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N E T W O R K S Y S T E M S G R O U P

NAS Basics

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Agenda

Networking 101Overview of basic networking concepts

Introduction to NASWhat is NASSAN vs. NAS

NAS applications

Overview of MNSG Products

MaxAttach NAS 3000MaxAttach NAS 4000

Setting up a MaxAttachOverview of software

3-step installationDemonstration

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Networking 101

Introduction to Ethernet networkingbasics; Network types, components,

configurationsServers

SwitchesPCs

Routers

HubsCat-5UTP

NICs

Protoc

ols

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Network Types

LAN Local Area Network Connects users in the same building

MAN Metropolitan Area Network Connects sites in and around a city Basically a WAN within a city

WAN Wide Area Network Connects sites around the country

and world Typically is a low speed link (due to

cost)

Building Backbone Connects LANs within a building May use optical fibre to connect

buildings (high speed links) Campus Backbone

Connects building LANs May use optical fibre to connect

buildings (high speed links)

Enterprise Network Connects many (or all) of the

networks on this page

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Network Components

Client (user) system/workstation (including localOS and NOS (Network Operating System)

Cabling (typically Cat-5 UTP for data transferrates up to 100Mbps)

Network Interface Card (NIC) and associateddrivers. Each has a unique MAC address

Servers (including networking software)for applications, fileserving, printing, etc.

Connectivity devices (switches,hubs, routers, patch panels)

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What is a NOS?

Network Operating SystemSoftware that makes LAN and WAN communications easyAllows users to interface to the LAN transparently

Provides services such as: file, print, email, database, security, etc.

The NOS determines if data is to be used locally or redirected(through the NIC) to the network (and likewise, if resources arelocal or on the network)

Provides client software allowing access to servers on the network NOS examples

UNIX

Novell Netware

Windows (NT)MacOS

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LAN Types

Peer-to-peer network Distributed management

All workstations share theirresources with other workstations

Typically small (each workstation

has performance impacts due toservicing each others requests over

the network)

Client/Server Network Centralized management Characteristics:

Servers are typicallyconfigured for specific

needs Servers service requests

from clients; clients do notservice each other

HUB

Client/servers

HUB

Print server

Clients

File server

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File Service

File services are provided bythe NOSFile services allow users to

access files on remote(networked) systems as if theywere local

Fileservers:Contain data files & permissions

for users and groups;Provides shared storage for

usersProvides file mapping schemes

to provide virtual files; file aremade to look like the usersnative file system

Provides file security

File Request

Copy of File Provided

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Switch Traffic Segmented

CollisionDom

ainA

CollisionDomainB

A Typical Network

RouterWAN

To other sites &

networks

Routers connect networks, notdevices they provide logicalsegmentation, connection of distantsites, and can improve management,security and performance in largenetworks. Provides logical

segmentation

Hubs connect a number of devicesthey areessentially repeaters (all devices connected to a hub

see all of the traffic). Provides physical connectivity

Switches also connect a number ofdevicesbut they connect only two

devices in a transaction, and isolate traffic

(allowing better use of networkbandwidth). Provides physicalsegmentation

HUB

(Sales Dept.)

HUB

(Engr.Dept.)

LANWAN

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Which Cables to Use

Two device types DTE Data Terminal Equipment

PCs, Terminals, End user

devices DCE Data Communications

Equipment

Hubs, Switches, Modems

Straight-through cables are used whenconnecting DCE to DTE devices Use crossover cables for connecting

like devices DTE-DTE or DCE-DCE

The exception: Use straight-through cables when

connecting like devices through an

uplink port

Straight-Through Cable

HUB

HUB

Crossover Cable

Straight-Through Cable

Crossover Cable

SwitchCrossover Cable Straight-Through Cable

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Building a Network

10Mbps Ethernet 5-4-3 Rule Reduces collisions In a collision domain you can

have 5 Ethernet segments with

4 hubs between 2 stations Only 3 of these segments

can have users

Switches or routers restart therule by creating a new collision

domain

100Mbps Ethernet 2-1 Rule Hubs must be connected to an

internetworking device (switches

or routers)

(Sales Dept.)

