Buffalo TeraStation Live HS-DH-TGL/R5 User Manual page 73

Advanced Settings
Maintenance (Initialization)
Initialization is a reset procedure that restores
all settings back to the default, out of box,
configuration. All configuration, users, groups,
and backup jobs are lost, but actual data and
shares on the hard are NOT lost. If you want
all data to be erased, reformat the drive.
Specify whether the TeraStation shall keep its
administrator password after a initialization
or whether the password should be reset to
the default password (default password is
password). Press the Apply button once you
make the selection.
Press the Restore button to begin the initialization process; this will restore all settings to factory
defaults but will NOT erase the data on the hard drives.