Re: Converting existing partition to bcache backing device without loss of data

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ven. 09 août 2013 02:36:57 CEST, Kent Overstreet a écrit :
> On Thu, Aug 08, 2013 at 09:27:33AM -0700, Adam Brenner wrote:
>> Howdy,
>>
>> I am in the process of testing bcache on our HPC cluster to act as
>> cache for our gluster storage (~750TB).
>>
>> I notice that during the setup process on our test cluster, our
>> backing device (where all our data is stored) will need to be
>> formatted in order to support bcache.
>>
>> Does a way exist so we do not have to format our backing device? Or is
>> working being done to support this?
>
> Unfortunately, there's no general purpose way - the faq explains why (I
> just fixed the wiki so it's there again :)
>
> http://bcache.evilpiepirate.org/FAQ/
>
> However, Gabriel de Perthuis has a tool to do in place conversion - I
> can't remember if it was limited to lvm devices or not - Gabriel, what
> was the link to that again? I should stick a link to it in the wiki or
> give you an account on it so you can.

Yup, here is my conversion tool: https://github.com/g2p/blocks

I've added it to the FAQ.
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