rhel7.6配置multipath

admin

[root@localhost ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.6 (Maipo)

[root@localhost ~]# yum install -y device-mapper device-mapper-multipath


[root@localhost ~]# rpm -qa | grep mapper
device-mapper-multipath-libs-0.4.9-123.el7.x86_64
device-mapper-event-libs-1.02.149-8.el7.x86_64
device-mapper-persistent-data-0.7.3-3.el7.x86_64
device-mapper-libs-1.02.149-8.el7.x86_64
device-mapper-event-1.02.149-8.el7.x86_64
device-mapper-multipath-0.4.9-123.el7.x86_64
device-mapper-1.02.149-8.el7.x86_64

[root@localhost ~]# mpathconf --enbale

1. [root@localhost ~]# cat /etc/multipath.conf
   
2. blacklist {
   
3. 
   
4. devnode "^sda"
   
5. 
   
6. }
   
7. 
   
8. defaults {
   
9. 
   
10. user_friendly_names yes
    
11. 
    
12. path_grouping_policy multibus
    
13. 
    
14. failback immediate
    
15. 
    
16. no_path_retry fail
    
17. 
    
18. }

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[root@localhost ~]# service multipathd status

1. Redirecting to /bin/systemctl status multipathd.service
   
2. ● multipathd.service - Device-Mapper Multipath Device Controller
   
3.    Loaded: loaded (/usr/lib/systemd/system/multipathd.service; enabled; vendor preset: enabled)
   
4.    Active: active (running) since 四 2020-07-09 20:46:17 CST; 47min ago
   
5.   Process: 107103 ExecStart=/sbin/multipathd (code=exited, status=0/SUCCESS)
   
6.   Process: 107100 ExecStartPre=/sbin/multipath -A (code=exited, status=0/SUCCESS)
   
7.   Process: 107096 ExecStartPre=/sbin/modprobe dm-multipath (code=exited, status=0/SUCCESS)
   
8. Main PID: 107106 (multipathd)
   
9.    CGroup: /system.slice/multipathd.service
   
10.            └─107106 /sbin/multipathd
    
11. 
    
12. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpathk: event checker started
    
13. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpathl: event checker started
    
14. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpathm: event checker started
    
15. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpathn: event checker started
    
16. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpatho: event checker started
    
17. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpathp: event checker started
    
18. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpathq: event checker started
    
19. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpathr: event checker started
    
20. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: mpaths: event checker started
    
21. 7月 09 20:46:17 localhost.localdomain multipathd[107106]: path checkers start up

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[root@localhost ~]# echo "- - -" > /sys/class/scsi_host/host0/scan


[root@localhost ~]# multipath -ll

1. 
   
