Below are the CMD to configure Manager Password on Aruba 2530, 2930 Switches.
HP-2530-48G-PoEP# configure HP-2530-48G-PoEP(config)# password manager New password for manager: ****** Re-enter the new password for manager: ****** DHCP-based image file download from a TFTP server is disabled when an operator or manager password is set. DHCP-based ACS URL setting for TR-69 is disabled when an operator or manager password is set. DHCP-based config file download from a TFTP server is disabled when an operator or manager password is set. The TFTP Server is disabled when an operator or manager password is set. HP-2530-48G-PoEP(config)#save