Power On/Off - Symantec Shelf NetBackup 5220 Maintenance Manual

Power on/off

Before checking the device installation and cable connection, confirm that all
power supplies to the device are shut off to prevent personnel injury or device
damage caused by incorrect cable connections or loosened cables.
If you need to perform hot-line 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.
Safety information 19
Power on work