Re: possibility to delete all zeros

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On 02-10-15 14:16, Stefan Priebe - Profihost AG wrote:
> Hi,
> 
> we accidentally added zeros to all our rbd images. So all images are no
> longer thin provisioned. As we do not have access to the qemu guests
> running those images. Is there any other options to trim them again?
> 

Rough guess, which requires downtime:

rbd -> qcow2
qcow2 -> rbd

With qemu-img you could do that. I don't know if it works though.

> Greets,
> Stefan
> 
> Excuse my typo sent from my mobile phone.
> 
> 
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