NAME

       cmirrord — cluster mirror log daemon

SYNOPSIS

       cmirrord [-f] [-h]

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(8).)

       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.

OPTIONS

       -f, --foreground
           Do not fork and log to the terminal.

       -h, --help
           Print usage.

SEE ALSO

       syslog(3), cluster.conf(5), signal(7), clvmd(8), lvm(8)