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易陆发现论坛»论坛 › 云计算开源区 › ceph分布式存储 › ERROR: unable to open OSD superblock on /var/lib/cep ...
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ERROR: unable to open OSD superblock on /var/lib/ceph/osd/ceph-2: (2) No such fi

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发表于 2022-8-25 17:02:10 | 显示全部楼层 |阅读模式
** ERROR: unable to open OSD superblock on /var/lib/ceph/osd/ceph-2: (2) No such file or directory
! c& C# `# U2 X* [& R. T$ P# u5 @0 Y7 b" v
2022-08-25 16:58:17.680 7f3029de9a80  0 set uid:gid to 167:167 (ceph:ceph)
4 ^  J6 R: V* l- x" ^* a! H# U2022-08-25 16:58:17.680 7f3029de9a80  0 ceph version 14.2.8-111.el7 (2e6029d57bc594eceba4751373da6505028c2650) nautilus (stable), process ceph-osd, pid 4848
- q1 T' Y1 i$ ~3 p" w5 Z* F, D2022-08-25 16:58:17.680 7f3029de9a80  0 pidfile_write: ignore empty --pid-file& D4 z+ w$ b. V# w$ |
2022-08-25 16:58:17.721 7f3029de9a80 -1 bluestore(/var/lib/ceph/osd/ceph-2/block) _read_bdev_label failed to open /var/lib/ceph/osd/ceph-2/block: (13) Permission denied* G' c7 h* K6 H6 Q% d: H
2022-08-25 16:58:17.721 7f3029de9a80 -1  ** ERROR: unable to open OSD superblock on /var/lib/ceph/osd/ceph-2: (2) No such file or directory" B' m% l) \/ Y& o& s3 d. b
2022-08-25 16:58:19.246 7f14524dba80  0 set uid:gid to 167:167 (ceph:ceph)
9 g8 e) d$ e' k7 {2022-08-25 16:58:19.246 7f14524dba80  0 ceph version 14.2.8-111.el7 (2e6029d57bc594eceba4751373da6505028c2650) nautilus (stable), process ceph-osd, pid 4868
9 p, i5 u  \' B% S( g2022-08-25 16:58:19.246 7f14524dba80  0 pidfile_write: ignore empty --pid-file
: Z' b6 ]8 E- n+ [5 Q" {2022-08-25 16:58:19.276 7f14524dba80 -1 bluestore(/var/lib/ceph/osd/ceph-2/block) _read_bdev_label failed to open /var/lib/ceph/osd/ceph-2/block: (13) Permission denied
4 ]6 c" K6 g; p8 `; B$ g# |0 Y0 Y2022-08-25 16:58:19.276 7f14524dba80 -1  ** ERROR: unable to open OSD superblock on /var/lib/ceph/osd/ceph-2: (2) No such file or directory$ @* S0 s. T8 h. Z2 t; H( `
# n  }; f  c9 [/ T  l" i6 k

7 u" _0 N, W6 G+ y
7 I& k; R: R# Z( X- F% I解决办法：
1 d# I) s  o7 y0 h. j, q6 `[root@ceph1 ~]# ceph-volume lvm activate --bluestore --all8 x/ E5 q" c5 o) v, o
--> Activating OSD ID 1 FSID 91e09831-defe-4a1c-9d54-a46ee2f00dbb
# ?; w( s$ i) s  @+ rRunning command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/osd/ceph-1
, O, W) R$ D' k8 Q/ GRunning command: /usr/bin/ceph-bluestore-tool --cluster=ceph prime-osd-dir --dev /dev/ceph-2c075439-91b9-49d2-8a83-2c1ac81db669/osd-block-91e09831-defe-4a1c-9d54-a46ee2f00dbb --path /var/lib/ceph/osd/ceph-1 --no-mon-config3 K6 z- p5 A+ }* Y; ^+ Y
Running command: /usr/bin/ln -snf /dev/ceph-2c075439-91b9-49d2-8a83-2c1ac81db669/osd-block-91e09831-defe-4a1c-9d54-a46ee2f00dbb /var/lib/ceph/osd/ceph-1/block/ v) M" O. n8 f7 U* [0 z9 U5 ]% H1 {
Running command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-1/block
$ Z: P) |* o9 dRunning command: /usr/bin/chown -R ceph:ceph /dev/dm-1
2 K7 Y( g) a# V. l  IRunning command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/osd/ceph-1
3 R& ?: b4 B0 aRunning command: /usr/bin/ln -snf /dev/vdc1 /var/lib/ceph/osd/ceph-1/block.wal: \; f" O; H+ n
