(Building a Better Infrastructure)

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IBM System Storage

© 2007 IBM Corporation

The Six “S”s of SAN

(Building a Better Infrastructure)

Scott Drummond

spd@us.ibm.com

IBM Systems Storage

© 2007 IBM Corporation


Storage Virtualization Layer

Virtual

Disk

Virtual

Disk

Virtual

Disk

Virtual

Disk

HP

EM
C

DS400
0

DS8000

HD
S

The World

Of Storage

IBM Systems Storage

© 2007 IBM Corporation


The Six “S”s of SAN


Servers





Operating Systems, Device Drivers/Dual Path
Device Drivers, HBA’s & Microcode


SAN Fabric Components





Switches, Directors (and Blades), SAN Routers


Storage Virtualization


Flexibility and Efficiency


Storage






Disk Systems, Tape Drives, Tape Libraries


Software





Storage Resource Management, SAN
Exploitation, CMDB input and exploitation


Services






Planning, Testing and Implementation, Education

The Three Things


That Matter

IBM Systems Storage

© 2007 IBM Corporation


The Six “S”s of SAN
-

Servers


Server Planning is crucial to SAN Implementations:


Operating System levels


Native File Systems


Device Drivers


Dual Path Device Drivers


iSCSI Drivers


HBA's and Their Microcode Levels


Understanding Application requirements and priorities


Important for introducing automated Policy Management and
implementing Tiered Storage and SLA’s.


Understanding Data requirements


Important for implementing virtualization


Storage and File
System!


IBM Systems Storage

© 2007 IBM Corporation


The Six “S”s of SAN


SAN Fabric Devices


8 Gb/s Fibre Channel coming in 2008 (FCP and FICON
protocols)


Brocade announced 8 Gb/s FCP on October 15, 2007


2007
-

10Gb/s for Trunking (ISL) between SANs


Higher Port Count Density in Directors and Core Switches


Blades/Modules to maintain investments in SAN Directors


SAN Routing is becoming important in managing large multi
-
site SANs


IBM Systems Storage

© 2007 IBM Corporation


The Six “S”s of SAN


Storage Virtualization


In
-

band


Disk Level Virtualization


Out
-

of


Band


File System Virtualization


Tape Virtualization


Implemented via Library Modules





Storage Virtualization

IBM Systems Storage

© 2007 IBM Corporation


The Six “S”s of SAN


Storage Virtualization

Customer Challenge

Virtualization Benefits

Application Availability


Reconfiguration


Migrations

Non
-
Disruptive Operations


Physical storage changes are not visible

to application servers

Complexity & Personnel Productivity


Most customer have storage from

multiple vendors


Logical to Physical Mapping


Allows use of heterogeneous storage to be

used regardless of storage provider


Management of storage can be performed

in a common way from a single point of

management

Storage Utilization


Capacity not efficiently used


Difficult to manage and monitor utilization

Virtual Storage Pools


Capacity can be allocated from multiple storage

arrays


Management of capacity utilization can be done

from a central point


Pools of different capabilities can be created

IBM Systems Storage

© 2007 IBM Corporation


The Six “S”s of SAN
-

Storage


Most Enterprise Storage at 4 Gb/s attachment in 2007


Moving to larger/faster disks
-

300 GB 10k! 450GB or
600GB soon! Petabyte Systems on the near horizon.
SATA disk are available.


HDD price/GB continues to erode but at a lower rate.


Matches areal density erosion rate


More advanced function software


Replication
(Flash, Two Site (Synchronous or Asynchronous),
Three Site) and LPAR


Storage is using SNIA Storage Management Initiative
Specification (SMI
-
S)


Low end storage is shipping SATA with SAS
interfaces (3Gb/s


6Gb/s in 2008)


Large Scale low cost memory solutions in research
labs


Recent news


nanowire based memory (10
-
100x
times flash memory)


Long Term


AFM Storage


IBM Systems Storage

© 2007 IBM Corporation


The Six “S”s of SAN
-

Software


CMDB


IBM, EMC, HP & Others


Framework Managers


Tivoli, HP, CA, BMC


Storage Resource Managers
(SRM)


