NETWORK ATTACHED STORAGE

Apresentação em tema: "NETWORK ATTACHED STORAGE"— Transcrição da apresentação:

1

2 NETWORK ATTACHED STORAGE
Inostor is the leader in the Tape and Disk area of the technology market and these technologies are combined in our PerformNASs and InteliNAS & ValuNAS Network Attached Storage Products. The product names are shortening but the features are growing with each generation.

3 InoStor NAS

4 Data Storage Revenue ($billions) 2002-2004
DAS SAN NAS Source: IDC & Bear Stearn report, May 2002

5 Oportunidades de Negócios NAS
Quando o departamento de TI da empresa está procurando comprar um servidor (File Server) para aumentar a capacidade de storage da rede. Quando o departamento de TI os seriços de file services, backup ou necessitam de um LAN free back-ups As janelas de Backup estão diminuindo Restauração rápida é importante Melhor alternativa para o local storage

6 Oportunidades de Negócios NAS
Sem espaço físico nos servidores para mais storage; Usuários precisam compartilhar dados em um ambiente heterogêneo; Mais storage é necessário porém o expertise é baixo; Repositório fixo; Demanda de retenção de dados;

7 Benefícios Inostor Economia de tempo, instalação simples e rápida sem downtime de rede; Gerenciamento integrado para back-up; Baixo TCO (Custo Total de Propriedade): Baixo Custo de Aquisição Administração e Gerenciamento via Web browser Sistema integrado com alta densidade, baixo custo físico no ambiente de TI. Não necessita de licenças adicionais Mais barato se comparado com um servidor de uso genérico.

8 Hierarquia do Storage Corporativo
Necessidade atual de Storage, Poucos concorrentes e Boas Margens Storage Primário $$$$ Alta Performance Storage Secundário $$ Média Performance Storage Terciário $ Baixa Performance

9 Oportunidade do Momento: ILM – Information Life Cycle Management
Necessidade atual de Storage, Poucos concorrentes e Boas Margens Storage Primário $$$$ Alta Performance Storage Secundário $$ Média Performance Storage Terciário $ Baixa Performance

10 Introduzindo o RAIDn

11 Introduzindo uma nova dimensão em Alta disponibilidade
Add the name of the organization you are presenting to as well as your name, title and location

12 História do RAIDn RAID UC Berkley 1985
Várias tentativas no aumento da alta disponibilidade RAID Várias tentativas falharam RAIDn desenvolvido em 1998 pela UVA para Manter a Integridade das Transmissões via Satélite InoStor aplicou o RAIDn na tecnologia de Discos Metodologia provada Patente aplicada em Agosto 1999 Patente Recebida em Abril de 2003 Primeiro produto a incorporar em 2003

13 A InoStor vislumbra o RAIDn como sendo o DolbyTM dos sistemas Storage
RAIDn Até onde vai… Metodologia Embalada e Licenciada para Alta Disponibilidade Controladoras RAID por Harware Switches de Rede Entre Servidores Entre Data Storage Arrays Softwares Suporta também aos atuais níveis RAID Oportunidades de Licenciamento desta tecnologia a parceiros OEM A InoStor vislumbra o RAIDn como sendo o DolbyTM dos sistemas Storage

14 RAIDn Secured Tecnologia Patenteada
Elimina a necessidade do hot spare do nível RAID 5 Garantia contra falhas de 0, 1, 2 & 3 Melhor Disponibilidade, Baixo Custo, Alta Capacidade Elimina a Janela de Vulnerabilidade e recontrução de Hot Spare Decisão simplificada de qual nível RAID utilizar

15 Comparação com o RAID 5 RAID 5 com Hot Spare
RAID 5 é o mais utilizado atualmente A maioria dos RAID 5 utiliza o Hot Spare RAID 5 com Hot Spare Data Data Data Data Data Data Data Parity Hot Spare InteliNAS 9000 RAIDn com 2 discos de proteção Pela mesma capacidade 02 discos de proteção a falhas! Elimina a janela de vulnerabilidade

16 Comparação com o RAID 1+0 InteliNAS Concorrentes Data Parity
= Capacidade Utilizável = Discos de redundância = Total de discos RAIDn permite um economia de 35% (discos)

