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Aula de Disco Magnético

Aula de Disco Magnético

nilsonmori
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Aula de Disco Magnético

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  1. Instalação e Manutenção de Computadores Disco Magnético (Abril 2013) Atualizado em 01/01/2011 Prof. M.Sc Nilson Mori Lazarin

  2. Disco Magnético Detalhes • 5400rpm / 7200rpm / 10000rpm / 15000rpm • Tempo de latência (latency Time) (Posicionamento do disco) • TL = (60/RPM)*1000 • Tempo de busca (seek time) (Tempo descolamento da cabeça de leitura) • FullStroke (primeira até a última trilha) • Track-to-Track (de uma trilha para outra) • Average (setor aleatório) • Tempo de Acesso • Tempo de latência • Tempo de busca • Tempo estabilização execução • (0,5ms) Leia: (Paixão, 2010, p.110-118) Prof. M.Sc Nilson Mori Lazarin

  3. Disco Magnético Detalhes • Cache (buffer) Leia: (Morimoto, 2009, p. 338-367) Prof. M.Sc Nilson Mori Lazarin

  4. Disco Magnético Interface • Paralell ATA • Ultra ATA/100 -> 100MBps • Ultra ATA/133 -> 133MBps • Serial ATA • SATA-I -> 150MBps • SATA-II -> 300MBps • SATA-III -> 600MBps • SCSI • Ultra 160 SCSI -> 160MBps • Ultra 320 SCSI -> 320MBps • SAS (Serial ATA SCSI) • 3Gbps • 6Gbps Prof. M.Sc Nilson Mori Lazarin

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