Storage networks architectures / Arquiteturas de redes de armazenamento de dados

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Storage Networks offer shared access to data storage devices, increasing the efficiency and the availability of storage data. They allow data storage devices, from different suppliers, using different access protocols, to be logically available for access. They also allow management of data, backup and recovery, data replication, disaster recovery environments, and data migration can be done in a fast and efficient way, with minimum overhead to the computer systems. In the 80?s, we observed the decentralization of the computational systems. They evolved from a centralized environment to distributed platforms, where systems were separated in operational blocks, with each block executing specific functions. Both the computational systems and the storage envolved to a distributed architecture. The natural evolution of the storage devices was to move from the direct connection to computational systems to a more flexible and shared approach. This happened by the adoption of infrastructures used by computer networks. This work analyzes Storage Networks architectures: Storage Area Network (SAN) and Network Attached Storage (NAS), which are the main architectures that employ computer networks technologies. We will show the advantages of these architectures compared to the traditional form of direct connection of storage devices to computers, the named Direct Attached Storage (DAS) architecture

ASSUNTO(S)

computer network protocols armazenamento de dados redes de informações information networks information warehousing desempenho redes de computação - protocolos performance

ACESSO AO ARTIGO

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