E 系列：在 Linux 上发生路径故障后、 SystemD 尝试卸载文件系统

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适用于

Linux
Red Hat Enterprise Linux （ RHEL ） 7.0 、 7.1 或 7.2
SUSE 12.0 、 12.1
DMMP

问题

systemd 在路径失败后尝试卸载文件系统（其他路径仍处于联机状态）：

在以下示例中、systemd在路径恢复后不久尝试卸载 /iomnt-mpathcw （多路径设备 mpathwm ）、将当前路径设置为 3 ：

Jan 20 11:17:23 ICTM19Z1S02H3.ict.englab.netapp.com multipathd[1822]: mpathcw: sdgo - rdac checker reports path is up Jan 20 11:17:23 ICTM19Z1S02H3.ict.englab.netapp.com multipathd[1822]: 132:64: reinstated Jan 20 11:17:23 ICTM19Z1S02H3.ict.englab.netapp.com multipathd[1822]: mpathcw: remaining active paths: 3 Jan 20 11:17:23 ICTM19Z1S02H3.ict.englab.netapp.com multipathd[1822]: mpathcw: load table [0 37748736 multipath 4 pg_init_retries 50 queue_if_no_path retain_attached_hw_handler 1 rdac 3 2 service-time 0 1 1 68:32 1 service-time 0 1 1 132:64 1 service-time 0 2 1 134:64 1 70:32 1]

systemd尝试卸载：

Jan 20 11:17:26 ICTM19Z1S02H3.ict.englab.netapp.com systemd[1]: Trying to enqueue job iomnt\x2dmpathcw.mount/stop/replace Jan 20 11:17:26 ICTM19Z1S02H3.ict.englab.netapp.com systemd[1]: Installed new job remote-fs.target/stop as 1850 Jan 20 11:17:26 ICTM19Z1S02H3.ict.englab.netapp.com systemd[1]: Installed new job iomnt\x2dmpathcw.mount/stop as 1849 Jan 20 11:17:26 ICTM19Z1S02H3.ict.englab.netapp.com systemd[1]: Enqueued job iomnt\x2dmpathcw.mount/stop as 1849 Jan 20 11:17:26 ICTM19Z1S02H3.ict.englab.netapp.com systemd[1]: dev-disk-by\x2did-dm\x2duuid\x2dmpath\x2d360080e50002909c400007a255695b068.device changed plugged -> dead Jan 20 11:17:26 ICTM19Z1S02H3.ict.englab.netapp.com systemd[1]: dev-disk-by\x2did-dm\x2dname\x2dmpathcw.device changed plugged -> dead Jan 20 11:17:26 ICTM19Z1S02H3.ict.englab.netapp.com systemd[1]: dev-dm\x2d37.device changed plugged -> dead Jan 20 11:17:26 ICTM19Z1S02H3.ict.englab.netapp.com systemd[1]: sys-devices-virtual-block-dm\x2d37.device changed plugged -> dead