Re: rbd map error with new rbd format

[Josh Durgin <josh.durgin@inktank.com>]

On 10/18/2012 01:01 AM, Eric_YH_Chen@wiwynn.com wrote:
> Hi, Josh:
>
>> Yeah, format 2 and layering support is in progress for kernel rbd,
>> but not ready yet. The userspace side is all ready in the master
>> branch, but it takes more time to implement in the kernel.
>> Btw, instead of --new-format you should use --format 2. It's in
>> the man page in the master branch.
>
> As you mentioned before, http://www.spinics.net/lists/ceph-devel/msg08857.html
> The kernel rbd is not ready at September, so we cannot map rbd to a device.
> Would you mind to estimate when will be available? And which version of kernel? (3.5 or 3.6?)
> Thanks!

At this point format 2 is understood by the kernel, and the
infrastructure for opening parent images and the I/O path
for clones is in progress. We estimate about 4-8 weeks for this,
but you should check back then.

Kernel 3.6 was already released, so this would probably go into 3.8 or
3.9.

Josh