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Re: [Qemu-devel] Block format 'raw' does not support the option 'locking
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From: |
Max Reitz |
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Subject: |
Re: [Qemu-devel] Block format 'raw' does not support the option 'locking' when disable image locking with option locking=off |
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Date: |
Thu, 26 Oct 2017 09:11:46 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 |
On 2017-10-26 03:06, Changlimin wrote:
> share-rw=on is good for raw format file, but bad for qcow2 format file:
>
> Failed to get "write" lock
> Is another process using the image?
>
> Is this intented?
Yes, because you can never share qcow2 image files between VMs. The
qcow2 format itself does not support this, as it may lead to metadata
corruption.
Max
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