Hi

You can verify the exact mapping using the following command: ceph osd map 
{poolname} {objectname}

Check page http://docs.ceph.com/docs/master/man/8/ceph for the ceph command.

Cheers

JC

While moving. Excuse unintended typos.

> On Feb 1, 2015, at 08:04, Loic Dachary <l...@dachary.org> wrote:
> 
> 
> 
>> On 01/02/2015 14:47, Dennis Chen wrote:
>> Hello,
>> 
>> If I write 2 different objects, eg, "john" and "paul" respectively to
>> a same pool like "testpool" in the cluster, is the primary OSD
>> calculated by CRUSH for the 2 objects the same?
> 
> Hi,
> 
> CRUSH is likely to place john on an OSD and paul on another OSD.
> 
> Cheers
> 
> -- 
> Loïc Dachary, Artisan Logiciel Libre
> 
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