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为何在 RHEL 中对 multipath 存储建 lvm 后看到'Found duplicate PV' 警告?

Solution Verified - Updated -

Issue

  • 使用 LVM 命令(例如 vgs,lvchange等)列出系统上存在的 VG 或者 LV 时,出现下述日志
Found duplicate PV GDjTZf7Y03GJHjteqOwrye2dcSCjdaUi: using /dev/dm-5 not /dev/sdd
Found duplicate PV GDjTZf7Y03GJHjteqOwrye2dcSCjdaUi: using /dev/emcpowerb not /dev/sde
Found duplicate PV GDjTZf7Y03GJHjteqOwrye2dcSCjdaUi: using /dev/sddlmab not /dev/sdf
  • 运行 LVM 命令时,为何出现"双重 PV"警告?
  • 如何清除运行 LVM 命令后出现的"双重 PV"日志?
  • 使用从存储上配置的 scsi SAN Lun,在基于 multipath 设备建立的 lvm 上创建了文件系统。为何 PV 的显示结果是 sd 设备而非 mpath 设备?

Environment

  • Red Hat Enterprise Linux (RHEL) 7
  • Red Hat Enterprise Linux (RHEL) 6
  • Red Hat Enterprise Linux (RHEL) 5
  • Red Hat Enterprise Linux (RHEL) 4
  • lvm2
  • Multiple paths to storage device(s)

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