2. mpathr (364467471006c366f06c588cd00000029) dm-21 HUAWEI  ,XSG1            
   
3. size=500G features='0' hwhandler='0' wp=rw
   
4. |-+- policy='service-time 0' prio=50 status=active
   
5. | |- 0:0:3:8   sddy 128:0   active ready running
   
6. | |- 17:0:3:8  sdeb 128:48  active ready running
   
7. | `- 18:0:2:8  sdbn 68:16   active ready running
   
8. `-+- policy='service-time 0' prio=10 status=enabled
   
9.   |- 0:0:0:8   sdcp 69:208  active ready running
   
10.   |- 16:0:0:8  sdj  8:144   active ready running
    
11.   `- 17:0:0:8  sdcm 69:160  active ready running
    
12. mpathe (364467471006c366f06c5ddaa0000002e) dm-8 HUAWEI  ,XSG1            
    
13. size=1.0T features='0' hwhandler='0' wp=rw
    
14. |-+- policy='service-time 0' prio=50 status=active
    
15. | |- 0:0:0:13  sdcy 70:96   active ready running
    
16. | |- 16:0:0:13 sdo  8:224   active ready running
    
17. | `- 17:0:0:13 sdcx 70:80   active ready running
    
18. `-+- policy='service-time 0' prio=10 status=enabled
    
19.   |- 0:0:3:13  sdei 128:160 active ready running
    
20.   |- 17:0:3:13 sdel 128:208 active ready running
    
21.   `- 18:0:2:13 sdbs 68:96   active ready running
    
22. mpathq (364467471006c366f06c588a400000028) dm-20 HUAWEI  ,XSG1            
    
23. size=500G features='0' hwhandler='0' wp=rw
    
24. |-+- policy='service-time 0' prio=50 status=active
    
25. | |- 0:0:0:7   sdcn 69:176  active ready running
    
26. | |- 16:0:0:7  sdi  8:128   active ready running
    
27. | `- 17:0:0:7  sdck 69:128  active ready running
    
28. `-+- policy='service-time 0' prio=10 status=enabled
    
29.   |- 0:0:3:7   sddx 71:240  active ready running
    
30.   |- 17:0:3:7  sddz 128:16  active ready running
    
31.   `- 18:0:2:7  sdbm 68:0    active ready running
    
32. mpathd (364467471006c366f06c589820000002d) dm-7 HUAWEI  ,XSG1            
    
33. size=500G features='0' hwhandler='0' wp=rw
    
34. |-+- policy='service-time 0' prio=50 status=active
    
35. | |- 0:0:3:12  sdeg 128:128 active ready running
    
36. | |- 17:0:3:12 sdej 128:176 active ready running
    
37. | `- 18:0:2:12 sdbr 68:80   active ready running
    
38. `-+- policy='service-time 0' prio=10 status=enabled
    
39.   |- 0:0:0:12  sdcw 70:64   active ready running
    
40.   |- 16:0:0:12 sdn  8:208   active ready running
    
41.   `- 17:0:0:12 sdcv 70:48   active ready running
    
42. mpathp (364467471006c366f06c5887b00000027) dm-19 HUAWEI  ,XSG1            
    
43. size=500G features='0' hwhandler='0' wp=rw
    
44. |-+- policy='service-time 0' prio=50 status=active
    
45. | |- 0:0:3:6   sddv 71:208  active ready running
    
46. | |- 16:0:2:6  sdz  65:144  active ready running
    
47. | |- 17:0:3:6  sddw 71:224  active ready running
    
48. | `- 18:0:2:6  sdbl 67:240  active ready running
    
49. `-+- policy='service-time 0' prio=10 status=enabled
    
50.   |- 0:0:0:6   sdcl 69:144  active ready running
    
51.   |- 16:0:0:6  sdh  8:112   active ready running
    
52.   `- 17:0:0:6  sdci 69:96   active ready running
    
53. mpathc (364467471006c366f06c589570000002c) dm-6 HUAWEI  ,XSG1            
    
54. size=500G features='0' hwhandler='0' wp=rw
    
55. |-+- policy='service-time 0' prio=50 status=active
    
56. | |- 0:0:0:11  sdcu 70:32   active ready running
    
57. | |- 16:0:0:11 sdm  8:192   active ready running
    
58. | `- 17:0:0:11 sdct 70:16   active ready running
    
59. `-+- policy='service-time 0' prio=10 status=enabled
    
60.   |- 0:0:3:11  sdee 128:96  active ready running
    
61.   |- 17:0:3:11 sdeh 128:144 active ready running
    
62.   `- 18:0:2:11 sdbq 68:64   active ready running
    
63. mpatho (364467471006c366f06c5883c00000026) dm-18 HUAWEI  ,XSG1            
    
64. size=500G features='0' hwhandler='0' wp=rw
    
65. |-+- policy='service-time 0' prio=50 status=active
    
66. | |- 0:0:0:5   sdcj 69:112  active ready running
    
67. | |- 16:0:0:5  sdg  8:96    active ready running
    
68. | `- 17:0:0:5  sdch 69:80   active ready running
    
69. `-+- policy='service-time 0' prio=10 status=enabled
    
70.   |- 0:0:3:5   sddt 71:176  active ready running
    