17 Resumo Nível: RAID 0+1 ------------------------
O RAID-10, é extremamente rápido, metade dos Discos estão disponíveis para Disco/ dobro do Preço, Seguro. Usado para dados primários e críticos Caso um Disco falhe ”OK”, O segundo ocasiona a perda dos dados! Os dados permanecem Salvos Todos os Dados Foram Perdidos 20 = Total de Discos 10 = Capacidade Usável *2 = Redundância de Discos 20 = Performance Leitura 10 = Performance Escrita Data Grupo #1 Dados Críticos Grupo #2 Espelho (Cópia)

18 Os dados permanecem Salvos
Nível: RAID 5+1 RAID 5+1 oferece 4 discos de capacidade porém com necessidade total de 10 discos: Dados Paridade Grupo #1 Dados Críticos Grupo #2 Espelho (Cópia) Striping Paridade Os dados permanecem Salvos Todos os Dados Foram Perdidos

19 Os dados permanecem Salvos
Exemplo - RAIDn RAIDn proporciona 7 Discos de Capacidade e 03 Discos de Redundância 3, utilizando os mesmos 10 discos do padrão Raid 5+1 Paridade Dados Striping Os dados permanecem Salvos Todos os Dados Foram Perdidos Comparado com o Exemplo do nível Raid 5+1, Raidn proporciona 75% a mais de capacidade além de permitir que 03 Discos Falhem simultaneamente

20 InoStor Replication iRep
Incremental replication transfers only data changes since last synchronization Bandwidth Management provides configurable network resource limits Multi-Streaming enables sending larger amounts of data simultaneously by using multiple TCP connections Retry and Checkpoints handles the connection automatically and restarts again where the connection left off

21 InoStor Replication (iRep)
Every company with multiple locations or systems moves data. Outdated methods lead to: High Costs, Low Efficiency manual processes, physical CD or tape shipments redundant effort in multiple locations Low Reliability No data integrity checks, dependence on people Poor network performance data not local, bandwidth taken by inefficient data movement Security Risks unsecured methods (FTP )

22 Problems Solved File Synchronization between two systems
Data consolidation from many systems to one (Jan’04) Data distribution from one system to many (Jan’04)

23 O Desafio… Growing Need For Networked Storage
Aumento o uso os dados – Novos aplicativos necessitam cada vez mais de storage Aumento de informações on-line As capacidades Online continuam a crescer a taxas de 100% ao ano Aumento do custo do gerenciamento de Storage O custo de gerenciamento contra o custo do hardware está em 5:1 Aumento do impacto de performance Serviços de aplicação e file services rodando na mesma plataforma In today’s corporate environment, there are many things driving the necessity for networked storage. There are ever increasing uses for existing data, such as data mining, data warehousing and e-commerce. [click next] There is ever increasing need to have large amounts of on-line information available. Current projections show online data capacities to be growing 100% annually. [click next] Storage management is becoming is also increasing. Management costs currently outweigh hardware purchase price by a factor of 5:1. [click next] With all of this increased activity the result is an impact on performance. The performance of application servers are being severely impacted when also being used to provide file services. [click next]

24 Direct Attach Storage (DAS)
Dificuldade para gerenciar Requer alto nível de conhecimento em gerenciar e manter Client LAN Application/File Server Disk Array Dificuldade em Escalar Client Application/File Server Tape Library Alto custo de TCO The topology shown here demonstrates a fairly typical Direct Attached Storage Configuration. When there is a need for more storage, an administrator simply adds more disks or another external storage subsystem to an existing file server. There are some inherited problems with this older method of storage being used to deliver networked file services. [click next] It’s difficult to manage direct attached storage configurations and generally requires a high degree of skill to manage and maintain. [click next] It’s also very difficult to scale. Adding disk capacity can take hours and could also effect end user file service availability. [click next] When file services are being provided on a server that is also being used as an application server there is resource contention between compute tasks and I/O tasks. [click next] All of these factors lead to a very high total cost of ownership. [click next] Client Application/File Server Optical Storage

