Adding caching to existing volumes?

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Hi all

As far as I can understand from the bcache docs, a volume cached with bcache, must be formatted and setup for bcache in the first place. I come from a ZFS environment, where adding SLOG or L2ARC is done dynamically, so I have a few questions:

- Would it be somewhat possible to add caching to an existing volume and its data?
- What would happen if the cache device dies - does the whole filesystem become inaccessible?


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Vennlige hilsener / Best regards

roy
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