Hi,

I have a few simple questions regarding relatively new feature LVM cache/dm-cache.

From second hand information on internet, it appears that you cannot resize cached volume. Please correct me if I am wrong: to resize a cached volume, one needs to lvremove the cache, resize and recreate the cache?

In scenario where cache device fails, how safe is the data on the cached LVM?

Is it possible to make snapshots of the cached device?

Before I test these things I will need to upgrade distribution (as the release I am on does not have the LVM cache), which means switching to systemd (I would rather avoid, if LVM cache does not fail gracefully).

Thank you very much!

Sergei.

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