Running command: /usr/bin/chown -R ceph:ceph /dev/vdc1
' X$ c- }& |4 e$ ?+ G' nRunning command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-1/block.wal
, `4 N$ \+ w1 P4 i& I. C5 m/ A! C( HRunning command: /usr/bin/chown -R ceph:ceph /dev/vdc1* s% N% g- u. ^" O  e, I- O, o9 n# f
Running command: /usr/bin/systemctl enable ceph-volume@lvm-1-91e09831-defe-4a1c-9d54-a46ee2f00dbb: b4 F. `! }+ y& c  }
Running command: /usr/bin/systemctl enable --runtime ceph-osd@1! m* p, U9 t$ p# x+ H' e
Running command: /usr/bin/systemctl start ceph-osd@1
" N( t0 N2 W& i# O9 x+ K* Z0 _--> ceph-volume lvm activate successful for osd ID: 1% r, |3 h" V$ r3 l3 N& @! p
--> Activating OSD ID 0 FSID c2f92a17-c127-4a3b-bb99-9006c7f8bbf5
! R7 x/ P- V/ q: ]6 s) z! hRunning command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/osd/ceph-0. t) i0 `6 T# n  B1 X/ {7 f% P
Running command: /usr/bin/ceph-bluestore-tool --cluster=ceph prime-osd-dir --dev /dev/ceph-8bfb62b9-db26-47b9-aa47-1f3ec09771d8/osd-block-c2f92a17-c127-4a3b-bb99-9006c7f8bbf5 --path /var/lib/ceph/osd/ceph-0 --no-mon-config
7 M2 W  h1 H4 `! z/ [! K& pRunning command: /usr/bin/ln -snf /dev/ceph-8bfb62b9-db26-47b9-aa47-1f3ec09771d8/osd-block-c2f92a17-c127-4a3b-bb99-9006c7f8bbf5 /var/lib/ceph/osd/ceph-0/block, D# L; I/ m: B: @# d
Running command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-0/block# N# s& n  M3 s- b4 y
Running command: /usr/bin/chown -R ceph:ceph /dev/dm-2
) b" c* X' x* J# O8 S6 g* s  S- gRunning command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/osd/ceph-0$ a: A3 a& W! H) Q( g
Running command: /usr/bin/ln -snf /dev/vdb1 /var/lib/ceph/osd/ceph-0/block.wal) o3 @$ x; ?; O8 F; A% L' {2 g
Running command: /usr/bin/chown -R ceph:ceph /dev/vdb1
+ T# @( N4 n  z# q& g5 ?' WRunning command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-0/block.wal
& Q0 }& @6 {9 _% L2 m+ mRunning command: /usr/bin/chown -R ceph:ceph /dev/vdb13 _& J5 I) d7 @$ Y4 W0 o
Running command: /usr/bin/systemctl enable ceph-volume@lvm-0-c2f92a17-c127-4a3b-bb99-9006c7f8bbf56 E) f6 A: I# N) l( G* J8 T7 y
Running command: /usr/bin/systemctl enable --runtime ceph-osd@0
7 R( d  B3 A9 ~* Q7 [  ^+ s& nRunning command: /usr/bin/systemctl start ceph-osd@0& s- [+ y; u, S* J
--> ceph-volume lvm activate successful for osd ID: 04 g9 x2 g9 D( ]$ n7 H2 n! O! a
[root@ceph1 ~]# ceph osd tree8 l2 w: ?+ G' ^! j7 o9 }  d
ID CLASS WEIGHT  TYPE NAME          STATUS REWEIGHT PRI-AFF % w3 u+ y: N) |4 r1 H
-3       6.00000 root hdd                                   ( }; o0 ~# Y/ a8 W" S
-4       2.00000     host hdd-ceph1                        
/ w, z8 t# A" n/ G3 c 0   hdd 1.00000         osd.0        down  1.00000 1.00000
4 |$ N6 g9 {" Z, @7 X8 i& } 1   hdd 1.00000         osd.1        down        0 1.00000
& C. Z) A! e% c( `-5       2.00000     host hdd-ceph2                         2 A  E" D* _4 U( m
2   hdd 1.00000         osd.2        down        0 1.00000
2 k6 j0 U5 o9 a9 j* s& I 3   hdd 1.00000         osd.3        down  1.00000 1.00000 , O% u0 s# p/ {8 y# z! [
-6       2.00000     host hdd-ceph3                        