25 Benefícios da Topologia NAS
O NAS é conectado diretamente na rede (LAN) e prporciona recursos de storage para todos os usuários da rede NAS File Server Client LAN O NAS foi desenvolvido para ser fácil de instalar, robusto ideal para ambientes departamentais e enterprise. Applications Server Client Fácil de Instalar Disk Array Baixo requerimento técnico para instalar e manter (ideal para filiais). Client A NAS server attaches to an existing LAN and provides storage resource to all users on the network. NAS servers are designed to provide hassle-free, reliable storage expansion for small offices, workgroups, and departmental class networks. The inherrited attributes of NAS servers are a better value to the customers than the Direct Attached Storage model. [click next] NAS servers are easy to install and only take minutes to setup and configure for immediate use. [click next] Very low to no technical skills are reguired to manage and maintain a NAS server. [click next] The basic principals of NAS are based on mature networking and storage technologies. [click next] All of these things add up to a much lower cost of ownership. [click next] Baixo TCO

26 NAS é a Solução!! Movimenta os dados mais perto dos usuários
Performance optimized for file services Suporte a ambiente heterogêneo (Windows, UNIX, Linux e Apple) Simples de gerenciar e manter – Baixo nível de conhecimento técnico The attributes of NAS servers provide very robust and flexible storage solutions. In larger networks with departmental subnets or remote offices, NAS servers can move data closer to the user. By installing a NAS server in the same LAN as the user, access performance will be increased dramatically. [click next] Since a NAS servers are designed specifically for networked file services performance is optimized for file services as opposed to how general purpose servers are optimized. [click next] With no special software to install, NAS servers can support all major file access methods, such as Windows, UNIX, Novell and Apple. [click next] As mentioned earlier, since NAS servers are simple to manage and maintain with little to no special skills required it is an attractive solution for all IT organizations. [click next] With simplified setup and administration, NAS servers lower the Total Cost of Ownership and thus, become the preferred choice as the most cost effective storage solution. [click next] Facilidade no setup, administração e baixo TCO

27 Problemas tradicionais de rede e soluções
Pequenos problemas de Rede Capacidade de Storage Rede saturada de tráfego I/O CPU do Servidor Saturada com I/O NT Server Ethernet Switch Marketing Audio Video files Database management Presentations Graphic files Problemas em redes Mid size & enterprise Trafego de rede desbalanceado Gerenciamento de múltiplos clientes Instalação & Gerenciamento Ambiente Dinâmico Janela de backup insuficiente Server UNIX Server Soluções Tradicionais Novos servidores NT/UNIX com Direct attach Raid ou JBOD CPUs mais potentes Engineering CAD files Software programs Modeling data Scientific data The need for fast reliable information to keep companies competitive has trickled down to the smallest networks. The most common problems are storage, network saturation, and CPU saturation. Traditional solutions include more powerful CPUs or server attached storage and faster networks. Because you can only plug so much storage behind a processor before saturating it, storage has been dictating the need for servers. [click next] As the networks get larger and more complex additional problems arise. [click next] These include: Traffic imbalance caused by large files such as engineering CAD files or marketing presentations with audio/video files. Multiple client environments (i.e.UNIX & NT on same network) creating separate resource allocations issues. Complex installation and management. Larger networks are dynamic entities with administration personnel constantly balancing resources. Daily hardware changes are not uncommon. And of course insufficient backup windows as online storage resources swell to meet user requirements. [click next] Traditional solutions include: Adding Ethernet switches to prioritize traffic conflicts, but these cannot cure saturated networks. Many companies are installing gigabit or fibre backbones or even entire gigabit or fibre networks to speed traffic along. Occasionally administrators install remote servers to localize network traffic Some administrators distribute storage, storage I/O and backup between many individual servers to facilitate faster data access and complete backups. In some cases companies are satisfied with partial or weekly backups Data Server Redes Mais Rápidas Servidores Remotos com Storage Servidores dedicados para I/O com tape drivers individuais Backups Parciais e Semanais Remote Server