HUB

HUB HUB

HUB HUB

Switch

HUB

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Stacked Protocols

Ethernet

TCP/IP

SMB, CIFS, NFS

A protocol is a set of rules that defines how computers (orother devices) communicate and exchange information.

These arecommon tomost allnetworkingdevices

These protocols are the focus of NAS SMB/CIFS: Windows NFS: Unix/Linux IPX/SPX: Novell AppleShare: Apple

Networking devices (NAS in particular) all use these protocols to do their jobs

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Ethernet Overview

Multiple data transfer speeds 10Mbps, 100Mbps (Fast

Ethernet), 1000Mbps (Gigabit

Ethernet) Throughput is significantly lower

than these speeds

10BaseT is the most commoncabling option

UTP (unshielded twisted pair)category 3 or better (typically cat 5)

Hubs and NICs connect devices RJ-45 connectors are used on

cables and devices

If a cable is damaged, only that linkis affected

Typically uses wall jacks and patchpanels to simplify network changes

Ethernet II frames are the most

common format for packaging data

Ethernet can also be referred to asthe CSMA/CD protocol Carrier Sense Multiple Access /

Collision Detect There is no arbitration by a device

to gain access to the bus before

transmitting data All devices attempt to transmit;

if a collision is detected, alldevices back off for a random

delay time and attempt to

retransmit the frame Using switches in a network

isolates traffic, and as such,reduces the number of collisions

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TCP/IP Overview

Transaction Control Protocol /Internet Protocol Provides a common transport that

allows different types of devices to

communicate over a network toshare files and applications

Provides networking services

Dominant communicationsprotocol today

TCP/IP has several layers Network Access: Provides physical

delivery of packets

Internet: Provides addressing and

routing information Subnetting occurs here

A subnet is a network that is aportion of a larger network,connected by routers

Host-to-Host :Provides (2) servicesfor the reliability and session aspectsof transmission

TCP: reliable data transfers with

assurance that data was

delivered correctly UDP: unreliable data transfers

with little/no means to insure

data delivery Process: Application support (telnet,

smtp, http, ftp, etc.)

Oth I t t

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Other ImportantNetworking Stuff

DHCP Server A Dynamic Host Configuration Protocol A server that can assign IP addresses to client PCs or servers on a network

DHCP Client A client that can be assigned an IP address by a DHCP server DNS

A Domain Name Server Resolves host names to their equivalent IP addresses so that IP traffic can be

transported to the correct destination WINS

Windows Internet Name Service

Resolves computer names to an IP address

Workgroup A group of computers on a network that accesses the same resources

Domain Typically an intranet, which may contain many workgroups

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Introduction toNetworked Storage

What is it, how does it fit intoyour network and what can you

do with it?

NAS

SAN

Ethernet SMB/CIFsNFS

FC

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What is NAS?

As prospective customers become aware of

HDD-NAS products and their benefits, we

believe demand will explode

SolomonSmithBarney NAS report, Feb, 2000

Ethernet

The fastest and most affordablepath to more storage.

Directly accessible by PCs,laptops, servers anything onthe network.

Accessible in your office,or remotely anywhere onthe network.

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What is NAS?

Network Attached Storage A specialized server that provides one dominant network service in particular:

file serving Because it is not a general purpose server, it is often called an

appliance Attaches to the network like clients and servers

Unlike RAID arrays that attach to a server

It contains software optimized for fileserving No per-seat software licenses (like Windows NT, for example)

Many NAS devices are based on Linux or Unix derivatives Operating System and filesystem agnostic

Data can be stored, retrieved or shared from heterogeneous systems

(Unix and NT machines can both access the device and the same file) Is simple to setup and administer

Because its a specialized device, its simpler by design and is morereliable

Administration occurs through a web browser.an interface everyone is

familiar with, coupled with GUIs supplied by the NAS device

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Appliance Market

$0

$1,000

$2,000

$3,000

$4,000

$5,000

$6,000

$7,000

$8,000

$9,000

1999 2000 2001 2002 2003

Reven

ue($M)

NAS

Other

E-mail Server

Internet CachingWeb Server

Source: IDC, 2000

NAS marketforecasted to beover $5 Billionin 2003!

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What Can You Do With NAS?

NAS is essentially a server that does one thing: serve files So, anything you do with a fileserver, you can do with NAS

Some NAS applications.

