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1.4. DM Multipath Components

표 1.1. “DM Multipath Components”. describes the components of DM Multipath.

표 1.1. DM Multipath Components

구성 요소	설명
dm_multipath kernel module	I/O를 재라우팅하고 경로 및 경로 그룹에 대해 장애 조치를 합니다.
mpathconf utility	Configures and enables device mapper multipathing.
multipath command	Lists and configures multipath devices. Normally started with /etc/rc.sysinit, it can also be started by a udev program whenever a block device is added.
multipathd daemon	Monitors paths; as paths fail and come back, it may initiate path group switches. Allows interactive changes to multipath devices. The daemon must be restarted following any changes to the /etc/multipath.conf file.
kpartx command	Creates device mapper devices for the partitions on a device. It is necessary to use this command for DOS-based partitions with DM Multipath. The kpartx command is provided in its own package, but the device-mapper-multipath package depends on it.