On Fri, Jun 07, 2013 at 11:54:20AM -0500, Alex Elder wrote:
> On 06/03/2013 04:24 AM, Chris Dunlop wrote:
>> I pulled the for-linus branch (@ 3abef3b) on top of 3.10.0-rc4, and it's
>> letting me map a format=2 image (created under bobtail), however reading
>> from the block device returns zeros rather than the data. The same image
>> correctly shows data (NTFS filesystem) when mounted into kvm using librbd.
>
> Have you tried using a format 2 image that you created using
> the Linux rbd environment? It would be good to know whether
> that works for you.
Sorry, how to you mean "created using the Linux rbd environment"?
The one I was trying was created using:
rbd create --format 2 xxx --size nnnnn
...then populated using qemu/librbd.
> Can you also send me the result of running each of these commands:
>
> foo=$(rados get --pool=rbd rbd_id.xxx - | strings)
> rados ls --pool=rbd | grep rbd_data | grep "${foo}"
> unset foo
That results in a 3.2MB, 83973-line file, starting like:
rbd_data.e4d72ae8944a.0000000000027066
rbd_data.e4d72ae8944a.000000000001bc77
rbd_data.e4d72ae8944a.000000000002112e
rbd_data.e4d72ae8944a.000000000002550c
rbd_data.e4d72ae8944a.000000000001b6b3
rbd_data.e4d72ae8944a.000000000002875b
Complete file is at: https://www.dropbox.com/s/5bw6ba7ifatf1mu/rbd_data.out
(Note: it's a long w'end here on Oz, I won't be back at this till Tue.)
Cheers,
Chris
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