
attach

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3400 Host Cabling


SAN
-
attach

High availability Cluster

Entry SAN with controller
-
level
fail
-
over

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Drive Type

DS3400 (FC)

Burst throughput

cache read (512k)

SAS

1,600 MB/sec

SATA

1,600 MB/sec

Sustained throughput

disk read (512k)

SAS

970 MB/sec

SATA

890 MB/sec

Sustained throughput

disk write (512k)

CMD

SAS

740 MB/sec

SATA

630 MB/sec

Burst I/O rate

cache reads (512 byte
)

SAS

110,000 IOPS

SATA

110,000 IOPS

Sustained I/O rate

disk reads (4k


R5)

SAS

21,500 IOPS

SATA

4,600 IOPS

Sustained I/O rate

disk writes (4k
-

R5)

CMD

SAS

4,700 IOPS

SATA

1,000 IOPS

Number of drives used for benchmark test

and code thread

SAS

48 3Gb drives
-

6.70 code

SATA

48 3Gb drives
-

6.70 code

Updated 12/10/2007

Performance

Notes:

1.
SAS Drives were benchmarked with dual controllers


2. Performance results achieved under ideal circumstances in a benchmark test environment. Actual customer results


will vary based on configuration and infrastructure components.


3. The number of drives used does not reflect an optimized test config. The number of drives required could be lower/higher.


4. 1532 performance results achieved with the QLogic 4060 iSCSI HBA



Notes:

1.
Drives were benchmarked with dual controllers


2. Performance results achieved under ideal circumstances in a benchmark test environment. Actual customer results


will vary based on configuration and infrastructure components.


3. The number of drives used does not reflect an optimized test config. The number of drives required could be lower/higher.




© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling


DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Figure 1

Valid Cabling

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Figure 2

Resulting in Non
-
Redundant Enclosure Access

Cabling Error

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Figure 3

Resulting in Non
-
Redundant Enclosure Access

Cabling Error

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Mis
-
wire Reporting



When a Mis
-
wire condition is detected the RAID controller
firmware will report the following:


A “Needs Attention” condition


A critical MEL event indicating the presence of the Mis
-
wire Condition


A Recovery Action (Recovery Guru) indicating the Mis
-
wire


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

“Needs
-
Attention” Condition



The presence of a SAS Mis
-
wire condition is graphically
reported to the user in the form of a “Needs Attention” condition


When the Mis
-
wire condition is corrected, the “Needs Attention”
condition will be removed.


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling


DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3000 Storage Manager

Based on 6th generation DS4000
Storage Manager code

Task
-
oriented user
interface is intuitive
and simple

Supports RAID levels
0, 1, 3, 5 and 10

Summary page is the “landing page” providing an
“at
-
a
-
glance” portal
-
view of the system

Recovery Guru and
email diagnostic alerts

Initial Setup Tasks
dialog box provides

six steps to setting up
the disk system


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Benefits of Premium Features

Storage
Partitioning


Allows the sharing of capacity across multiple servers


User can define which server(s) can have access to specific data

FlashCopy


Supports utilization of separate data copies, for a variety of uses
such as hot backups or application testing


No affect to production data


remains online accessible


Instantaneous

VolumeCopy


Allows for redistribution of data from older, slower disk drives to
faster and/or higher capacity drives


Optimizes application performance and/or capacity


Complete separate physical copy of data that can be used for
analysis or testing with no effect on production data

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

LUN

0

LUN

1

LUN

2

LUN

0

LUN

1

LUN

0

LUN

1

Logical

partition

A

Logical

partition

B

Logical

partition

C

unmapped volumes

Host A

Host B

Host

Group C

What is Storage Partitioning?


A logical unit consisting of one
or more volumes that can be
accessed by a single host or
shared among hosts


One or more volumes are mapped
to an individual host or host group


This volume
-
to
-
LUN mapping

defines what host or host group

will have access to the volume


Partition access is maintained

at the controller level


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

A point
-
in
-
time image can be created in seconds

What is FlashCopy?


