Creation

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# Mac OS / Unix
dd of=Stone.sparse bs=10g seek=1 count=0

# Linux
fallocate -l fallocate -l 10G Stone.sparse

#
truncate -s 10G Stone.sparse

Use case

You can delete a disk space holder when you disk out of space. So you should create it when you config a server.

Reference:

http://geek.serverpit.com/2017-12-21-fallocate.html