I have made some performance tests with the new Allocation Classes on newest OmniOS bloody on ESXi 6.7U3 with Optane partitions (pass-through) as special vdev and Slog.

As I was told that special vdevs are removable, I tried a vdev remove.
During this, OmniOS crashed and after a few secondes after reboot, OmniOS crashed again. I had just enough time to delete /etc/zfs/zpool.cache to hinder a mount on next reboot.

Is this a know problem?


Btw. Allocation Classes is a real must have feature,
results see http://napp-it.org/doc/downloads/special-vdev.pdf


gea
@napp-it.org



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