Re: howto cache a thinpool-device?

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Hi list,

what now worked:

- creating a cached data-lv
- creating a non-cached meta-lv
- converting data-lv to a thinpool-device with meta-lv as metadata

what not: doing the same thing with a cached meta-lv. Does this make sense?

Is the metadata already cached by lvm-logic? Do i have a cache thinpool
(with non-cached metadata) with the used way?

Tfh!
Oliver


Am 09.08.2014 um 15:43 schrieb Oliver Rath:
> Hi list,
>
> Im playing around with the new cache options. Ive created a lvm-device
> on my cache-disk named lvx-cache (vg is dmivg). Additionally Ive created
> a thinpool-device named winthinpool.
>
> Now i wanted to use my cache-device to cache my thinpool-lvm, but this
> doesnt work:
>
> ~# lvconvert --type cache --cachepool dmivg/lvx_cache dmivg/winthinpool
>   Can't cache thin-pool volume dmivg/winthinpool.
>
> isnt is possible to cache a thinpool-device?
>
> Tfh!
> Oliver
>
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> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

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