Re: PG's and Pools

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On Wed, Jan 29, 2014 at 2:46 AM, McNamara, Bradley
<Bradley.McNamara@xxxxxxxxxxx> wrote:
> My two questions are:  is there any way to recreate the pools with the
> original pool number value that they had?  Does it really matter that data
> pool is now 3, and rbd is now 4?

You can't recreate pools with already-used IDs.

It doesn't matter that the ID of the 'rbd' pool has changed, because
the RBD client refers to it by name: RBD will just work with the new
pool.

The 'data' and 'metadata' pools are more sensitive, because CephFS
refers to them by ID (ignore if you're not using CephFS).  You can fix
it up by using "ceph mds newfs" which takes the new data and metadata
pool IDs as arguments.

Cheers,
John
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