Hi folks,

since I'm running Illumos in VMs (and have to transfer images via web),
I need to keep the images (usually qcow2) small.

What happens when lots of space is used once later freed again ?
Does ZFS automatically trim or zero-out those blocks, so the host can
doesn't need to store them anymore ?


thx
--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
i...@metux.net -- +49-151-27565287


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