A point
-
in
-
time (PiT) image of a
logical drive


Logical equivalent of a physical
copy


Features:


Instantaneous copy


Requires less disk space than a full
copy


Map
-
able to any host


Can be read from, or written to


Primary uses:


PiT backup image


File restoration


Data mining / analysis


Base

Logical
Drive

Physical


FlashCopy

Logical Drive

FlashCopy

Repository

Logical

C’

A B C

A B C

C’

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

What is VolumeCopy?


Complete (byte
-
by
-
byte) PiT
replication of one logical drive

(source) to another (target)
within a storage system


Target logical drive also referred to
as a clone


Eliminates I/O contention

on the primary logical drive


Primary uses:


Full PiT data set available for

analysis, mining, testing, backup


Migrating data between

storage tiers


Production Server

Analysis Server

PiT

Clone

Source
logical
drive

Volume

Copy

Fast copy of data with no server cycles

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3000 Series Advanced Features

DS3000 1GB Cache Memory Upgrade

39R6517 (per controller)

Enabled

DS3000 FlashCopy & VolumeCopy License


39R6535 (per DS3000)

Enabled

DS3000 VolumeCopy License

39R6534 (per DS3000)

Enabled

DS3000 FlashCopy Expansion License

39R6533 (per DS3000)

1
-
64 FlashCopy Images

DS3000 Partition Expansion License

39R6536 (per DS3000)

5 to 16 partitions

Out
-
of
-
the
-
box: 4 partitions

Attachment License for 1
-
3 EXP3000 expansion units, and

Windows and Linux on Intel Hot Attach License

This solution is “complete” for the majority of typical storage workloads, however, when an organization’s
storage requirements grow, the DS3000 series can grow as well

Select from any of the Advanced Features Below

DS3000 AIX Host Attach License

13N1923

DS3000 Linux on Power Host

Attach License

44W2101

START HERE

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling


DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3000 Series SAS and SATA Intermix Support


Integration of SAS and SATA technologies within the same
DS3000 series disk system


SAS drives


High performance


Typically utilized for business critical and transaction
-
based
applications


SATA drives


Great cost/GB ratio


Generally deployed for near
-
line and secondary data where cost
presides over performance


Purchasing and storage deployment is
simplified!!


Organizations can purchase and deploy a single system for all levels
of their data

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3000 Series SAS and SATA Intermix Support


Integration of SAS and SATA technologies within the same
DS3000 series disk system


Summary page identifies drive type
and number of drives installed


SAS drives


High performance


Typically utilized for
business critical and
transaction
-
based
applications


SATA drives


Great cost/GB ratio


Generally deployed for
near
-
line and secondary
data where cost presides
over performance


© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Intermix Environments


Multiple drive offerings to satisfy
different requirements


Important to note:


Arrays can only created with the
same type of drives although drive
types can be mixed within an
enclosure


Hot spares can only be a spare for
like drives


Therefore, both SAS and
SATA hot spares are needed
in a mixed drive environment









Controllers

SAS

SAS

SAS

SAS

SAS

SATA

SATA

SATA

SATA

SATA

SATA

SATA

SATA

SATA

SATA

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SAS

SATA

SATA

SATA

SATA

SATA

SATA

SATA

SATA

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling


DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Interface
-

Which DS3000 is the Best Fit?

Interface Type

SAS

iSCSI

FC

DS3000 Disk System

DS3200

DS3200

DS3300

DS3300

DS3400

DS3400

Controller Configuration

Single

Dual

Single

Dual

Single

Dual

How many servers would you
like to directly attach?

1
-
3

1
-
3 HA

0

0

1
-
2

1
-
4 HA

Or


How many servers would
you like to attach via an IP
SAN or FC switch

0

0

Up to 16

Up to 16

Up to 16

Up to 16

Is high availability important?

No

Yes

No

Yes

No

Yes

What is the distance between
the host and storage system?

<8 meters

<8 meters

Unlimited

Unlimited

<10,000
meters

<10,000
meters

How important is IOPS
performance?

Important

Important

Important

Important

Most
important

Most
important

How important is throughput
performance?

Important

Important

Not very

Not very

Most
important

Most
important

How important is affordability?

