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I'm using ZFS with non-ECC RAM. Widely enough. I'm not writing this to say it's safe. However, for several years I didn't see zfs corruption yet. Furthermore, when using zfs on ancient hardware, I saw all sort of memory problems, even an inability to boot up. From my experience - you will encounter all sorts of fatal kernel traps faster than the zfs data ...


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I think that the root of this question is that there are two fundamentally different methods of doing snapshots. A VMWare snapshot means that is halts writes to its primary disk and instead puts all writes into a separate snapshot disk. Reverting to this snapshot means discarding all the writes since it was taken (which causes very little overhead), ...


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Don't focus on snapshots. It's clouding your judgment :) VMware has templating and cloning functionality built into vCenter. You need a $600 vSphere Essentials license to enable this. You can create a VM to your taste, then clone it to a template. That template can then be used to generate new virtual machines. This allows you to have a "clean state" but ...


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Basicly there is no official way to recover other than restore from backup. But there is ZFS feature called rewind, that may be possible to remove transactions from the pool to a point that the pool is functional again. The following text is from ZFS Internals blog part #11 DO NOT TRY IT IN PRODUCTION. USE AT YOUR OWN RISK! zpool import -FX mypool ...



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