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
Cluster MANager (CMAN), which must be set up and running in order for
cmirrord to function. (The cluster infrastructure is also required
Output is logged via syslog(3). The SIGUSR1 signal(7) can be issued
to cmirrord to gather current status information for debugging
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.
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, send it to email@example.com. This page was obtained
from the project's upstream Git repository
⟨https://git.fedorahosted.org/git/lvm2.git⟩ on 2017-03-13. 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
Red Hat Inc LVM TOOLS 2.02.169(2)-git (2016-11-30) CMIRRORD(8)