28 Como o NAS resolve estes problemas?
NAS para File Services e Servidores para Aplicações Benefícios Conexão direta a rede utilizando Hub, Switch ou Router. Remove o fluxo I/O dos servidores de aplicação, aumentando a potencialidade destes servidores Ganhos significativos em storage e também em fluxo de dados I/O (mais performance) Trafego de rede localizado Gerenciamento facilitado, Local ou Remoto Instalação em menos de 10 minutos Não necessita de licenças Escalabilidade em performance e capacidade Acesso compartilhado Windows, UNIX, e Apple Storage de Alta Disponibilidade Marketing Audio Video files Database management Presentations Graphic files NT Server NAS File Server NAS File Server Ethernet Switch UNIX Server There are many benefits for using NAS servers to solve your most critical network and storage issues. [click next] NAS servers plug in just as any other workstation or server to a port on your network. Some NAS servers have optional support for different network architectures such as gigabit or fibre-channel and some are field upgradeable offering investment protection as businesses needs change. Buy removing data I/O from application servers you save money by extending the useful life of existing servers. Data I/O is improved because NAS servers use a thin operating system. Operating Systems like NT or UNIX are designed to accommodate all peripheral devices or programs that could be installed on a server. NAS operating system only have to account for a fixed set of devices and programs making them very small and very efficient for file services. Since NAS servers have IP addresses you can physically located the unit at an individual workstation or within a group and traffic remains local to that individual or group. Most NAS servers have been designed specifically for either local or remote management. Good NAS servers are designed as appliances and can be installed very quickly without interruption of service. They can also be redeployed with the same effort should you need to physically reallocate resources. Most NAS boxes do not require seat license or server O/S licenses. Other features to look for are scalability, multiple platform support and high availability. NAS File Server Engineering CAD files Software programs Modeling data Scientific data

29 SOHO Backup InoStor NAS Access Control / Domain Controller
Consolidated Storage Server (RAIDn secured) Multi Platform Host Integrated Tape Drive Backup Snapshot/Rollback

30 SMB Backup InoStor NAS Consolidated Storage Server (RAIDn secured)
Application Server (Windows Applications) Application Server (Unix-Linux-NFS) Domain Controller (Optional) InoStor NAS Consolidated Storage Server (RAIDn secured) Multi Platform Host Domain Controller (Optional) Snapshot/Rollback SLR Autoloader

31 Enterprise Backup SDLT/LTO Autoloader
InoStor NAS File Server (RAIDn secured) InoStor NAS File Server (RAIDn secured) Application Server (Windows Applications) Application Server (Unix-Linux-NFS) Domain Controller (Optional) SDLT/LTO Autoloader InoStor NAS Backup Server incl. Disk to Disk Backup & Archive to Tape Snapshot/Rollback

32 Network Backup Appliance (NBA)
InteliNAS and ValuNAS can be used as a Network Backup Appliance using the optional CA or BakBone software with the internal HDD Disk-to-Disk Backup (D2D) Data contents on the other servers or other InoStor NAS can be backed up to the HDD volume of the NBA for faster backup when client licenses are installed Dual onboard NICs can be used to streamline network traffic for I/O requests by both clients or backup Disk-to-Disk-Tape (D2D2T) A tape autoloader or library can be directly connect to the NBA. This enables migration of the disk based backup volume to tape for offsite storage or vaulting without negatively affecting file serving operations

33 Implementing NAS as Backup Appliance
Gigabit Ethernet NIC NIC Client NIC SCSI NFS/CIFS Mount Disk Server (PDC) NIC Client NIC SATA NIC NIC NAS (File Server) Disk Client NIC SCSI NIC SATA Client NBA (Backup Server) Tape Library Primary Ethernet Disk

34 Backup Appliance: Explained
The InoStor NAS combines the NAS and Backup Server feature sets, offering file-serving capabilities and at the same time double up as a backup server. The resident NAS feature set, dual Ethernet and Optical GbE uplink (optional) can be used for segregating I/O and backup traffics, remote vaulting or long distance replication. Web GUI Management: Setting up disk volume RAID Level configuration NAS configuration The NBA (NAS) is also a backup server which sees 2 Libraries: the Virtual Library (local Disk Volume) and the local SCSI attached Tape Library Cloning or migration of the save-set (on the NBA/NAS) to tape is achieved and controlled using the software together with the available client agents and options. Operational functions are achieved using built-in backup management software; backing up to disk cache and migrating to a tape volume afterward. The backup data can be restored directly from the BA SCSI attached Tape Library to the designated client across the network.

