CMIRRORD(8) System Manager's Manual CMIRRORD(8)
cmirrord — cluster mirror log daemon
cmirrord [-f|--foreground] [-h|--help]
cmirrord is the daemon that tracks mirror log information in a cluster. It is specific to device-mapper based mirrors (and by extension, LVM cluster mirrors). Cluster mirrors are not possible without this daemon running. This daemon relies on the cluster infrastructure provided by the corosync, which must be set up and running in order for cmirrord to function. Output is logged via syslog(3). The SIGUSR1 signal(7) can be issued to cmirrord to gather current status information for debugging purposes. Once started, cmirrord will run until it is shutdown via SIGINT signal. If there are still active cluster mirrors, however, the signal will be ignored. Active cluster mirrors should be shutdown before stopping the cluster mirror log daemon.
-f|--foreground Do not fork and log to the terminal. -h|--help Print usage.
lvmlockd(8), lvm(8), syslog(3), signal(7)
This page is part of the lvm2 (Logical Volume Manager 2) project. Information about the project can be found at ⟨http://www.sourceware.org/lvm2/⟩. If you have a bug report for this manual page, see ⟨https://github.com/lvmteam/lvm2/issues⟩. This page was obtained from the project's upstream Git repository ⟨git://sourceware.org/git/lvm2.git⟩ on 2023-06-23. (At that time, the date of the most recent commit that was found in the repository was 2023-06-20.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to firstname.lastname@example.org Red Hat Inc LVM TOOLS 2.03.15(2)-git (2021-10-20) CMIRRORD(8)
Pages that refer to this page: lvchange(8), lvconvert(8), lvcreate(8), lvdisplay(8), lvextend(8), lvm(8), lvmconfig(8), lvmdevices(8), lvmdiskscan(8), lvm-fullreport(8), lvm-lvpoll(8), lvreduce(8), lvremove(8), lvrename(8), lvresize(8), lvs(8), lvscan(8), pvchange(8), pvck(8), pvcreate(8), pvdisplay(8), pvmove(8), pvremove(8), pvresize(8), pvs(8), pvscan(8), vgcfgbackup(8), vgcfgrestore(8), vgchange(8), vgck(8), vgconvert(8), vgcreate(8), vgdisplay(8), vgexport(8), vgextend(8), vgimport(8), vgimportclone(8), vgimportdevices(8), vgmerge(8), vgmknodes(8), vgreduce(8), vgremove(8), vgrename(8), vgs(8), vgscan(8), vgsplit(8)