richard d. jones product manager, storage services [email protected] robert wipfel distinguished...

Richard D. JonesProduct Manager, Storage [email protected]

Robert WipfelDistinguished [email protected]

Novell® iSCSI Implementing Affordable SAN Solutions

© Novell Inc, Confidential & Proprietary

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Agenda

Storage Trends – How to manage the growth?

What is iSCSI?

When to use iSCSI?

Novell iSCSI Solutions

Novell iSCSI disk server

iSCSI and LDAP

Question and answer


The Storage Trends

Direct Attached Storage moving to Storage Area Networks (SAN)

• Server Consolidation• Storage Consolidation• Storage Flexibility and Management• LAN Free backup and archive• Modern data protection (change from traditional tape

backup to snap-shot, archive, geographically separated mirrored storage)

Increased use of Clustering for Business Continuance solutions

• In light of 911, Disaster Avoidance is a key focus• Clustering requires a SAN


NetWare® Deployments

70% of NetWare new and upgrade sales are deployed on New Hardware

Data growth Doubling every 12 months

Digital Media is the major driving factor


NetWare Deployments

0

50,000

100,000

150,000

200,000

250,000

300,000

350,000

400,000

450,000

500,000

2000 2001 2002 2003 2004 2005Year

New

TB

on N

ew

NetW

are

Serv

ers


Managing the Data Growth: a SAN

New techniques are required in order to manage data in the future

• Large Data centers have figured out the value of SANs

SANs help manage data• Consolidate Storage• Easy to provision and re-provision storage• Better backup/archive

SANs for Business Continuance• Clustering• Mirrored Geographically separate Data Centers


The SAN Problem: Costly

SAN Deployment using Fibre Channel Solutions

Storage Frames (FC or SCSI)~$150,000 to $1,000,000 ea

Fibre Channel Switch(s)~$25,000 ea.

Servers.HBA ~$700 eaGBIC ~$800 ea

HBA=Host Bus AdapterGBIC=Gigabit Interface Converter

Specialized Training$??????


The Solution:

An Inexpensive SAN should:

• Leverage commodity Networking Hardware

• Leverage Local Area Networking knowledge and expertise

• Leverage existing networking paradigms

• Allow reuse of existing Direct Attached Storage hardware

• The Answer: iSCSI


Agenda


What is iSCSI?

When to use iSCSI?



iSCSI and LDAP

Question and answer


iSCSI

iSCSI is a new internet standard which defines how industry standard SCSI (Small Computer Systems Interface) storage protocols are run over industry standard TCP/IP.

• V1.0 was ratified on February 11, 2003• This was Internet Draft version 20 of the specification:• “SCSI protocols are request/response application

protocols with a common standardized architecture model and basic command set as well as standardized command sets for different device classes (disks, tapes, media-changers, etc.)”

• “iSCSI is a transport protocol for SCSI that works on top of TCP/IP. The iSCSI protocol aims to be fully compliant with the standardized SCSI architectural model.”


iSCSI SAN Fundamentals

File System

SCSI Protocol

TCP/IP

SCSI Protocol

TCP/IP

Hard DisksServer

Standard Ethernet Adapter

Standard Ethernet Adapter

Standard Ethernet Switch

SCSI “Initiator” SCSI “Target” or Disk Server

A simple iSCSI SANRead Block Request

SCSI Block Request

iSCSI Packet

SCSI Block Request

iSCSI Packet

SCSI Disk Request


The Solution: An inexpensive SAN

iSCSI on Gigabit Ethernet Hardware is a fraction of the cost of a full Fibre Channel SAN solution.

• Estimates are 4 to 10 times less expensive for the same amount of storage

• Not as performant as Fibre Channel

Use existing servers as your shared storage.• DAS servers converted into iSCSI Storage Arrays.

• No new hardware costs incurred.


iSCSI Value

SAN Deployment using iSCSI Solutions

Storage Frames (FC, SCSI, or ATA)~$20,000 to $1,000,000 ea

Gigabit Ethernet Switches~$10,000 ea.

