Relatório revela as marcas de HDs que apresentaram as menores chances de falha em 2016

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A empresa de armazenamento em nuvem, Backblaze, produz desde 2013 um relatório sobre a confiabilidade dos discos rígidos, que é baseada nos dados de operação de HDs utilizados pela própria companhia. Em 2016, um total de 1.225 HDs falharam nas instalações da Backblaze, 1,95% das unidades em relação ao todo (71,939 unidades). Essa marca foi bem melhor que em anos anteriores, 2,47% em 2015 e 6,39% em 2014, o que nos permite concluir que as unidades de disco rígido estão realmente durando mais.

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Dentre as empresas, os HDs da marca HGST, uma subsidiária da Western Digital, foram os que menos falharam. Das 24.545 unidades apenas 132 apresentaram falha, percentual de problemas com as unidades de apenas 0,60%. Curiosamente a que mais apresentou falhas foi a Western Digital, das 1,626 unidades, 61 delas apresentaram falha, percentual de erro 3.88%. Dentre todas as marcas listadas, a Seagate é a que conta com o maior número de HDs utilizados pela Backblaze, 45,531. Desse montante, 1,029 apresentaram problema, taxa de erro de 2,65%.

Em termos de capacidade, os HDs de 4 TB foram os mais utilizados pela Backblaze em 2016: 54,189, e 1,042 apresentaram falha. O melhor rendimento foi com as unidades de 3 TB, foram utilizados 6,605 unidades e apenas 93 delas apresentaram falha, percentual de erro de 1.40%.

Fonte: Guia do Hardware.

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