71.   |- 16:0:2:5  sdy  65:128  active ready running
    
72.   |- 17:0:3:5  sddu 71:192  active ready running
    
73.   `- 18:0:2:5  sdbk 67:224  active ready running
    
74. mpathb (364467471006c366f06c589290000002b) dm-5 HUAWEI  ,XSG1            
    
75. size=500G features='0' hwhandler='0' wp=rw
    
76. |-+- policy='service-time 0' prio=50 status=active
    
77. | |- 0:0:3:10  sdec 128:64  active ready running
    
78. | |- 17:0:3:10 sdef 128:112 active ready running
    
79. | `- 18:0:2:10 sdbp 68:48   active ready running
    
80. `-+- policy='service-time 0' prio=10 status=enabled
    
81.   |- 0:0:0:10  sdcs 70:0    active ready running
    
82.   |- 16:0:0:10 sdl  8:176   active ready running
    
83.   `- 17:0:0:10 sdcr 69:240  active ready running
    
84. mpathn (364467471006c366f06c4ff0b00000025) dm-17 HUAWEI  ,XSG1            
    
85. size=50G features='0' hwhandler='0' wp=rw
    
86. |-+- policy='service-time 0' prio=50 status=active
    
87. | |- 0:0:3:4   sddr 71:144  active ready running
    
88. | |- 16:0:2:4  sdx  65:112  active ready running
    
89. | |- 17:0:3:4  sdds 71:160  active ready running
    
90. | `- 18:0:2:4  sdbj 67:208  active ready running
    
91. `-+- policy='service-time 0' prio=10 status=enabled
    
92.   |- 0:0:0:4   sdcg 69:64   active ready running
    
93.   |- 16:0:0:4  sdf  8:80    active ready running
    
94.   `- 17:0:0:4  sdcf 69:48   active ready running
    
95. mpatha (364467471006c366f06c4a99400000022) dm-4 HUAWEI  ,XSG1            
    
96. size=10G features='0' hwhandler='0' wp=rw
    
97. |-+- policy='service-time 0' prio=50 status=active
    
98. | |- 0:0:0:1   sdca 68:224  active ready running
    
99. | |- 16:0:0:1  sdc  8:32    active ready running
    
100. | `- 17:0:0:1  sdbz 68:208  active ready running
     
101. `-+- policy='service-time 0' prio=10 status=enabled
     
102.   |- 0:0:3:1   sddl 71:48   active ready running
     
103.   |- 16:0:2:1  sdu  65:64   active ready running
     
104.   |- 17:0:3:1  sddm 71:64   active ready running
     
105.   `- 18:0:2:1  sdbg 67:160  active ready running
     
106. mpathm (364467471006c366f06c4e1f700000024) dm-16 HUAWEI  ,XSG1            
     
107. size=10G features='0' hwhandler='0' wp=rw
     
108. |-+- policy='service-time 0' prio=50 status=active
     
109. | |- 0:0:0:3   sdce 69:32   active ready running
     
110. | |- 16:0:0:3  sde  8:64    active ready running
     
111. | `- 17:0:0:3  sdcd 69:16   active ready running
     
112. `-+- policy='service-time 0' prio=10 status=enabled
     
113.   |- 0:0:3:3   sddp 71:112  active ready running
     
114.   |- 16:0:2:3  sdw  65:96   active ready running
     
115.   |- 17:0:3:3  sddq 71:128  active ready running
     
116.   `- 18:0:2:3  sdbi 67:192  active ready running
     
117. mpathl (364467471006c366f06c4c93100000023) dm-15 HUAWEI  ,XSG1            
     
118. size=10G features='0' hwhandler='0' wp=rw
     
119. |-+- policy='service-time 0' prio=50 status=active
     
120. | |- 0:0:3:2   sddn 71:80   active ready running
     
121. | |- 16:0:2:2  sdv  65:80   active ready running
     
122. | |- 17:0:3:2  sddo 71:96   active ready running
     
123. | `- 18:0:2:2  sdbh 67:176  active ready running
     
124. `-+- policy='service-time 0' prio=10 status=enabled
     
125.   |- 0:0:0:2   sdcc 69:0    active ready running
     
126.   |- 16:0:0:2  sdd  8:48    active ready running
     
127.   `- 17:0:0:2  sdcb 68:240  active ready running
     
128. mpathk (364467471006c366f06c609a700000034) dm-14 HUAWEI  ,XSG1            
     
129. size=1.0T features='0' hwhandler='0' wp=rw
     
130. |-+- policy='service-time 0' prio=50 status=active
     
131. | |- 0:0:0:19  sddj 71:16   active ready running
     
132. | |- 16:0:0:19 sdt  65:48   active ready running
     
133. | |- 17:0:0:19 sddk 71:32   active ready running
     
134. | `- 18:0:0:19 sdbf 67:144  active ready running
     
135. `-+- policy='service-time 0' prio=10 status=enabled
     
136.   |- 0:0:3:19  sdev 129:112 active ready running
     
137.   |- 17:0:3:19 sdew 129:128 active ready running
     
