这是我的 Centos 7。我将其从一个位置移动到另一个位置，本地支持人员添加了正确的电缆以将 SAN 磁盘呈现给服务器，但我在多路径中没有看到任何输出。服务器已重新启动并且多路径服务正在运行，但抱怨 sdc
[root@centos-app23 ~]# lsblk --fs
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
└─sda1 ext3 7a8015e1-e147-40ae-b5ac-da2134c6788a /boot
sdb
├─sdb1 ext3 7664e2be-eafe-40dd-9f67-afbdab685d12
└─sdb2 LVM2_member uoanJQ-TF4J-uNOz-5Q4R-7qfV-ThHC-5WU6ok
sdc
├─sdc1 ext3 7664e2be-eafe-40dd-9f67-afbdab685d12
└─sdc2 LVM2_member uoanJQ-TF4J-uNOz-5Q4R-7qfV-ThHC-5WU6ok
├─centos-root xfs 4fd04bf3-1aab-45f8-b262-20eb3bc4cf78 /
├─centos-swap swap d6734505-00db-4093-a878-5078d2a3e90c [SWAP]
└─centos-home xfs 95de2ea1-ae13-4a6d-a978-a14aebd770b0 /home
[root@centos-app23 ~]#
[root@centos-app23 ~]# multipath -ll
[root@centos-app23 ~]#
[root@centos-app23 ~]# service multipathd status
Redirecting to /bin/systemctl status multipathd.service
● multipathd.service - Device-Mapper Multipath Device Controller
Loaded: loaded (/usr/lib/systemd/system/multipathd.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2023-08-06 05:25:25 AEST; 2h 42min ago
Process: 153879 ExecReload=/sbin/multipathd reconfigure (code=exited, status=0/SUCCESS)
Process: 152005 ExecStart=/sbin/multipathd (code=exited, status=0/SUCCESS)
Process: 152001 ExecStartPre=/sbin/multipath -A (code=exited, status=0/SUCCESS)
Process: 151997 ExecStartPre=/sbin/modprobe dm-multipath (code=exited, status=0/SUCCESS)
Main PID: 152008 (multipathd)
CGroup: /system.slice/multipathd.service
└─152008 /sbin/multipathd
Aug 06 05:33:59 centos-app23 multipathd[152008]: reconfigure (operator)
Aug 06 06:44:18 centos-app23 multipathd[152008]: reconfigure (operator)
Aug 06 06:44:18 centos-app23 multipathd[153879]: ok
Aug 06 06:44:18 centos-app23 systemd[1]: Reloaded Device-Mapper Multipath Device Controller.
Aug 06 07:23:50 centos-app23 multipathd[152008]: sdc: add path (uevent)
Aug 06 07:23:50 centos-app23 multipathd[152008]: mpathb: retry domap for addition of new path sdc
Aug 06 07:23:51 centos-app23 multipathd[152008]: mpathb: failed in domap for addition of new path sdc
Aug 06 07:23:51 centos-app23 multipathd[152008]: uevent trigger error
Aug 06 07:23:51 centos-app23 multipathd[152008]: dm-3: remove map (uevent)
Aug 06 07:23:51 centos-app23 multipathd[152008]: dm-3: remove map (uevent)
[root@centos-app23 ~]# multipathd -k
multipathd> show paths
hcil dev dev_t pri dm_st chk_st dev_st next_check
0:0:0:0 sda 8:0 1 undef ready running orphan
15:0:0:0 sdb 8:16 1 undef ready running orphan
16:0:0:0 sdc 8:32 1 undef ready running orphan
multipathd>
multipathd>
[root@centos-app23 ~]#
[root@centos-app23 ~]#
如果我将它与其他类似的服务器进行比较，我可以看到正确的多路径输出
[root@centos-app05 ~]# multipath -ll
mpatha (36000d310009899000000000000000056) dm-0 COMPELNT,Compellent Vol
size=1.0T features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='service-time 0' prio=1 status=active
|- 16:0:0:0 sdb 8:16 active ready running
`- 17:0:0:0 sdc 8:32 active ready running
[root@centos-app05 ~]# lsblk -f
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
└─sda1 ext3 0dd9a419-6752-473e-b49b-2138f6519827 /boot
sdb mpath_member
└─mpatha
├─mpatha1 ext3 8100912c-c4f5-488b-8d9e-2e6c93d5e37e
└─mpatha2 LVM2_member ckoWGr-3kEW-NQRb-Ma18-OkXz-uxrb-HxemwY
├─centos-root xfs 54b2cd4a-dc96-484a-a204-839b0c1ba58a /
├─centos-swap swap 894e6bbb-2c0d-43cf-93bf-a0d35bd5c97a [SWAP]
└─centos-home xfs 11f18806-30e4-4681-bac0-b15dd90cb3a1 /home
sdc mpath_member
└─mpatha
├─mpatha1 ext3 8100912c-c4f5-488b-8d9e-2e6c93d5e37e
└─mpatha2 LVM2_member ckoWGr-3kEW-NQRb-Ma18-OkXz-uxrb-HxemwY
├─centos-root xfs 54b2cd4a-dc96-484a-a204-839b0c1ba58a /
├─centos-swap swap 894e6bbb-2c0d-43cf-93bf-a0d35bd5c97a [SWAP]
└─centos-home xfs 11f18806-30e4-4681-bac0-b15dd90cb3a1 /home
[root@centos-app05 ~]#
请建议，如何修复多路径。谢谢
编辑-我能够解决它。据我记得，我在 /etc/lvm/lvm.conf 中设置了“obtain_device_list_from_udev = 0”和“use_lvmetad = 0”并重新启动了服务器，我能够看到/home。