It also works with RAID devices and can tell us how much free space we have left on our partitions.

它还可以与RAID设备工作，告诉我们分区上还有多少可用空间。

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RAID-Z traverses the available metadata to read only the data that's relevant for the geometry and avoids reading the unused space on the disk.

RAID - Z遍历可用的元数据以便只读取有关几何学的数据并避免读取磁盘上未使用的空间。

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The space will also be affected by the type of RAID-Z configuration required (more on this in the RAID-Z Options section).

空间还会受到所需RAID - Z配置类型的影响(在RAID - z选项一节中，有更多关于这方面的介绍)。

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The RackMac mini Xserver supports one half-length, x16 (x4 mode), PCIe 2.0 card to enable the use of professional video capture cards, 8Gb Fibre Channel cards, 10-Gigabit Ethernet cards, and RAID controller cards with a racked Mac mini all in 1U rack space.

ENGADGET: Sonnet announces RackMac mini Xserver, makes Apple desktop IT life seem more legit