Servers.Gigabit Ethernet

Built-in

Standard LAN infrastructureNo training - $0.00

4 to 10 times less expensive

thanFiber Channel


Agenda


What is iSCSI?

When to use iSCSI?



iSCSI and LDAP

Question and answer


When to use iSCSI?

iSCSI vs Fibre Channel is the wrong question• There are no indications that iSCSI

will replace Fibre Channel• iSCSI will bring SANs to those who would not

implement Fibre Channel• iSCSI will supplement Fibre Channel for 2nd

and 3rd tier data storage• Bridged into Fibre channel

Customers want to use Fibre Channel in the classic data center

• Already deployed • Better Performance• Better support from HW vendors (you get what you

pay for)


When to use iSCSI?

iSCSI may replace Fibre channel as data centers become more dense and iSCSI and ethernet speeds improve to beyond 1GB

• Blades with iSCSIPresently, customer interest and needs from iSCSI are as follows:

• Data migration• DAS to SAN migration• Site to site migration

• Distance replication• Disaster recovery• Geographic data caching

• Serverless backup• Low cost Clusters


Storage Consolidation

GigEthernetSwitch

Gig EthernetSCSI

Easily re-provision

storage between the three servers.

SCSI


Data Migration

GigEthernetSwitch

Gig EthernetSCSI

Migrate data to iSCSI storage

Upgrade or convert data using extra

iSCSI storage


Business Continuity

Low Cost Business Continuance Solution

Mirrored Data

Cluster 1

iSCSI

LAN (Web)

Internet Router

Mirrored Data

Cluster N

iSCSI

LAN (Web)

Internet Router

User workstation

Internet(iSCSI and Web data)

Access all data via the internetusing Novell Technologies


Agenda


What is iSCSI?

When to use iSCSI?



iSCSI and LDAP

Question and answer


Novell iSCSI Solution

Support the NetWare Product Line• NetWare 5.1 and above• Ensure NetWare works with open standards and

standard Storage Solutions• Ensure customer base has leading edge solutions.• Offer direct and indirect SAN benefits to customers

who typically would not purchase expensive Fibre Channel SANs

Prepare the way for ‘Fluid Computing’ models• Key to Blade & Grid Computing


iSCSI for Blade Servers

A key component of Blade and Server Farm Strategy

iSCSI SANSCSI-3TCP/IP

Ethernet

File/Message/Directory/Print/Database Access Protocols

-NW6 File Server Blades

NW6 Disk Server Blades

Directory enabledMulti-protocol

Highly availablescalable NAS/SANNetWare Cluster…


Deployment Plans for iSCSI

Initiator Software stack• Web download for NW5.1 and NW6• Included in NetWare 6.5

Disk Server Software stack• Included in NetWare 6.5 only

Hardware iSCSI adapters• Third Party Certification Program through DeveloperNet

Initial release will support RFC• First Beta in NW6.5 on Draft 08 (no longer moving

forward)• Open Beta in NW6.5 and download for NW5.1 & NW6 on

RFC (Draft 20)• Subsequent releases will add management framework

for iSCSI HW adaptersBeta (extended authorized) for NW5.1 & NW6:

http://beta.novell.com/extended.html pin#: 1117196


Deployment Plans for iSCSI

Initiator Software stack• Web download for NW5.1 and NW6• Included in NetWare 6.5

Target Software stack• Included in NetWare 6.5 only

Hardware iSCSI adapters• Third Party Certification Program through DeveloperNet

Initial release will support RFC• First Beta in NW6.5 on Draft 08 (no longer moving forward)• Open Beta in NW6.5 and download for NW5.1 & NW6 on RFC (Draft