35 Backup Appliance: A Task for the Software
Saturn 3 NIC NIC NIC Client Restore From Tape Oracle (AIX) Uranus NIC Neptune Client NIC SCSI NIC NIC SATA NIC NBA (Backup Server) Tape Library Exchange (Windows) Client 2 Jupiter 1 Backup migrate to Tape NIC Backup Stage to Disk NIC Client (Remote NBA Manager) NIC Solaris (Client) Disk Gigabit Ethernet Primary Ethernet

36 Backup Appliance: A Case for ARCserve
BrightStor ARCserve component for server Uranus (BA): BrightStor ARCserve Backup Server (Linux); no limit to no. of client connections as long as client agent is installed in the respective client machines Native support for Disk-based backup (staging) Tape Library Option (unlimited no. of slots and drives) BrightStor ARCserve component for server Saturn: BrightStor ARCserve Client Agent for UNIX (supports AIX) No support for Backup Agent for Oracle under AIX BrightStor ARCserve component for server Neptune: BrightStor ARCserve Client Agent for Windows Server No support for Backup Agent for MS Exchange under Windows BrightStor ARCserve component for server Jupiter: BrightStor ARCserve Client Agent for UNIX (supports Solaris) Backup Appliance is a file device as well as a backup management server attached to the local network that can be remotely managed using a web console.

37 Backup Appliance: A Case for NetVault
NetVault component for server Uranus (BA): NetVault Server (Linux) with 3 client connections (no. of additional clients can be purchased) Virtual Tape Library Plugin (for Disk-based Library) Tape Library Plugin (license based on no. of slots and drives) Netvault component for server Saturn: NetVault Client for AIX Oracle (online or RMAN) Plugin for AIX NetVault component for server Neptune: NetVault Client for Windows Server Exchange Plugin for Windows NetVault component for server Jupiter: NetVault Client for Solaris Backup Appliance (TD NAS) is a file device as well as a backup management server attached to the local network that can be remotely managed using a workstation or PC with NetVault GUI installed.

38 Five Levels Data Availability
RAID RAIDn Snapshot Replication Tape Backup RAIDn Snapshot Replication Tape Backup

39 12-Disk InteliNAS

40 12-disk InteliNAS Front Each disk has two LEDs seen through glass inserts. The upper one is blue when power to the disk is on. The lower one flashes with disk activity and turns red if the disk fails. Disk Activity – Flashing or steady light indicates disk I/O activity. Port Active – Flashing or steady light indicates that the port has activity. Power Switch – Turns on the NAS. Reset Switch – Mimics a reboot without turning power off or on. Use only if the NAS is not responding. Power On – Lights if power is on.

41 1-U Four-disk InteliNAS
Disk LED lights viewed through holes in grill

42 Back configuration

43 Painel Traseiro do Inostor (PerformNAS e InteliNAS)
Letra Nome Uso A Conector do Mouse Não Utilizado G Conector de Rede Secundário Normal B Conector Teclado H Conector SCSI LVD Externo Tape Drive/ Autoloader C USB/ Impressora I Conector SCSI (RAID) Cascateamento JBO D Conector Serial J Placa de Rede opcional Opcional E Conector de Vídeo VGA K Alarme shut off Quando Necessário F Conector de Rede Primário L Plug de Força AC (Pode ser redundante) 100/220 Automático

44 BayNumbers x

45 Disk Management

46 InteliNAS 2U Rackmount Front loading hot swap 10,000 RPM SCSI
RAID 0, 1, 4, 5, 0+1, & RAIDn 10/100 & 10/100/1000 LAN Connection Optional multiple Gigabit copper or fiber Dual redundant hot swap power supplies Optional SCSI Card for Tape Backup Support InteliNAS GB, 440GB, 882GB Internal Tape Bay SDLT and SLR Other tape technologies optional InteliNAS GB 1.3TB

47 ValuNAS 2U Rackmount Front loading hot swap 150MB/Sec SATA Drives
RAID 0, 1, 4, 5, 0+1 & RAIDn 10/100 & 10/100/1000 LAN Connection Optional multiple Gigabit copper or fiber Dual redundant hot swap power supplies Optional SCSI Card for Tape Backup Support ValuNAS GB, 960GB Internal Tape Bay SDLT and SLR Other tape technologies optional ValuNAS TB, 1.4TB, 2.25TB

48 Especificações Gerais
Garantia de 03 anos (Atendimento On Site Opcional) Agências certificadoras: UL, cUL,CE, C-Tick, FCC - Class B Atendimento On-Site opcional Ambiente operacional: 10C a 35C (50F a 95F) Dimensões: 2U x 650mm (25.6” profundidade) Alimentação: V AC

49 Fácil de Instalar Verdadeiramente Plug and Play
Plug na alimentação e na conexão Ethernet Conexão IP fixo ou via DHCP Facilmente configurável via Web interface Quick Start em menos de 15 minutos

