Do I need to reserve disk space for UFS snapshots?

[Kent Ho]

> FreeBSD snapshots do not work the same way as NetApp snapshots.  First, 
> they must reside on the same filesystem as the snapshotted filesystem. 
> They will initially eat up some space upon creation equal to the space 
> used by the cylinder group summaries and superblocks, but it isn't a 
> whole lot.  You'll need to have however much space is changed weekly for 
> each snapshot, so if 10Gb per week is changed, then you'll need that 
> much space per snapshot file done.

Thanks. FreeBSD cost less in terms of space required to keep snapshots?

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> Eric
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