Important

Important

Most
important

Most
important

Not very

Not very

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Quick Reference


Interface Options

Interface Type

SAS

iSCSI

FC

Performance

Better

Good

Best

IT Expertise

Server experience

Network Experience

Storage Experience

Distance

Limited




8 meters

Infinite

Adequate




10,000 meters

Cost

$

$

$$$

Server attach

Three or less

Unlimited

Unlimited

Availability

Better

Good

Best

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3000 Selection Matrix

START

Does your business require connecting your storage to over three servers within the next several years?

Do you need Disk for your blade centre?

Do you currently have a FC SAN you would like to add additional storage
to?



NO

NO

YES

YES

NO

Which is more important to you… Affordability or performance?

PERFORMANCE

AFFORDABILITY

DS3400, DS3300 OR DS3400?

Analyze your customer’s requirement to decide which DS3000 offering meets their needs

YES

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Agenda


DS3000 Series of Disk Systems Overview


DS3000 Series Common Features


DS3400 Disk System


DS3400 At a Glance


DS3400 Specifications


DS3400 Controller and Performance


DS3400 Cabling


DS3000 Storage Manager


DS3000 Series SAS and SATA Intermix


DS3000 Interface Options and Selection Matrix


Differences between DS3200, DS3300 and DS3400

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3200

DS3300

DS3400

Three
x4 SAS

connectors per
controller (host IO interface)

Two
RJ45 Ethernet

data
connectors per controller
(host IO interface)

Two 4 Gbps
FC
connectors
per controller (host IO
interface)

Intel X
-
Scale 80331 (667MHz)
processor

Same

Same

SAS back
-
end interfaces using the
LSI1068 SAS IOC

Same

Same

512MB or 1GB DDR II (per
controller)

Same

Same

Clustering

Same

Same

Up to 255 volumes

Same

Same

Supports Storage Manager and
SMcli

Same

Same

Media Scan with or without
consistency check

Same

Same

Major Event Log (MEL) for error
logging

Same

Same


DS3000 Series Comparison

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

DS3000 Series Comparison (cont’d)

DS3200

DS3300

DS3400

HotAdd and Dynamic logical drive
Expansion

Same

Same

RAID Level Migration using
SMcli

Same

Same

Physical disk state indications

Same

Same

IAF (immediate available feature)

Same

Same

Cache Battery Backup:

3 Cell (18650) Li
-
ion Battery Pack

Same

Same

Up to three additional EXP3000
enclosures for a total of 48
physical disks

Same

Same

RAID controller FW: 06.70.xx.xx

Not: When updating firmware, the Storage
Manager software may also require an
update. Consult the compatibility matrix
and if an update is required, always update
the Storage Manager software first.


Same

Same

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Comparison with IBM BladeCenter Boot Disk System

DS3200

BladeCenter Boot Disk System*

Three
x4 SAS

connectors per controller (host IO interface)

Same

Intel X
-
Scale 80331 (667MHz) processor

Same

SAS back
-
end interfaces using the LSI1068 SAS IOC

Same

Clustering

Same

Supports Storage Manager and SMcli

Same

Media Scan with or without consistency check

Same

HotAdd and Dynamic logical drive Expansion

Same

RAID Level Migration using SMcli

Same

Physical disk state indications

Same

Cache Battery Backup: 3 Cell (18650) Li
-
ion Battery Pack

Same

Up to three EXP3000 enclosures for a total of 48 physical disks

No EXP3000 expansion

RAID controller FW: 06.70.xx.xx

FW: 06.30.xx.xx

SAS and SATA drive support

SAS only

Major Event Log (MEL) for error logging

Same

*This device is only supported as a boot appliance.


No general data storage allowed.

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only

Legal Information and Trademarks

The following terms are trademarks of International Business Machines Corporation in the United States, other countries, or b
oth
:

IBM, IBM Logo, on demand business logo, TotalStorage, Enterprise Storage Server, xSeries,BladeCenter, eServer, ServeRAID and

FlashCopy.

The following are trademarks or registered trademarks of other companies.

Intel is a trademark of the Intel Corporation in the United States and other countries.

Java and all Java
-
related trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc., in the United
States and other countries.

Lotus, Notes, and Domino are trademarks or registered trademarks of Lotus Development Corporation.

