1CMIRRORD(8)                 System Manager's Manual                CMIRRORD(8)
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NAME

6       cmirrord - cluster mirror log daemon
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SYNOPSIS

10       cmirrord
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DESCRIPTION

14       cmirrord is the daemon that tracks mirror log information in a cluster.
15       It is specific to device-mapper based mirrors (and  by  extension,  LVM
16       cluster mirrors).  Cluster mirrors are not possible without this daemon
17       running.
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19       This daemon relies on the cluster infrastructure provided by the  Clus‐
20       ter MANager (CMAN), which must be set up and running in order for cmir‐
21       rord to function.  (The cluster infrastructure  is  also  required  for
22       clvmd.)
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24       Output is logged via syslog.  The USR1 signal can be issued to cmirrord
25       to gather current status information for debugging purposes.
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27       Once started, cmirrord will run until it is shutdown  via  INT  signal.
28       If  there are still active cluster mirrors, however, the signal will be
29       ignored.  Active cluster mirrors should be shutdown before stopping the
30       cluster mirror log daemon.
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SEE ALSO

34       lvm(8) clvmd(8) cluster.conf(5)
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38Red Hat Inc            LVM TOOLS 2.02.84(2) (2011-02-09)           CMIRRORD(8)
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