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1、创建存储池pool
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# Y+ O; z* S6 T i! }8 E[root@ceph-1 ceph]# ceph osd pool create block_data 60
: T) W6 e+ n: Z4 @[root@ceph-1 ceph]# ceph osd lspools
) E5 K7 \7 c* ~: Z- b; b5 e+ F p1 cephfs_data5 k$ S- C/ y' r6 }; {
2 cephfs_metadata1 D% H/ ]$ ?. o) I. j
3 block_data0 c( _6 o4 x! n& n m% ]1 F8 Y
2、创建RBD镜像，feature为layering
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[root@ceph-1 ceph]# rbd create myimage -s 10G --image-feature layering -p block_data; ^: _6 H6 s! B# Y, z7 n) n( Q
[root@ceph-1 ceph]# rbd ls -p block_data
! m U. ]2 Z; o& C8 @myimage' w6 k- m% ], ~. H. f$ I x$ U
[root@ceph-1 ceph]# rbd info myimage -p block_data9 r7 H" [0 i: n; c+ [; o
rbd image 'myimage':
+ c1 o: ^- A+ m; [' H9 d, \2 { size 10 GiB in 2560 objects
3 T8 w7 b0 b y1 D8 m* U order 22 (4 MiB objects)% d0 D8 p2 s; M+ s" L# J1 B" G. M
id: 108b6b8b4567
2 }0 p+ ^0 q7 ?: L% L block_name_prefix: rbd_data.108b6b8b4567
, f% a5 O% z: Y1 K8 ]6 q; _1 f format: 29 z5 n0 |7 r) v( Z
features: layering
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flags:% n' T2 a" \- V
create_timestamp: Thu Jun 2 21:33:40 2022/ e2 X: h. w6 a# K2 L" b
3、将myimage映射为块设备3 k- U) d# ^) K- t
) Q) [4 a8 y H1 W {- G[root@ceph-1 ceph]# rbd map myimage -p block_data
: s+ Z4 |" B7 g# D, H: x5 }/dev/rbd0+ ?: q' V! Q. Z, u
[root@ceph-1 ceph]# rbd showmapped
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0 block_data myimage - /dev/rbd0
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4 O( x) p1 K8 \8 S3 v[root@ceph-1 ceph]# lsblk
+ h1 D7 R k( K4 uNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT& Y: U. n- J$ }2 k
...4 ]: @, J# N, l! ^! J
rbd0 252:0 0 10G 0 disk' f0 N. Q. C* p$ J/ k
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4、格式化挂载使用
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# e6 W" q. R: j* ]6 O3 @7 K- j' H[root@ceph-1 ceph]# mkfs.xfs /dev/rbd0$ E, w# @. U! i) u; {% y9 x
[root@ceph-1 ceph]# mount /dev/rbd0 /mnt) \9 E8 i% E d3 Z9 ~5 u
[root@ceph-1 ceph]# df -h
* e0 X( s" H o! cFilesystem Size Used Avail Use% Mounted on
' }4 p. P2 y8 g6 m# W/dev/mapper/centos-root 50G 1.6G 49G 4% /
- q: G: l$ p* L9 s7 tdevtmpfs 899M 0 899M 0% /dev: b3 u# E; `+ D& H- l
tmpfs 911M 0 911M 0% /dev/shm
! O) N: i9 X1 K9 i" z1 v6 Stmpfs 911M 9.6M 902M 2% /run
& @6 `# o2 v+ u, q) I9 Ntmpfs 911M 0 911M 0% /sys/fs/cgroup* u ?* @- u9 K* s* A0 _- k
/dev/sda1 1014M 142M 873M 14% /boot
: d8 [. A, B! m5 {2 O6 h8 U/dev/mapper/centos-home 47G 33M 47G 1% /home/ }- l1 d& r$ H9 [ p
tmpfs 183M 0 183M 0% /run/user/0
: y0 U% N4 v; k5 P" L9 ztmpfs 911M 52K 911M 1% /var/lib/ceph/osd/ceph-0$ m& }6 T5 V; ^! a; k3 W
/dev/rbd0 10G 33M 10G 1% /mnt3 [) j7 U4 y. [; @6 Q3 g0 J9 [
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发表于 2022-6-17 16:25:21