ceph的object檔案存放的位置的分析
檢視osd下面的檔案檢視看檔案存在哪裡了
#rbd info rbd/image1
rbd image 'image1':
size 200GiB in 51200 objects
order 22 (4MiB objects)
block_name_prefix: rbd_data.d89b9770aa0bc
format: 2
features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
flags:
create_timestamp: Fri Jan 4 10:09:38 2019
rbd\udata.d89b9770aa0bc.0000000000001768head_12C4BE0F1
rbd\udata.d89b9770aa0bc.000000000000457f
rbd\udata.d89b9770aa0bc.00000000000069a2head_55485E0F1
rbd\udata.d89b9770aa0bc.000000000000916bhead_378F3E0F1
rbd\udata.d89b9770aa0bc.0000000000000f9fhead_B81CBF0F1
rbd\udata.d89b9770aa0bc.0000000000000fb6head_DF670F0F1
rbd\udata.d89b9770aa0bc.0000000000001a5fhead_C7619F0F1
rbd\udata.d89b9770aa0bc.0000000000003379head_86835F0F1
rbd\udata.d89b9770aa0bc.000000000000342bhead_EED71F0F1
rbd\udata.d89b9770aa0bc.00000000000036c9
rbd\udata.d89b9770aa0bc.00000000000068edhead_0C669F0F1
rbd\udata.d89b9770aa0bc.0000000000006a78head_C94DEF0F1
rbd\udata.d89b9770aa0bc.0000000000007d5e__head_5D406F0F__1
#find . -name *udata.d89b9770aa0bc.000000000000287ehead_91DD70111
./current/1.11_head/DIR_1/DIR_1/DIR_0/rbd\udata.d89b9770aa0bc.000000000000287ehead_91DD70111
檔案的位置：
pool,pgid=1.11
rbd\udata.d89b9770aa0bc.000000000000287e__head_91DD7011__1
資料檔案五個部分的構成：
- rbd
- 偏移
- head
- hash
- pool id