centos man page for cmirrord

CMIRRORD(8)						      System Manager's Manual						       CMIRRORD(8)

NAME
       cmirrord - cluster mirror log daemon

SYNOPSIS
       cmirrord

DESCRIPTION
       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 for clvmd.)

       Output is logged via syslog.  The USR1 signal can be issued to cmirrord to gather current status information for debugging purposes.

       Once  started,  cmirrord will run until it is shutdown via INT 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.

SEE ALSO
       lvm(8) clvmd(8) cluster.conf(5)

Red Hat Inc					     LVM TOOLS 2.02.105(2)-RHEL7 (2014-03-26)					       CMIRRORD(8)