zfs quota question

[Max Laier]

On Tuesday 07 October 2008 12:43:45 Pete French wrote:
> > Yeah, ZFS offers a lot, which can create confusion, unfortunately. Do we
> > limit physical space with quota or only logical (before compression)?
> > Should we take space consumed by snapshots into account or not? etc.
>
> On a related note, is there any way to make du tell me how big files
> are in actual bytes on a compressed ZFS filesystem, aas opposed to space
> on the disc ? I love ZFS, but I suddenly found out last night that I
> have lost the ability tto do a 'du' on a directory to work out if it will
> fit onto a CD or not :-)

But you can't do that on UFS either: sparse files, hardlinks, ...

The GNU du(1) has a "--apparent-size" switch to get the logical size instead 
of what the tool's name suggests (the disk usage).

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