50 Escalabilidade além de >2.6TB
Múltiplos Endereços IP 2.6TB via IP SCSI 2.25 via IP SATA File Switch Um único endereço IP Acima de 256 unidades NAS

51 File Switch Permitindo Alta Escalabilidade em sistemas NAS

52 Diagrama do File Switch

53 Infraestrutura NAS escalável
NAS high End (NetApp) NAS Array File Switch + Dispositivos NAS Inexpensive NAS Devices Dispositivos NAS

54 Criando um Array de NAS File Switch Dispositivos NAS
Striping + mirroring File aggregation Load balancing File Switch Dispositivos NAS

55 Array de NAS com redundância
Layer 2 switches Dispositivos NAS File Switches

56 Escalabilidade Switches Layer 2 File Switches Dispositivos NAS

57 Configurações flexíveis para atender as necessidades dos clientes
Configuração para Alta Performance 300+ MB/sec Bandwidth from Disk and Cache 4-6 File Switches 20+ NAS in the Array Configuração para Alta Disponibilidade Um ou Mais File Switches Switches Layer 2 interconectados Dispositivos NAS e File switches com conexões cross dual Alta Capacidade e Baixo Custo Um File Switch com no máximo de 256 NAS Perfeito para aplicações de Archiving menos de $.01/MB

58 Exemplos de Aplicações
Aplicações de Imaging (GED) Imagens escaneadas (processos, laudos, documentos,etc) Serviços de Mapas Fotográficos (Fotometria) Imagens Médicas (radiologia, tomografia, ressonância, etc) Fotografias Conteúdo Vídeo “On Demand” Circuito de Câmeras de Vigilância Arquivos Near On Line Bibliotecas Museu de Arte, etc

59 Alguns Números Permite sistemas de mais – 47TB
Sistemas com mais de 2GBytes/sec Crescimento e Escalabilidade Linear Acima de Dispositivos NAS Baixo custos de TCO

60 Especificações do Software e Hardware do File Switch

61 Características do Software - Release 1.1
Scalable NAS Array Infrastructure NAS array with single server set of up to 256 NAS devices Ability to stack up to 16 file switches with linear bandwidth scalability Peak bandwidth performance from cache of 170MB/sec from single file switch Single universal namespace across multiple file switches Performance and Capacity aggregation of NAS devices in server set Non-disruptive building block approach to incremental scalability Rules-Aware Storage Management Automatic file data distribution across NAS devices in the server set Data aggregation (mirroring and striping) according to configurable rules Simple Management Control Command line, Web user and SNMP interface management Dynamic update of aggregation rules Dynamic addition of NAS devices in the server set File system integrity check (limited to metadata checks) Recovery utility Integração com o Windows 2000 Autenticação a Domínio NT e ao Active Directory (ADS) Controle de acesso e segurança a nível de arquivos e diretórios Suporte a Clientes CIFS, e todos os SO suportados pelo Windows 2000 Red Hat Linux V8.0 (LINUX)

62 Características do Hardware
Portas 2 Portas LAN-Side Gigabit Ethernet (cobre ou fibra) 2 Portas NAS-Side Gigabit Ethernet (cobre ou fibra) 2 Portas gerenciáveis 10/100 Mbps Ethernet (cobre) Porta Serial para diagnóstico (gerenciamento fora da rede) Fonte de Alimentação 2+1 redundante, hot-swap 2 cabos de força Alerta Sonoro Display para Nome e Status Display de LCD com 2 linhas e 16 caracteres Especificações mecânicas 3U 19” rack-mount, com rails Portas no painel traseiro Fluxo de ar -> Frete-para_Traseira, ventilação redundante Certificações: CE, UL, FCC, CSA, etc.

63 InoStor Delivering reliable, high performance network storage products to the marketplace with simple setup and low maintenance-Get Attached

64 Dúvidas / Perguntas???

65 www.tandberg.com.br para MAIS INFORMAÇÕES visite nos na web : ou
Tandberg Data São Paulo, SP Amend address and telephone numbers only. Leave and web-address unchanged.

66 Obrigado pela presença de TODOS!!!
© 2003 Tandberg Data. Todas as marcas aqui mencionadas pertecem aos seus respectivos fabricantes All other trademarks are the property of their respective companies.