138.   `- 18:0:2:19 sdby 68:192  active ready running
     
139. mpathj (364467471006c366f06c6097800000033) dm-13 HUAWEI  ,XSG1            
     
140. size=1.0T features='0' hwhandler='0' wp=rw
     
141. |-+- policy='service-time 0' prio=50 status=active
     
142. | |- 0:0:3:18  sdes 129:64  active ready running
     
143. | |- 17:0:3:18 sdeu 129:96  active ready running
     
144. | `- 18:0:2:18 sdbx 68:176  active ready running
     
145. `-+- policy='service-time 0' prio=10 status=enabled
     
146.   |- 0:0:0:18  sddh 70:240  active ready running
     
147.   |- 16:0:0:18 sds  65:32   active ready running
     
148.   |- 17:0:0:18 sddi 71:0    active ready running
     
149.   `- 18:0:0:18 sdbe 67:128  active ready running
     
150. mpathi (364467471006c366f06c6093400000032) dm-12 HUAWEI  ,XSG1            
     
151. size=1.0T features='0' hwhandler='0' wp=rw
     
152. |-+- policy='service-time 0' prio=50 status=active
     
153. | |- 0:0:0:17  sddg 70:224  active ready running
     
154. | |- 16:0:0:17 sdb  8:16    active ready running
     
155. | |- 17:0:0:17 sddf 70:208  active ready running
     
156. | `- 18:0:0:17 sdbd 67:112  active ready running
     
157. `-+- policy='service-time 0' prio=10 status=enabled
     
158.   |- 0:0:3:17  sder 129:48  active ready running
     
159.   |- 17:0:3:17 sdet 129:80  active ready running
     
160.   `- 18:0:2:17 sdbw 68:160  active ready running
     
161. mpathh (364467471006c366f06c608ff00000031) dm-11 HUAWEI  ,XSG1            
     
162. size=1.0T features='0' hwhandler='0' wp=rw
     
163. |-+- policy='service-time 0' prio=50 status=active
     
164. | |- 0:0:3:16  sdeo 129:0   active ready running
     
165. | |- 17:0:3:16 sdeq 129:32  active ready running
     
166. | `- 18:0:2:16 sdbv 68:144  active ready running
     
167. `-+- policy='service-time 0' prio=10 status=enabled
     
168.   |- 0:0:0:16  sdde 70:192  active ready running
     
169.   |- 16:0:0:16 sdr  65:16   active ready running
     
170.   |- 17:0:0:16 sddd 70:176  active ready running
     
171.   `- 18:0:0:16 sdbc 67:96   active ready running
     
172. mpathg (364467471006c366f06c5dede00000030) dm-10 HUAWEI  ,XSG1            
     
173. size=1.0T features='0' hwhandler='0' wp=rw
     
174. |-+- policy='service-time 0' prio=50 status=active
     
175. | |- 0:0:0:15  sddc 70:160  active ready running
     
176. | |- 16:0:0:15 sdq  65:0    active ready running
     
177. | |- 17:0:0:15 sddb 70:144  active ready running
     
178. | `- 18:0:0:15 sdbb 67:80   active ready running
     
179. `-+- policy='service-time 0' prio=10 status=enabled
     
180.   |- 0:0:3:15  sdem 128:224 active ready running
     
181.   |- 17:0:3:15 sdep 129:16  active ready running
     
182.   `- 18:0:2:15 sdbu 68:128  active ready running
     
183. mpaths (364467471006c366f06c588fe0000002a) dm-22 HUAWEI  ,XSG1            
     
184. size=500G features='0' hwhandler='0' wp=rw
     
185. |-+- policy='service-time 0' prio=50 status=active
     
186. | |- 0:0:0:9   sdcq 69:224  active ready running
     
187. | |- 16:0:0:9  sdk  8:160   active ready running
     
188. | `- 17:0:0:9  sdco 69:192  active ready running
     
189. `-+- policy='service-time 0' prio=10 status=enabled
     
190.   |- 0:0:3:9   sdea 128:32  active ready running
     
191.   |- 17:0:3:9  sded 128:80  active ready running
     
192.   `- 18:0:2:9  sdbo 68:32   active ready running
     
193. mpathf (364467471006c366f06c5de4a0000002f) dm-9 HUAWEI  ,XSG1            
     
194. size=1.0T features='0' hwhandler='0' wp=rw
     
195. |-+- policy='service-time 0' prio=50 status=active
     
196. | |- 0:0:3:14  sdek 128:192 active ready running
     
197. | |- 17:0:3:14 sden 128:240 active ready running
     
198. | `- 18:0:2:14 sdbt 68:112  active ready running
     
199. `-+- policy='service-time 0' prio=10 status=enabled
     
200.   |- 0:0:0:14  sdda 70:128  active ready running
     
201.   |- 16:0:0:14 sdp  8:240   active ready running
     
202.   |- 17:0:0:14 sdcz 70:112  active ready running
     
203.   `- 18:0:0:14 sdba 67:64   active ready running

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