A.1.6. The zero Mapping Target

A.1.6. The zero Mapping Target

The zero mapping target is a block device equivalent of /dev/zero. A read operation to this mapping returns blocks of zeros. Data written to this mapping is discarded, but the write succeeds. The zero mapping target takes no additional parameters besides the start and length parameters.

The following example shows a zero target for a 16Tb Device.

0 65536 zero

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