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 addresses the customer issues of the following？（）

• A、SAS drives support automatic rebuild upon failure， SATA must be rebuilt manually
• B、SAS drives supportFibre 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