ZFS Pool for Virtual Machines

▤ Summary

Running VirtualBox on ZFS pool intended for general use is not exactly the smoothest experience. Yes, you can play with record size and adding SLOG device but you can also go slightly different route. My testing has found that simple SSD with the following settings does wonders: First of all, you don’t want compression. Depending on your exact hardware you might find that going to 8K or even higher might hit the sweet spot. PPS: I usually just spin up temporary virtual machines for testing and thus I don’t care much about them long term.

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