Customers that have servers with redundant power supplies or hardware RAID options, please ignore this notice.

冗余电源或硬件RAID选项的服务器的客户，请忽略此通知。

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RAID can be implemented with software or hardware, and hardware RAID can also be divided into host-based RAID and SCSI-SCSI RAID.

RAID可以由软件或硬件实现，硬件RAID又可以分为主机内部硬件RAID和主机外部硬件RAID。

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Hardware RAID is not dependent upon operating system, having higher operating efficiency and fault-tolerant capability than software RAID.

硬件RAID不依赖操作系统，具有比软件RAID更高的运行效率和容错能力。

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