为原lv创建一个可读写的快照。

Create a read-write Snapshot of the original LV.

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每个L TO磁带都是一个可读写的物理分隔对象。

Each LTO cartridge is a physically separate object that can be written to and read from.

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用于访问集合对象本身的属性是只读的，而集合本身是可读写的。

The property to access the collection object itself is read-only, the collection itself is read-write.

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