+ }/ p$ X: a7 K( |& i$ B- x1 j 4   hdd 1.00000         osd.4        down  1.00000 1.00000 ! }" X! n9 [. \5 \, |
5   hdd 1.00000         osd.5          up  1.00000 1.00000 1 ?" b: w7 t% z
-1             0 root default                               3 q- |7 ]  b* Y8 t0 k9 X+ m
[root@ceph1 ~]# ceph osd tree
- ^  r) N; n0 q! {/ a4 ~& H+ SID CLASS WEIGHT  TYPE NAME          STATUS REWEIGHT PRI-AFF
1 d4 D! p$ _% m+ ^0 w# L% [-3       6.00000 root hdd                                   
3 J/ b8 ^' W6 {; T( g$ a& O-4       2.00000     host hdd-ceph1                         5 J( `& P+ d! S; b6 E) i% @
0   hdd 1.00000         osd.0        down  1.00000 1.00000
! }0 O2 G# W' w2 M( `9 m) t2 M 1   hdd 1.00000         osd.1        down        0 1.00000 ' K, Z5 ]9 T1 g2 R8 o. Z0 o
-5       2.00000     host hdd-ceph2                         ) f+ U; t/ n1 f9 s. D% _$ ?
2   hdd 1.00000         osd.2        down        0 1.00000 7 Y& H$ C! h+ C- D
3   hdd 1.00000         osd.3        down  1.00000 1.00000 * l% i( Z8 y' U# T1 j& S% P) Y2 ?1 b* g
-6       2.00000     host hdd-ceph3                        
- m, x( m- F- r 4   hdd 1.00000         osd.4        down  1.00000 1.00000
" ^0 L% V5 n1 H5 H! C5 T 5   hdd 1.00000         osd.5          up  1.00000 1.00000 % {6 h% a( q0 M. p, Y/ S
-1             0 root default                               - e" U4 O9 c# Z% p! ^
[root@ceph1 ~]# ceph osd tree
% }) Q- K: l6 cID CLASS WEIGHT  TYPE NAME          STATUS REWEIGHT PRI-AFF ! y; g6 P5 ?# s2 c$ I3 b2 _# Z
-3       6.00000 root hdd                                   
$ e  o8 e) e: W3 G4 f! x" r-4       2.00000     host hdd-ceph1                        
9 [5 ?5 a8 ~0 G9 Q4 n4 x 0   hdd 1.00000         osd.0          up  1.00000 1.00000
9 C0 u$ {( F6 \% o 1   hdd 1.00000         osd.1          up  1.00000 1.00000
0 y/ W+ e1 [1 F; I9 H3 C-5       2.00000     host hdd-ceph2                         2 }; c+ o4 q" G) z7 v$ h
2   hdd 1.00000         osd.2        down        0 1.00000
) ]) j! ], C! G9 O! ] 3   hdd 1.00000         osd.3        down  1.00000 1.00000 - [) d  M: f8 k, A8 z
-6       2.00000     host hdd-ceph3                         1 [4 Y( L7 j0 C3 ^
4   hdd 1.00000         osd.4        down  1.00000 1.00000 9 B: J0 ~7 j1 q6 Y
5   hdd 1.00000         osd.5          up  1.00000 1.00000
  p3 w. ~" J; u$ E% j( q-1             0 root default                               # o% O0 }, I6 H7 L* i4 c/ R( C& p
0 w. L* a8 e  U, Y" n1 u
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 楼主| 发表于 2022-8-25 17:16:57 | 显示全部楼层
问题: L' u6 X/ e1 o+ y$ ~
When redeploying an OSD, for example, after a hard drive replacement by using by using the "add-osd.yml" Ceph-Ansible playbook, the following error occurs in /var/log/messages on the OSD node:
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& p/ I' ]0 w- q# XRaw! O2 P9 V1 x3 }4 e+ V2 H9 B
"ERROR: unable to open OSD superblock on /var/lib/ceph/osd/ceph-<nn>: (2) No such file or directory"
. U( u) j1 ^" I! |, I5 s决议4 [% D+ X1 }+ O6 s! U" C4 J6 H5 t
To prevent this error occurring, list all the OSD mountpoints under /var/lib/ceph/ and identify the OSDs which are invalid.
