使用多个服务器来删除一个账号可能会提升删除的速度，但是需要协作以避免重复删除。

Using multiple servers to delete one account might improve deletion speed, but requires coordination so they aren't duplicating effort.

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此外，这两个文件系统都支持数据重复删除、内部数据保护(类raid保护)、数据和元数据校验和以及其他存储功能(如快照)。

In addition, both file systems support data de-duplication, internal data protection (RAID-like protection), data and metadata checksums, and other storage features (like snapshots).

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一些 IT 专业人士认为，重复数据删除和单实例存储（SIS）是一回事，但其实并非如此。

Some IT professionals think that deduplication and Single Instance Store (SIS) are the same thing, but they are not.

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