= Dolphin Trouble Shooting =
<<TableOfContents(2)>>
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== When Dolphin connection must be disabled? ==
   1. Before front-end computer is rebooted
      * by executing {{{reboot}}} command
      * by executing {{{shutdown -r}}} command
   2. Before front-end computer is shut down (See also '''How should we boot up''')
      * by executing {{{shutdown -h}}} command
      * by shutting down from the Web interface
      * by pressing a power button
'''*** An exception ***'''
   * It is better to avoid disabling, if Dolphin connection is already disabled.
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== How to check Dolphin connection is enabled or disabled? ==
   1. Open MEDM screen: [sitemap] -> [CDS] -> [Dolphin]
   2. Press button labelled '''''"dxadmin"'''''
   3. Enter password
   4. Press '''''"connect"'''''
   5. Press '''''"OK"'''''
'''*** How to see Dolphin manager interface ***'''
   * Green    = enabled
   * Red      = disabled
   * Gray out = disabled
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== How to disable Dolphin connection? ==
  1. Open MEDM screen: [sitemap] -> [CDS] -> [Dolphin]
  2. Press button labelled front-end computer name
  3. Enter password
  4. Wait until displaying the message as '''''"disabled"'''''
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== How should we boot up? ==
  1. Disconnect Dolphin cable from the front-end computer
  2. Boot up (press power button) the computer
  3. Connect Dolphin cable just after starting PXE boot process
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== How should we restore when the Dolphin glitch occurs? ==
'''Contact DGS folks first'''
  * Reboot the front-end computer,
    * if Dolphin connection is already disabled.
  * Restart the model,
    * if '''''FE''''' indicator turns red
  * Kill slave models, restart the IOP model, and start slave models,
    * if '''''DAC''''' indicator turns red on the IOP model.