单项选择题

An eX5 client is concerned about the cost-per-GB of the proposed SAS disk-based solution, and suggests using SATA disk technology in order to reduce costs for their 24x7 mission-critical Microsoft SQL Server application. Which of the following addresses the customer issues?（）

A.SAS drives support automatic rebuild upon failure, SATA must be rebuilt manually
B.SAS drives support Fibre Channel attachment to eX5 servers, SATA does not
C.SATA drives require different, more expensive cables, and require more floor space compared with SAS
D.SATA storage is slower, has lower mean time between failure, and designed for a lower duty cycle compared with SAS

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