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I don't think you read the comment thoroughly. This is the point.

Also, the discussion is centered around ZFS, there's no reason to bring up LVM. Everyone knows there's many ways to skin this cat and it doesn't make anyone appear any smarter because they know of one way.

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My point is that it's not really a great way of 'backing' up a database because typically you want the transactions after you've made the change as well.

Bringing up alternatives is the norm around here. Some people don't know LVM.

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