Hi All,

I want to understand on how do CEPH users go about Quota Management when CEPH 
is used with Openstack.

  1.  Is it recommended to use a common pool say “volumes” for creating volumes 
which is shared by all tenants ? In this case a common keyring 
ceph.common.keyring will be shared across all the tenants/common volume pool.
  2.  Or is it recommended to use a pool for each tenant say “volume1 pool for 
tenant1” , “volume2 pool for tenant2" ?  In this case we will have a keyring 
per volume pool/ tenant I.e. Keyring 1 for volume/tenant1 and so on.

Considering both of these cases how do we guarantee that we enforce a quota for 
each user inside a tenant say a quota of say 5 volumes to be created by each 
user.

Thanks,
Vilobh


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