Re: [PATCH] rbd: Use RBD fast-diff for querying actual allocation

2020-06-09 Thread 李义
On 6/9/20, Jason Dillaman wrote: > On Tue, Jun 9, 2020 at 3:31 AM Yi Li wrote: >> >> Since Ceph version Infernalis (9.2.0) the new fast-diff mechanism >> of RBD allows for querying actual rbd image usage. >> >> Prior to this version there was no easy and fast way to query how >> much allocation a

Re: [PATCH] rbd: Use RBD fast-diff for querying actual allocation

2020-06-09 Thread 李义
CC qemu-block and rbd maintainers On 6/9/20, Yi Li wrote: > Since Ceph version Infernalis (9.2.0) the new fast-diff mechanism > of RBD allows for querying actual rbd image usage. > > Prior to this version there was no easy and fast way to query how > much allocation a RBD image had inside a Ceph

Re: [PATCH] rbd: Use RBD fast-diff for querying actual allocation

2020-06-09 Thread Jason Dillaman
On Tue, Jun 9, 2020 at 3:31 AM Yi Li wrote: > > Since Ceph version Infernalis (9.2.0) the new fast-diff mechanism > of RBD allows for querying actual rbd image usage. > > Prior to this version there was no easy and fast way to query how > much allocation a RBD image had inside a Ceph cluster. > >

[PATCH] rbd: Use RBD fast-diff for querying actual allocation

2020-06-09 Thread Yi Li
Since Ceph version Infernalis (9.2.0) the new fast-diff mechanism of RBD allows for querying actual rbd image usage. Prior to this version there was no easy and fast way to query how much allocation a RBD image had inside a Ceph cluster. To use the fast-diff feature it needs to be enabled per RBD