bionic (8) cmirrord.8.gz

Provided by: clvm_2.02.176-4.1ubuntu3.18.04.3_amd64 bug

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)