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      1  1.3  andvar # $NetBSD: targets,v 1.3 2022/05/28 21:57:39 andvar Exp $
      2  1.1     agc #
      3  1.1     agc # Structure of this file:
      4  1.1     agc #
      5  1.1     agc # + an extent is a straight (offset, length) pair of a file or device
      6  1.1     agc #   it's the lowest common storage denominator
      7  1.1     agc #   at least one is needed
      8  1.1     agc # + a device is made up of one or more extents or other devices
      9  1.3  andvar #   devices can be added in a hierarchical manner, to enhance resilience
     10  1.1     agc # + in this example, no device definitions are necessary, as the target
     11  1.1     agc #   will just use a simple extent for persistent storage
     12  1.1     agc # + a target is made up of 1 or more devices
     13  1.1     agc # The code does not support RAID1 recovery at present
     14  1.1     agc 
     15  1.1     agc # Simple file showing 1 extent, mapped straight into 1 target
     16  1.1     agc 
     17  1.1     agc # extent	file or device		start		length
     18  1.1     agc extent0		/tmp/iscsi-target0	0		100MB
     19  1.1     agc 
     20  1.2     agc # target	flags	storage		netmask
     21  1.2     agc target0		rw	extent0		0.0.0.0/0
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