check_image_snaps: image has snapshots - not removing

admin

rbd删除卷时报错，反馈如下
# rbd rm pool_name/volume_name
2021-10-25 10:32:42.192 7f789c502c80 -1 librbd::image::PreRemoveRequest: 0x5610334fcc40 check_image_snaps: image has snapshots - not removing
# W  L$ y2 m* \$ l3 l6 DRemoving image: 0% complete...failed.
. D1 \: v% j! [7 O% t5 h# y/ S* |rbd: image has snapshots - these must be deleted with 'rbd snap purge' before the image can be removed.
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! x  \+ D: l7 l1 k$ A+ R& E[root@compute05 data]# rbd rm  images/39a2e9a9-2ce5-454a-bd66-47f15eeb11ea
) e; M: C! _( d( n) |7 L! b2 V2022-06-29 14:34:02.548 7fb15bf9db00 -1 librbd::image::PreRemoveRequest: 0x5607e27ae6f0 check_image_snaps: image has snapshots - not removing
Removing image: 0% complete...failed.
rbd: image has snapshots - these must be deleted with 'rbd snap purge' before the image can be removed.
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5 G+ d2 P4 l0 N" |1 l& i( q% ]- Q; \此时是因为有快照存在，所以无法删除。 使用snap list命令可以查看卷下快照，后snap rm删除即可。 若提示快照保护状态还需执行rbd unprotect进行解保护
# rbd snap list pool_name/volume_name
SNAPID NAME       SIZE  PROTECTED TIMESTAMP               
    10 tempkoswji 1 GiB yes       Tue Oct 19 11:16:07 2021
#  rbd snap rm pool_name/volume_name@tempkoswji
Removing snap: 100% complete...done.
5 Z! D# ]1 L0 M8 ^. H7 I" E6 _0 t6 {# rbd rm pool_name/volume_name
% w0 Q2 ]) [4 r- WRemoving image: 100% complete...done.
- J3 O8 N1 ?4 k1234567
+ Z) [3 l; ^( H4 g9 c注：还存在一种情况，快照删除失败
" @: }# t' N& B3 n1 E( e此时可能是快照做过克隆，需找到克隆出的卷，进行还原
$ P/ A. y! U' |% S5 F8 w; x# rbd flatten pool_name/kelong

1 K! g* |$ b% v2 ~" H9 P6 T* U还原之后对快照进行解保护，快照即可删除
' ^- Z$ \5 c9 j! r4 L( Z# rbd unprotect pool_name/volume_name@snap_name