) O6 {7 q1 m6 i3 U" ]' pThen, remove the invalid mountpoints.
/ v# t4 l2 r  }$ l, \For example, in the below output, OSD "ceph-03" is invalid and has been removed.
3 i/ d, t0 g8 a/ Z$ \
  O$ U6 R! V# O: b$ f) ^- G) nRaw
; g, b! C/ l7 q8 [: n# ls -lr /var/lib/ceph/osd/6 n$ J. L2 \3 ?. t
total 0
/ T, o' J; n- P2 t% b6 g1 Ldrwxr-xr-x. 3 ceph ceph 231 Aug  6 10:32 ceph-010 |4 Z& k$ [! c" M4 ~) i' C2 y
drwxr-xr-x. 3 ceph ceph 231 Aug  6 10:29 ceph-025 H5 _# |( ~& I- x. p+ J0 y
drwxr-xr-x. 2 root root   6 Feb 25  2017 ceph-03
5 W* i4 O4 S1 Ydrwxr-xr-x. 3 ceph ceph 231 Aug  6 10:26 ceph-043 d- G- B+ f5 W; n* t4 a5 p
drwxr-xr-x. 3 ceph ceph 231 Aug  6 10:23 ceph-05' |" q+ I/ U+ C4 J1 w) [$ \2 W
, a2 b: [# U( ]4 l
# rmdir /var/lib/ceph/osd/ceph-03$ z' g( V) N7 I; K( X2 R* z
根源( U; b. \& R$ o# F  O- V2 D/ E
This error occurs because of orphaned directories under /var/lib/ceph/osd/ . These sub-directories should be empty and only serve as mountpoints. Because the sub-directories exist, Ceph will assume an OSD exists and try to mount them. Consequently, it will fail because they cannot be mounted.6 O4 c9 M# H& W* T3 O; n" m
3 p2 ~4 L( B# Y. E/ v
诊断步骤. U7 D2 ]$ s0 k3 ~
The following error occurs in /var/log/messages on the OSD node:+ A1 F% W  m% {7 e
  r+ O1 [8 r3 i
Raw
8 m* O, r2 b2 M$ ^! N1 pERROR: unable to open OSD superblock on /var/lib/ceph/osd/ceph-<nn>: (2) No such file or directory
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 楼主| 发表于 2022-8-25 17:29:10 | 显示全部楼层
[root@ceph3 ~]# ceph-volume lvm activate --bluestore --all" X4 e$ V# L2 G
--> Activating OSD ID 5 FSID b71e3a1a-64ce-4cab-acc5-df852c8cf213( s9 a! f1 e7 E  u9 J
Running command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/osd/ceph-5, Y) B0 z/ W, y: f
Running command: /usr/bin/ceph-bluestore-tool --cluster=ceph prime-osd-dir --dev /dev/ceph-2d6d2a9e-f0ae-4d79-879e-22acef248b69/osd-block-b71e3a1a-64ce-4cab-acc5-df852c8cf213 --path /var/lib/ceph/osd/ceph-5 --no-mon-config
9 B/ Y* D7 U$ c0 g- r7 cRunning command: /usr/bin/ln -snf /dev/ceph-2d6d2a9e-f0ae-4d79-879e-22acef248b69/osd-block-b71e3a1a-64ce-4cab-acc5-df852c8cf213 /var/lib/ceph/osd/ceph-5/block6 h8 Q7 M7 w/ G: Y$ J
Running command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-5/block
3 c6 a+ r. [( c  E' ^% w0 }Running command: /usr/bin/chown -R ceph:ceph /dev/dm-2
. [/ X, U% i+ G3 S3 I6 d( p7 URunning command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/osd/ceph-5
1 n8 @: @4 a2 M$ Y# i, aRunning command: /usr/bin/ln -snf /dev/vdc1 /var/lib/ceph/osd/ceph-5/block.wal
* {2 D3 M9 ?9 G# U0 J- aRunning command: /usr/bin/chown -R ceph:ceph /dev/vdc19 T6 A3 [6 e$ Q: B/ y( y
Running command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-5/block.wal: Z7 o3 S, d! T% c3 ?) J
