Hi,
This shows one RBD image is treated as one object, and it's mapped to one PG.
"object" here means a RBD image.
# 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)
When show the info of this image, what's that "12800 objects" mean?
And what's that "order 23 (8 MiB objects)" mean?
What's "objects" here?
# rbd info vm/fcb09c9c-4cd9-44d8-a20b-8961c6eedf8e_disk
rbd image 'fcb09c9c-4cd9-44d8-a20b-8961c6eedf8e_disk':
size 100 GiB in 12800 objects
order 23 (8 MiB objects)
snapshot_count: 0
id: affa8fb94beb7e
block_name_prefix: rbd_data.affa8fb94beb7e
format: 2
Thanks!
Tony
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