SAN Fabric Managers


Storage Element Managers


SAN Exploitation


LAN
-
Free Backup


Hardware Assisted Backup

IBM Systems Storage

© 2007 IBM Corporation


The Six “S”s of SAN
-

Services


Planning for SANs is crucial


SAN skills are more available now, but still not plentiful


Implementing SANs can be
very political

-

having a third
party to arbitrate between groups can be effective


A Sampling of Industry Services Offerings:


Storage Assessment


SAN Planning and Implementation


Virtualization Planning and Implementation


Fibre Transport Services


IBM Systems Storage

© 2007 IBM Corporation


Summary


Growth of storage continues unbounded, driven by
unstructured data



Data protection and storage management require significant
focus




Long
-
term digital preservation is a significant challenge


Media Migrating & Audit


Interpretation of the data


What application processes it at the end



Innovation in storage technologies continues


Memory Storage, Denser Disk and Tape, AFM Storage

IBM Systems Storage

© 2007 IBM Corporation


Thank you for your
attention !

IBM Systems Storage

© 2007 IBM Corporation


Abstract

The Six "S"s of SAN"
-

Servers, SAN Fabric, Storage Virtualization, Storage, Software, Services


A good storage infrastructure is crucial to maximizing the informational value of a
company’s data. It needs to provide reliable access to applications’ data, good I/O
performance and have an appropriate cost in relation to the availability and performance
requirements. Other attributes of flexibility, scalability and advanced functions such as
instant copy and/or remote copy are also highly desirable.


Storage infrastructure architectures can range from Direct Attached Storage (DAS) to
Network Attached Storage (NAS appliances or also know as Network File Servers) to
Storage Area Networks (SANs) and finally to SANs augmented by various storage
virtualization solutions. The combination of the architecture of customer choice with
appropriate storage management practices, policies and procedures is key to improving
customer’s data availability, data access performance and controlling costs.


Smaller companies can be quite successful with DAS or DAS + NAS solutions, although
they have certain cost or flexibility inefficiencies if the company’s data grows
significantly. Larger companies can benefit from the availability and scalability benefits of
SAN or SANs + storage virtualization. NAS Gateways combined with SANs and/or SAN +
storage virtualization is another good solution.


In this presentation we'll focus on each of the six elements of a SAN with an eye towards
the latest industry trends in each.



IBM Systems Storage

© 2007 IBM Corporation


Trademarks

Trademarks


The following are trademarks of the International Business Machines Corporation in the United States and/or other countries.

Fo
r a complete list of IBM Trademarks, see
www.ibm.com/legal/copytrade.shtml: AS/400, DBE, e
-
business logo, ESCO, eServer, FICON, FlashCopy, IBM, IBM Logo, iSeries, MVS,
OS/390, pSeries, RS/6000, S/30, VM/ESA,
VSE/ESA, Websphere, xSeries, z/OS, zSeries, z/VM


The following are trademarks or registered trademarks of other companies


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

Java and all Java
-
related trademarks and logos are trademarks of Sun Microsystems, Inc., in the United States and other countrie
s

LINUX is a registered trademark of Linux Torvalds

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

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.

Intel is a registered trademark of Intel Corporation

* 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 multiprogramming in the user's job str
eam
, the I/O configuration, the storage configuration, and the
workload processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equival
ent

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 customer configuration
s a
nd 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 or services available in you
r a
rea.


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 s
hould 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 i
n y
our geography.


References in this document to IBM products or services do not imply that IBM intends to make them available in every country
.


Any proposed use of claims in this presentation outside of the United States must be reviewed by local IBM country counsel pr
ior

to such use.


The information could include technical inaccuracies or typographical errors. Changes are periodically made to the informati
on
herein; these changes will be incorporated in new editions of
the publication. IBM may make improvements and/or changes in the product(s) and/or the program(s) described in this publicat
ion

at any time without notice.


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IBM Systems Storage

© 2007 IBM Corporation


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