Running command: /usr/bin/chown -R ceph:ceph /dev/vdc1
2 T6 \+ n! T% ?" n+ a6 m1 eRunning command: /usr/bin/systemctl enable ceph-volume@lvm-5-b71e3a1a-64ce-4cab-acc5-df852c8cf213) `; i, K0 G/ W+ s1 L
Running command: /usr/bin/systemctl enable --runtime ceph-osd@5$ v/ D; S# U; I: o8 E# D5 ], m' B
Running command: /usr/bin/systemctl start ceph-osd@5
5 C" k; U3 p0 A6 `, R--> ceph-volume lvm activate successful for osd ID: 5
, K) q, J9 h" ]' G1 \4 U--> Activating OSD ID 4 FSID 01cbcdc2-6d43-49b0-80ab-3c4af5ee48c2
0 f- q6 r9 k, JRunning command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/osd/ceph-4
/ S& s- ~* K! z0 w9 CRunning command: /usr/bin/ceph-bluestore-tool --cluster=ceph prime-osd-dir --dev /dev/ceph-40e73c9a-a332-48d7-8f23-091e404b4829/osd-block-01cbcdc2-6d43-49b0-80ab-3c4af5ee48c2 --path /var/lib/ceph/osd/ceph-4 --no-mon-config' V8 G; [5 n9 ]; S4 }- O
Running command: /usr/bin/ln -snf /dev/ceph-40e73c9a-a332-48d7-8f23-091e404b4829/osd-block-01cbcdc2-6d43-49b0-80ab-3c4af5ee48c2 /var/lib/ceph/osd/ceph-4/block6 X8 V8 X& B5 P; A' G
Running command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-4/block9 ]) p3 ^$ m& u9 K5 A# R
Running command: /usr/bin/chown -R ceph:ceph /dev/dm-1; {2 x. Y$ ^8 p+ E2 `: o
Running command: /usr/bin/chown -R ceph:ceph /var/lib/ceph/osd/ceph-45 o; B; U6 `0 }' e. b  `; {
Running command: /usr/bin/ln -snf /dev/vdb1 /var/lib/ceph/osd/ceph-4/block.wal) M4 f) \' w. O2 O) i1 P
Running command: /usr/bin/chown -R ceph:ceph /dev/vdb16 D1 r5 I% v: {; K7 M
Running command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-4/block.wal
+ P4 @: T' F5 ~3 v9 Q6 MRunning command: /usr/bin/chown -R ceph:ceph /dev/vdb1
% X! ?# E/ K/ C6 V6 nRunning command: /usr/bin/systemctl enable ceph-volume@lvm-4-01cbcdc2-6d43-49b0-80ab-3c4af5ee48c2
' b- [; _! U( A" |- Q" C( wRunning command: /usr/bin/systemctl enable --runtime ceph-osd@49 ~3 q8 L5 a/ G" X8 Y0 A! S  C- M
Running command: /usr/bin/systemctl start ceph-osd@4
. o. O! O$ f: q8 A8 w* ?+ |--> ceph-volume lvm activate successful for osd ID: 49 o) S" K4 t0 h8 v9 s, Y; }
[root@ceph3 ~]# ceph osd tree
6 l& k* Y+ H5 z. r3 b/ o6 y, {0 PID CLASS WEIGHT  TYPE NAME          STATUS REWEIGHT PRI-AFF ' E# e5 i- i( `! a& P. z; P
-3       6.00000 root hdd                                   : i$ Q' d0 n, b! Q1 U& b
-4       2.00000     host hdd-ceph1                         ( [3 K6 g# I. T9 [5 o
0   hdd 1.00000         osd.0          up  1.00000 1.00000
# q: |) a' r8 i( `% A 1   hdd 1.00000         osd.1          up  1.00000 1.00000 5 P! b7 O; k, ~+ g) A# c6 k+ @# l7 m- r
-5       2.00000     host hdd-ceph2                        
