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Leigh Brown
70d46b51e2
Add a manual page for xenwatchdogd. Signed-off-by: Leigh Brown <leigh@solinno.co.uk> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
56 lines
1.4 KiB
INI
56 lines
1.4 KiB
INI
=head1 NAME
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xenwatchdogd - Xen hypercall based watchdog daemon
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=head1 SYNOPSIS
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B<xenwatchdogd> [ I<OPTIONS> ] <I<TIMEOUT>> [ <I<SLEEP>> ]
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=head1 DESCRIPTION
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B<xenwatchdogd> arms the Xen watchdog timer to I<TIMEOUT> every I<SLEEP>
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seconds. If the xenwatchdogd process dies or is delayed for more than
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I<TIMEOUT> seconds, then Xen will take the B<on_watchdog> action
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specified in the domain configuration (see xl.cfg(5)). If B<xenwatchdogd>
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is running in dom0, the whole system will reboot.
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=head1 OPTIONS
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=over 4
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=item B<-h>, B<--help>
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Display a help message.
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=item B<-F>, B<--foreground>
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Run in the foreground. The default behaviour is to daemonize.
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=item B<-x>, B<--safe-exit>
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Disable watchdog on orderly exit. The default behaviour is to arm the
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watchdog to 300 seconds to allow time for the domain to shutdown. See
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also the B<SIGNALS> section.
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=item B<timeout>
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The number of seconds to arm the Xen watchdog timer. This must be set to
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a minimum of two.
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=item B<sleep>
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The number of seconds to sleep in between calls to arm the Xen watchdog
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timer. This must be at least one second, and less than the I<timeout>
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value. If not specified, it defaults to half the I<timeout> value.
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=back
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=head1 SIGNALS
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B<SIGUSR1> Will cause the program to disarm the watchdog timer and exit,
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regardless of whether the B<--safe-exit> option was passed.
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=head1 AUTHOR
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Citrix Ltd and other contributors.
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