Linux is a registered trademark of Linus Torvalds.

Microsoft, Windows and Windows NT are registered trademarks of Microsoft Corporation.

SET and Secure Electronic Transaction are trademarks owned by SET Secure Electronic Transaction LLC.

UNIX is a registered trademark of The Open Group in the United States and other countries.


* All other products may be trademarks or registered trademarks of their respective companies.


Notes:

Performance is in Internal Throughput Rate (ITR) ratio based on measurements and projections using standard IBM benchmarks in

a
controlled environment. The
actual throughput that any user will experience will vary depending upon considerations such as the amount of multiprogrammin
g i
n the user's job stream, the I/O
configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual

us
er will achieve throughput
improvements equivalent to the performance ratios stated here.


IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms appl
y.


All customer examples cited or described in this presentation are presented as illustrations of the manner in which some cust
ome
rs have used IBM products and the
results they may have achieved. Actual environmental costs and performance characteristics will vary depending on individual
cus
tomer configurations and
conditions.


This publication was produced in the United States. IBM may not offer the products, services or features discussed in this do
cum
ent in other countries, and the
information may be subject to change without notice. Consult your local IBM business contact for information on the product o
r s
ervices available in your area.


All statements regarding IBM's future direction and intent are subject to change or withdrawal without notice, and represent
goa
ls and objectives only.


Information about non
-
IBM products is obtained from the manufacturers of those products or their published announcements. IBM ha
s not tested those products and
cannot confirm the performance, compatibility, or any other claims related to non
-
IBM products. Questions on the capabilities of

non
-
IBM products should be
addressed to the suppliers of those products.


Prices subject to change without notice. Contact your IBM representative or Business Partner for the most current pricing in
you
r geography.


This presentation and the claims outlined in it were reviewed for compliance with US law. Adaptations of these claims for use

in

other geographies must be reviewed
by the local country counsel for compliance with local laws.

© 2007 IBM Corporation

System Storage
TM

IBM Internal and IBM Business Partner Use Only



NOTICES AND DISCLAIMERS

Copyright © 2007 by International Business Machines Corporation. All rights reserved.


No part of this document may be reproduced or transmitted in any form without written permission from IBM Corporation.


Product data has been reviewed for accuracy as of the date of initial publication. Product data is subject to change without
not
ice. This
document could include technical inaccuracies or typographical errors. IBM may make improvements and/or changes in the produc
t(s
) and/or
program(s) described herein at any time without notice. Any statements regarding IBM's future direction and intent are subjec
t t
o change or
withdrawal without notice, and represent goals and objectives only. References in this document to IBM products, programs, or

se
rvices does
not imply that IBM intends to make such products, programs or services available in all countries in which IBM operates or do
es
business. Any
reference to an IBM Program Product in this document is not intended to state or imply that only that program product may be
use
d. Any
functionally equivalent program, that does not infringe IBM's intellectually property rights, may be used instead.


THE INFORMATION PROVIDED IN THIS DOCUMENT IS DISTRIBUTED "AS IS" WITHOUT ANY WARRANTY, EITHER EXPRESS OR
IMPLIED. IBM EXPRESSLY DISCLAIMS ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
NONINFRINGEMENT. IBM shall have no responsibility to update this information. IBM products are warranted, if at all, accordin
g t
o the terms
and conditions of the agreements (e.g., IBM Customer Agreement, Statement of Limited Warranty, International Program License
Agr
eement,
etc.) under which they are provided. Information concerning non
-
IBM products was obtained from the suppliers of those products,
their
published announcements or other publicly available sources. IBM has not tested those products in connection with this public
ati
on and cannot
confirm the accuracy of performance, compatibility or any other claims related to non
-
IBM products. IBM makes no representations

or
warranties, expressed or implied, regarding non
-
IBM products and services.


The provision of the information contained herein is not intended to, and does not, grant any right or license under any IBM
pat
ents or
copyrights. Inquiries regarding patent or copyright licenses should be made, in writing, to:


IBM Director of Licensing

IBM Corporation

North Castle Drive

Armonk, NY 1 0504
-

785

U.S.A.