Two related questions: - given an existing pool with dedup'd data, how can I find the current size of the DDT? I presume some zdb work to find and dump the relevant object, but what specifically?
- what's the expansion ratio for the memory overhead of L2ARC entries? If I know my DDT can fit on a ssd of size X, that's good - but how much RAM do I need for that ssd to be usable effectively as l2 cache? -- Dan.
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