iSCSIMark GonnellyTechnical Trainer ATTmgonnelly@novell.com

Jeff McMurdieTechnical Trainer CNI/ATTjmcmurdie@novell.com

Mitchell SmithSr. Technical Trainer CNI/ATTmasmith@novell.com

Shawn HoopesTechnical Trainer ATTshoopes@novell.com

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Opening the door to Web services

Novell exteNd™

Securely getting the right information to the right people

Novell Nsure™

The best foundation for your mixed environment

Novell Nterprise™

The experience to solve your business problems

Novell Ngage

Novell Ngage services combine

the real-world experience and

knowledge of business

management consultants around

the world to make sure every

Novell solution you implement

is based on best practices,

customized to meet your needs,

and capable of delivering the

highest possible return on

investment.

Novell one Net vision

SM

Agenda

Storage Trends• DAS (Direct Attached Storage)• NAS (Network Attached Storage)• SAN (Storage Area Network)

1

Benefits of NetWare® as a storage platform2

iSCSI the solution for testing and training Clustering

3

Configuring iSCSI storage – Demo4

Installing Novell Cluster Services™ (NCS) – Demo5

Creating and migrating Cluster resources - Demo 6

Novell ATT courses7

• Companies are detaching storage from servers to manage escalating storage needs

• This means deploying NAS and SAN technologies

• Storage area networks and network attached storage require 75% less personnel to maintain than traditional direct attached storage

Storage Today—DAS, NAS, and SAN

Direct Attached Storage (DAS)

Windows NT/2K

Linux/UnixNetware

Network Attached Storage (NAS)

Windows NT/2K

Linux/UnixNetware

Storage Area Network (SAN)

Netware

Windows NT/2K

Linux/Unix

Storage

FC Switch

NAS

The Problem with DAS

Direct Attached Storage (DAS)

Data is bound to the server hosting the disk

Expanding the storage may mean purchasing and managing another server

Storage is often provisioned badly

In heterogeneous environments, management is complicated

Windows NT/2K Linux/UnixNetware

NAS Issues

Network Attached Storage (NAS)

Each appliance represents a larger island of storage

Data is bound to the NAS device hosting the disk and cannot be accessed if the system hosting the drive fails

Storage is labor-intensive and thus expensive

Windows NT/2K Linux/UnixNetware

NAS

Benefits of SANs

Storage Area Network (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 separate mirrored storage)

Windows NT/2K

Linux/Unix

Netware SAN Switch

Storage Area Networks (SANs)

• Result of applying core networking principles to storage

• Retains the flexible topologies, scalability and dynamic behavior of networks

• Servers are attached to 2 distinct networks• Back-end – servers connect to storage devices

• Servers become clients of storage devices• Front-end – Unchanged LAN

• Clients see the SAN as DAS (Direct Attached Storage)

Key Benefits of NetWare 6 as a Storage Platform

Totally scalable, high-performing, feature-rich, distributed SAN file system: Novell Storage Services™ (NSS)

• Up to 8 TB volumes (no limit to the number of volumes)

• Journaling• Compression• Open file backup support• Mirroring and striping• Disk quotas• Volume pooling and junctions• High integrity volumes-flush cache on close• Shared disk support for better SAN integration• XML-based management infrastructure

• Novell clients (NCP)

• Windows clients (CIFS)

• Unix clients (NFS)

• Macintosh clients (AFP)

• Web and Internet clients (HTTP, HTTPS, FTP, and WebDAV)

Key Benefits of NetWare 6 as a Storage Platform (cont.)

Native support for all major client access methods

• Up to 32 servers in an all-active cluster• Fan-out failover for load balancing on failover• Transparent failover• Enhanced cluster resource management• Integrated with eDirectory™• Intelligent cluster volume operations• Built in cluster volume manager allows for

dynamic volume changes in the SAN without rebooting any servers

Key Benefits of NetWare 6 as a Storage Platform (cont.)

Highly-scalable, load-balancing, directory-enabled clustering environment

• General purpose backup for all SAN data

• No more zoning off portions of the SAN for specific operating systems

• No need to learn and deploy multiple clustering solutions

• No more mis-provisioned disks on servers or NAS devices

Novell Cluster Services

Windows NT/2K App Server

Linux/Unix App Servers

Windows, Mac, Unix, and Novell

clients

NetWare 6 Storage Area Network (SAN)

Netware6 Cluster

So, get a SAN!

NTS problem

We can’t teach a clustering course on enterprise equipment because the hardware is too expensive and too heavy.

iSCSI to the rescue

• Any computer that meets NW6 hardware requirements can become a SAN storage device

• Use existing servers as your shared storage. iSCSI can run as an additional service.

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

• iSCSI is slower but even cheaper on 100 Mb.

Before and After

BEFORE950 LB server rack

for 12 students

AFTER4 laptops and a hub for 2 or 3 students

iSCSI Software Stack

• Target (storage server) appears as local storage device to Initiator(s)

• Initiator(s) are storage clients that connect to the target server

Target Initiators

iSCSI Software Stack

iSCSI Target:

iscsinit.nlm Initiator controlleriscsiham.ham NetWare HAM driverion.ncf, Batch file to load initiator

ioff.ncf Batch file to unload initiator

iSCSI Initiator:

iscsitar.nlm Target controllerTon.ncf Batch file to load target

Toff,ncf Batch file to unload target

iscsilib.nlm iSCSI common functionsiscsinrm.nlm Novell Remote Manager pluginioctl.nlminterface functionsIscsixml.nlm XML interface modulered_flag.gif Novell Remote Manager

icons green_flag.gif yellow_flag.gif

iSCSI common files:

iSCSI Target

Create a single iSCSI partition on target

machine.

Load iscsi target

(ton.ncf) on the target machine.

It will display the GUID of the iSCSI partition.

iSCSI initiator(s)

• Load SCSIHD.CDM if not already loaded.

• Run ION.NCF (loads files)

• Use NoRM or command line to connect to Target (ip address)

• In NoRM, select Storage Services -> iSCSI Services. Click on the New Session button and enter the ip address of your target.

• Or at the command line, enter: iscsinit connect <ip address>

• View the available disk:• In NoRM: Manage Server->Volumes->Disk Partitions• Command line: list devices• ConsoleOne: Properties of server->media tab->devices

• Initialize the iscsi disk, make it sharable & create an NSS partition using ConsoleOne® or NoRM.

• You don’t have to use all the space available.

• Create a Pool on your newly created partition.

• Create a volume(s) in your pool.

• If users will need file access Cluster Enable the Volume

• Chose access protocols - NCP, CIFS, AFP

• Mount the volume

iSCSI initiator(s) – (Continued)

NoRM interface

1 2 3

4 5 6

Demonstration

Loading Initiators

Connect to Target

Command line NoRM

Loading Target

Setting up iSCSI partition

Confirming all Initiators see

the target device

List Devices

ConsoleOne

Create Cluster Enabled Volume

Install Novell Cluster

Services

Create a Cluster

Resource

ATT Courses

Novell Advanced Technical Training classeswww.novell.com/registernow/

Troubleshooting

• Advanced DirXML®

• Advanced NetWare 6

Services and

Troubleshooting

• GroupWise® 6.5

• ZENworks® for Desktops 4

(4 Day Course)

Deployment

• NetWare 6.5 First Class

• Novell Cluster Services

• Advanced eDirectory 8.7

• iChain®

• Novell Nsure Technical

Workshop

• ZENworks for Servers

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