How To Reset Sysadmin Password In Data Domain [portable] «UPDATED • Version»

This procedure requires physical console access or an iDRAC/Serial-over-LAN connection. You cannot do this over SSH or HTTP (Data Domain System Manager) because you need access to the bootloader.

On very old DD OS versions (pre-5.5), the option might be named Single User Mode or Recovery Mode . The principle is the same—you need a root shell before the password database loads. how to reset sysadmin password in data domain