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NetApp Knowledge Base

What are the types of reboots and their differences on E-Series controllers?

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Category:
e-series-systems
Specialty:
esg
Last Updated:

 

Applies to

  • E2600
  • E2700
  • E2800
  • E5400
  • E5500
  • E5600
  • E5700
  • EF280
  • EF540
  • EF550
  • EF560
  • EF570

Answer

Soft Reboot
  • Only reboots the processor and is the default reboot method
  • Runs through firmware and does not issue a Power On Self Test (POST)
  • Command example:

reboot

Hard Reboot
  • Resets the entire board
  • Bypasses normal reboot hooks in the code
  • Runs through firmware and does not issue a POST
  • Command example:

sysReboot

Hard Power on Event
  • Only occurs when power is interrupted (power loss, powering off the controller)
  • Field Programmable Gate Array (FPGA) registers are reset
  • E-Series Controllers determine if a hard power on event occurred by checking the FPGA registers during Start-of-Day (SOD)
  • Issues a POST

Additional Information

N/A