Troubleshooting - Symantec NetBackup 5220 Hardware Installation Manual

Troubleshooting

During troubleshooting, pay attention to the following:
If you need to perform power on operations and you need to touch power cables,
you must take off the ESD-preventive wrist strap to prevent possible electrocution.
 Do not plug or unplug cables during power on; otherwise, data loss
may occur.
 Before reconnecting the power supply, wait at least one minute.
 You must shut off all disk drives before turning off the power to the
system, to avoid disk damage or data loss.
Do not touch the connectors of power cables or communication cables. Otherwise,
you might receive an electrical shock.
Do not touch the device with bare hands in an electrostatic sensitive area. Take
ESD-preventive measures, such as wearing ESD-preventive gloves or an
ESD-preventive wrist strap to avoid personnel injuries or device damage caused by
electrostatic discharge.
 Do not carry out troubleshooting in stormy weather if lightening is
possible.
Ensure that the power cables are intact and effective grounding

measures are taken.
 Keep the troubleshooting area clean and dry.
Chapter 3 33
Safety
Power On work