Share data between different client types Windows, UNIX, MacOS, Novell, Linux can all use the same storage

solution and can share the same files Backup of client systems

Using applications like Maxtors ReflectIt, laptops and desktop data is

backed-up unattended Server replication

Instead of sending data to tape, applications exist to move data toanother server.like a MaxAttach

Storage for webservers

Webservers typically offer high I/Os, but small storageMaxAttach ona subnet behind the webserver delivers content when its needed

Local storage for data-intensive workgroups

Isolating traffic for groups that have huge files improves overall

network performance

Heterogeneous File

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Heterogeneous FileSupport

SWITCHHUB

RS/6000

HP-9000

Sun Ultra

HUB

Windows NT

Windows 98

Windows 2000

HUB HUB

???

Netware Clients

AppleDEC Alpha

Novell Netware

UNIX NFS Windows SMB

Apple

Share

FTP

HTTP

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SAN vs. NAS40GB 40GB

FibreChann

elSwitch

Switch NAS

NAS Characteristics

NAS defines a device Transfers files Data is typically accessed by clients

Filesystem resides in the NAS device Connected with Ethernet Uses network protocols 10/100Mbps data transfers today; 1Gbps

later this year

SAN Characteristics

SANs describe a topology Transfers blocks Data is typically accessed by servers

Filesystem resides in the server Connected with FC (or SCSI) Uses SCSI protocols 1Gbps data transfers (with FC)

SANs and NAS can (and do) co-exist; they solve different storage problems

Deploying Storage Where

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p y g gYou Need It With NAS

IT department can administer andmonitor NAS devices remotely

Large files transferred from the localNAS to engineering workstations do not

impact users in other segments

Small files and emails in the sales department aredelivered quickly from the local NAS

HUB

Sales Dept.

SwitchTraffic Segmented

CollisionDomainA

CollisionDomain

B

HUB

CAD/CAM group

Centrally located NAS used tobackup servers in the IT department

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Maxtor NetworkSystems Group

Review of Products and Features

First Some

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First SomeImportant Terms

UUnit of measurement relating to rackmount equipment1U = 1.75

RAIDRedundant Array of Independent Disks

Mechanism (software or hardware) that places data on a set ofdisks to provide higher availability of that data

Several levels are defined that provide various protection andperformance levels

MirroringAnother name for RAID level 1

GUIGraphical User Interface. A set of menus that simplify userinteraction with an application or device

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Product Family

MaxAttach NAS 3000

- Network attached storagefor small office, remoteoffice, and smallworkgroups

- 40, 80, 120 GB

MaxAttach NAS 4000

- Network attached storagefor larger workgroups,ISP/ASPs

- 80, 120, 160, 240 GB

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Product Overview

MaxAttach NAS 3000

Desk Top Package

10/100 Mbs Ethernet

1 or 2 Drives

External power supply

RAID1 and Disk Spanning support

System capacities of 40/80/120GB

P d O i

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Product Overview

MaxAttach NAS 4000

1U, 19 Rack Mount Package (1.75 height)

Intel Pentium 266 MHZ 64/128MB SDRAM

2 or 4 Maxtor Drives

Dual internal power supplies

Supports mirrored operation

Two drives supported by each power supply (master/slave pair)

Both supplies power all other system components (system

board/fans)

RAID1 and Disk Spanning Support

System capacities of 80/120/160/240 GB

Disk Configurations

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Disk Configurations

40GB 40GB 40GB 40GB

Spanning

Client sees 1-160GB volume

40GB40GB 40GB 40GB

RAID 5

Client sees 1-120GB volume

40GB 40GB 40GB 40GB

JBOD Just a Bunch Of Disks

Client sees 4-40GB volumes

40GB40GB 40GB 40GB

Mirror Over Span

Then mirrored: Clientsees 1-80GB volume

2 disks spanned...

40GB40GB 40GB 40GB

Span Over Mirror

Then spanned: Clientsees 1-80GB volume

2 disks mirrored...

40GB40GB 40GB 40GB

Mirrored JBOD

Client sees 2-40GBvolumes

2 disks mirrored...

NOTES: Mirroring is also referred to as RAID 1. Current MaxAttach products do not support RAID-5. Two drive

units (like the MaxAttach 3000) support JBOD, Spanning and Mirroring only.

