Design choices and implementations that address security requirements often have an adverse impact on a solution's performance.

满足安全性需求的设计选择和实现通常会对解决方案的性能有不利的影响。

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Reasons for this include cost, requirements that change as the project progresses, and organizational opposition by stakeholders of the current implementations.

这其中的原因包括所带来的成本、项目进行过程中会变化的要求以及当前实现的干系人的反对。

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SAM defines the SCSI systems model, the functional partitioning of the SCSI standard set, and the requirements applicable to all SCSI implementations and implementation standards.

sam定义scsi系统模型、SCSI标准集的功能性分区，以及适用于所有scsi实现和实现标准的需求。

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