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Re: [Qemu-devel] [Bug 1250360] [NEW] qcow2 image logical corruption afte
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [Bug 1250360] [NEW] qcow2 image logical corruption after host crash |
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Date: |
Wed, 13 Nov 2013 11:11:03 +0100 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Nov 12, 2013 at 09:17:34AM -0000, Blue wrote:
Please post the qemu command-line (ps aux | grep qemu) for the affected
VM.
What kind of workload is accessing the disk? Guest OS and version?
Please also confirm that nothing else is accessing the image file while
the VM is running. It is not safe to use tools like qemu-img on the
file while the VM has it open.
> Image was qcow2, thin provisioned, created like this :
> qemu-img create -f qcow2 -o cluster_size=2M imagename.img
Interesting note, you are setting a custom cluster size. It should work
but it's not the default configuration that is well-tested.
> I can privately provide an image displaying the corruption.
Please send a link to address@hidden and address@hidden We can
help you inspect the image to determine the nature of the corruption and
what data can be restored.
Stefan