NAS 4000 F t

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All MaxAttach NAS 4000 appliances feature dual powersupplies for enhanced system availability. If eithersupply should fail, mirrored data remains available.

NAS 4000 Features

Dual

Powe

rSup

plie

s!

RAID-1forM

irroredD

ata!

R k d St k

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Rack and Stack

High capacity in a small footprint for ISPs, ASPs, CAD/CAMcompanies, architectural firms, graphics design houses,imaging, multimedia, publishing and more.

7 equals 1 Terabyte (240GB version)13 equals 1 Terabyte (160GB version)

No Quibble Service and

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No Quibble Service andSupport

Extension of Maxtors industry leading service program for all MaxAttach

appliances

Advance replacement unit ships within one business day

No cost service

Next day shipment guarantee

AskMax online web service

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Software enhancements provided through internal development andpartnerships with industry leaders

Integrated drive, system and software designed to optimize:

Performance

Usability

Manageability

Reliability

Availability

Scalability

Product family expands the customer base to address the growing storageneeds of larger workgroups, Internet service providers and enterprisemarket segments

MaxAttach Strategy

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MaxAttachSpecifics

Setting up a MaxAttach,

Key concepts and features

MaxAttach Installation

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MaxAttach Installation

1. Plug it in. Connect to network via wall socket or hub.

2.Install discovery wizard on any client PC. Select your

new device from the neighborhood.

3.Set the time and date. Assign device a name andpassword.

MaxAttach: A Complete

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Solution

MaxNeighborhood: Discoveryand setup application wizard

that easily finds the MaxAttachon your network

Browser-based interface to

(remotely) configure theMaxAttach

Reflect-It client software toautomate backup of laptops anddesktop systems

Administrator

MaxAttach

Clients

Ethernet

MaxAttach NAS Specifics

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MaxAttach NAS Specifics

MaxAttach currently only supports two platforms,UNIX/Linux and WindowsSupport for additional platforms is being developed

While the MaxAttach does support UNIX/Linux clients, it currentlydoes not allow filesharing between UNIX/Linux and Windows

clients Both clients may access the unit and read/write files, just not

the same file Full filesharing is being developed

Current MaxAttach devices must be administered from a Windows

client Administration from any client type is being developed

Ad i i t ti

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Administration

MaxNeighborhood Setup & Discovery Wizard

Simple initial discovery and setup

Single GUI Page for Managing Shares

Create, rename, delete shares

Single GUI Page for Storage Management Options

Configure or change between JBOD, Spanning or Mirroring with one mouse click

E-Mail Notification

E-mail sent to administrator in the event of system issue

Manual testing of e-mail alert for added protection

Administration Close-up

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Administration Close-up

MaxNeighborhood Setup &Discovery Wizard

CD included with each

MaxAttach unit

Discovers new & existingMaxAttach units on thenetwork

Provides initial configuration of

* Date/Time

* Administrator Password

*

Network Name &Workgroup

Administration GUI Page

Share Folders

Manage Users

Manage Network

Manage Disk

Configuration

ToolsHelp

Log Out


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Share Folders

Sharing

User Access

Manage Users

Users

Groups

Group Membership

User Validation

Manage Network Network

Identification

WINS

DHCP Server

Manage Disk

Configuration

Reformat

Configuration

Date/Time

Administrator Password

Network Name & Workgroup

Tools Date/Time

Email

Update

Shutdown

Backup

Restore

SNMP

Help

Log Out

A Few Words About Shares

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A Few Words About Shares

What is a Share?

A network share is a reference to a folder (or directory) on a server hard drive

Why do you need Shares? Shares allow users to access specific information on the server

What do Shares do for you?

Security

Restriction of user access to specific folders containing only required material

creates drive and folder level security

File / Application Access

Allows for specific file or application access without having to navigate the

directory hierarchy

User Interaction

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User Interaction

NAS units appear as servers on theNetwork Neighborhood.

User Interaction

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User Interaction

File folders can be either public or password protected.

Client Backup With Reflect-It

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Client backup

software permits

clients to be backedup on a scheduled

basis.

NAS devices make aconvenient backup

destination

- Easy to install- Simple to maintain

nas basics

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