It's constant for an RBD image and is tied to the image's internal unique ID.

-- 

Jason Dillaman 


----- Original Message ----- 

> From: "min fang" <louisfang2...@gmail.com>
> To: "ceph-users" <ceph-users@lists.ceph.com>
> Sent: Friday, January 8, 2016 4:50:08 AM
> Subject: [ceph-users] can rbd block_name_prefix be changed?

> Hi, can rbd block_name_prefix be changed? Is it constant for a rbd image?

> thanks.

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