4 h: n9 C7 L' b& R& T 2   hdd 1.00000         osd.2          up  1.00000 1.00000 ! I8 @& r/ [4 d8 M
3   hdd 1.00000         osd.3          up  1.00000 1.00000
3 {5 a7 O% d" x' h. n8 ^-6       2.00000     host hdd-ceph3                         9 I' H' q( Y3 h. S' h" h! P
4   hdd 1.00000         osd.4        down  1.00000 1.00000 5 v3 P$ b6 E9 n4 k
5   hdd 1.00000         osd.5        down  1.00000 1.00000 : j. l( V# W: j) E
-1             0 root default                              
2 r$ F# u+ a% p" g[root@ceph3 ~]# ceph osd tree * S2 @. ?2 n4 l$ C! H9 z/ k2 S# t
ID CLASS WEIGHT  TYPE NAME          STATUS REWEIGHT PRI-AFF
0 r* R( L' Z0 k4 @2 J" s/ m-3       6.00000 root hdd                                     k8 V% P* S: Z9 n+ Z, G/ |* R
-4       2.00000     host hdd-ceph1                         % H! R3 f; F4 K/ C4 E9 A8 V
0   hdd 1.00000         osd.0          up  1.00000 1.00000 7 P0 J! T+ n5 O) D# D+ v
1   hdd 1.00000         osd.1          up  1.00000 1.00000 5 l. |# t3 J: P' E; h  P
-5       2.00000     host hdd-ceph2                         5 p4 E1 R; b; x
2   hdd 1.00000         osd.2          up  1.00000 1.00000 ! c: d% E6 j" r. K( G
3   hdd 1.00000         osd.3          up  1.00000 1.00000 - I" \$ ^3 y& Z# O2 X6 d
-6       2.00000     host hdd-ceph3                        
5 U! t- N' D6 b9 Q* y+ N 4   hdd 1.00000         osd.4        down  1.00000 1.00000 # n) J; n+ `2 A; j$ G
5   hdd 1.00000         osd.5        down  1.00000 1.00000
: R3 ]: M4 l6 M" Y8 T! ~& j2 Q-1             0 root default                               ) k# N7 L/ q0 ~* u- L; Q9 x
[root@ceph3 ~]# ceph osd tree   H7 T4 e  F' p7 ]# j. h; a
ID CLASS WEIGHT  TYPE NAME          STATUS REWEIGHT PRI-AFF
7 j. R) T3 _! [/ R! C-3       6.00000 root hdd                                   
! P; @: ]. v+ W$ k-4       2.00000     host hdd-ceph1                         # X9 M& f/ K. E. B% \4 _' {2 a/ U: H
0   hdd 1.00000         osd.0          up  1.00000 1.00000
* c& j+ F" q0 _5 m; m! W. n( v 1   hdd 1.00000         osd.1          up  1.00000 1.00000
7 @( }+ Z4 I( Q+ d9 W; y4 r-5       2.00000     host hdd-ceph2                         % @( i- ~% g: U7 q
2   hdd 1.00000         osd.2          up  1.00000 1.00000 & N9 T8 R" W& n* x8 r( L8 J
3   hdd 1.00000         osd.3          up  1.00000 1.00000
% I: _$ n1 a: p2 U8 l7 q0 q-6       2.00000     host hdd-ceph3                        
$ Z* c; z4 E& `+ o) B 4   hdd 1.00000         osd.4          up  1.00000 1.00000 ! B0 E& p- |+ U, d* h3 `
5   hdd 1.00000         osd.5          up  1.00000 1.00000
: H4 i* A4 s' X1 R8 q-1             0 root default                              
! M6 u/ O  B: {. M) n6 P[root@ceph3 ~]#
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