Thank you Konstantin! Tony ________________________________________ From: Konstantin Shalygin <k0ste@xxxxxxxx> Sent: August 9, 2021 01:20 AM To: Tony Liu Cc: ceph-users; dev@xxxxxxx Subject: Re: [ceph-users] rbd object mapping On 8 Aug 2021, at 20:10, Tony Liu <tonyliu0592@xxxxxxxxxxx<mailto:tonyliu0592@xxxxxxxxxxx>> wrote: That's what I thought. I am confused by this. # ceph osd map vm fcb09c9c-4cd9-44d8-a20b-8961c6eedf8e_disk osdmap e18381 pool 'vm' (4) object 'fcb09c9c-4cd9-44d8-a20b-8961c6eedf8e_disk' -> pg 4.c7a78d40 (4.0) -> up ([4,17,6], p4) acting ([4,17,6], p4) It calls RBD image "object" and it shows the whole image maps to a single PG, while the image is actually split into many objects each of which maps to a PG. How am I supposed to understand the output of this command? You can execute `ceph osd map vm nonexist` and you will see mapping for 'nonexist' object. Future mapping... To achieve mappings for each object of your image, you need to find all objects by rbd_header and iterate over this list. k _______________________________________________ Dev mailing list -- dev@xxxxxxx To unsubscribe send an email to dev-leave@xxxxxxx