20)• Subsequent releases will add management framework

for iSCSI HW adapters

Beta (extended authorized) for NW5.1 & NW6:• http://beta.novell.com/extended.html

pin#: 1117196


Management interface - Browser

• NetWare Remote Manager• iManager



• Add target Wizard



• Target Added


Management interface - Console


iSCSI HW Initiators for NetWare

HardWare Adapters

• Great for older OS release compatibility

• Great for off loading host CPUs

Plug n Go iSCSI

Management

• Load command line initially

• To be integrated into iSCSI management UI in the future

• Give HW adapters LDAP management capabilities automatically


iSCSI HW Initiators for NetWare

Novell and TOE• Currently no plans to support TOE for just TCP/IP

• NetWare OS Stack efficient enough

• 3 interfaces into NetWare stack

– WinSock 2

– BSD

– Proprietary Novell interface (difficult to emulate in HW)

Novell and SSL offload engines• Novell is very interested in this technology, as SSL

and link layer encryption off loading would make significant differences in Host CPU load


Agenda


What is iSCSI?

When to use iSCSI?



iSCSI and LDAP

Question and answer


Novell iSCSI Disk Server

An inexpensive way to turn your existing direct attached storage (DAS) server hardware into a flexible and manageable SAN solution for your Net Services

NetWare 6.5 only

Integrated with LDAP for Directory based management

• Simplifies “LUN masking” in a familiar rights and access control management system

• Enterprise Wide management

• Security of TCP/IP (IPSec)

• Internet Capable


iSCSI Disk Server

Leveraging existing direct attached storage systems to build a SAN

Gig Ethernet Switch

iSCSI Disk Servers (Targets)

Web & Applications Servers with iSCSI Initiators

Gig EthernetSCSI


Management interface - Console

Console Commands


Agenda


What is iSCSI?

When to use iSCSI?



iSCSI and LDAP

Question and answer


Novell iSCSI + LDAP Strategy

Target and LUN objects represented in Directory

Initiator objects represented in Directory

Directory used to associate Initiators to Targets and LUNs

Target enforces the Directory associations• Only those Initiators specified can attach

• All others; connection rejected


Novell iSCSI + LDAP Strategy

Simple graphical interface for making associations

Enterprise wide enforcement

Only authorized users can make the associations

• Role based SAN administration

• Full eDirectory security enforced

• Many initiators to one target for Clustering


LUN masking with eDir enabled iSCSI


iSCSI Demo – BrainShare® 2002

Disaster Recovery Site

SAN

NetworkBlade RackEthernet

FC,Infiniband, SCSI, iSCSI, Etc.

• 6 Server Cluster

• NetWare 6

• NCS 1.6

• 4 Native File Access Servers with iSCSI initiators

• 2 iSCSI target blades mirrored

• Optional replication and disaster recovery

File iSCSITargets

Blades


Agenda


What is iSCSI?

When to use iSCSI?



iSCSI and LDAP

Question and answer


Unpublished Work of Novell, Inc. All Rights Reserved.This work is an unpublished work and contains confidential, proprietary, and trade secret information of Novell, Inc. Access to this work is restricted to Novell employees who have a need to know to perform tasks within the scope of their assignments. No part of this work may be practiced, performed, copied, distributed, revised, modified, translated, abridged, condensed, expanded, collected, or adapted without the prior written consent of Novell, Inc. Any use or exploitation of this work without authorization could subject the perpetrator to criminal and civil liability.

General DisclaimerThis document is not to be construed as a promise by any participating company to develop, deliver, or market a product. Novell, Inc., makes no representations or warranties with respect to the contents of this document, and specifically disclaims any express or implied warranties of merchantability or fitness for any particular purpose. Further, Novell, Inc., reserves the right to revise this document and to make changes to its content, at any time, without obligation to notify any person or entity of such revisions or changes. All Novell marks referenced in this presentation are trademarks or registered trademarks of Novell, Inc. in the United States and other countries. All third-party trademarks are the property of their respective owners.

richard d. jones product manager, storage services [email protected] robert wipfel distinguished...

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