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Doc: Improve the document for nodesuspend
Explicitly lists the possible values for "--target" option; Gets rid of the confused strings like "Suspend-to-RAM"; Emphasises the node *has to* be suspended in the time duration specified by "--duration". And rewords the entire document a bit according to the API's implementation and document.
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@ -297,11 +297,14 @@ If I<cell> is specified, this will prints specified cell statistics only.
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=item B<nodesuspend> [I<target>] [I<duration>]
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Puts the node (host machine) into a system-wide sleep state such as
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Suspend-to-RAM, Suspend-to-Disk or Hybrid-Suspend and sets up a
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Real-Time-Clock interrupt to fire (to wake up the node) after a time delay
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specified by the 'duration' parameter. The duration time should be
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at least 60 seconds.
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Puts the node (host machine) into a system-wide sleep state and schedule
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the node's Real-Time-Clock interrupt to resume the node after the time
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duration specified by I<duration> is out.
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I<target> specifies the state to which the host will be suspended to, it
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can be "mem" (suspend to RAM), "disk" (suspend to disk), or "hybrid"
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(suspend to both RAM and disk). I<duration> specifies the time duration
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in seconds for which the host has to be suspended, it should be at least
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60 seconds.
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=item B<node-memory-tune> [I<shm-pages-to-scan>] [I<shm-sleep-millisecs>]
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