tvheadend/docs/html/config_timeshift.html

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 <img src="docresources/configtimeshifttab.png">
 
 <p>
 This tab is used to configure timeshift properties.

 <p>
 Configuration options:
 <dl>
  <dt>Enabled
  <dd>Turn on and off timeshift.

  <dt>On-Demand
  <dd>Turn this on to start timeshift buffer on pause. In this mode
      you cannot rewind the buffer (it always begins on the currently playing
      frame).

      Without this option there will be a permanent, circular, buffer up to
      the limits defined below.

  <dt>Storage Path:
  <dd>Where the timeshift data will be stored. If nothing is specified this
      will default to CONF_DIR/timeshift/buffer

  <dt>Max. Period (mins):
  <dd>Specify the maximum time period that will be buffered for any given
      (client) subscription.

  <dt>Unlimited:
  <dd>If checked, this allows the timeshift buffer to grow unbounded until
      your storage media runs out of space (WARNING: this could be dangerous!).

  <dt>Max. Size (MegaBytes)
  <dd>Specifies the maximum combined size of all timeshift buffers. If you
      specify an unlimited period its highly recommended you specifying a value
      here.

  <dt>Unlimited:
  <dd>If checked, this allows the combined size of all timeshift buffers to
      potentially grow unbounded until your storage media runs out of space
      (WARNING: this could be dangerous!).

 </dl>
 Changes to any of these settings must be confirmed by pressing the
 'Save configuration' button before taking effect.

 NOTE: These settings represent server side maximums, however the clients can
 request smaller buffers or even not to create a buffer at all (for example
 should they not support timeshifting).
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