Mit dem Kommando hmc können die verfügbaren HMCs verwaltet werden. Es werden die Verwaltung von Benutzern auf den HMCs, sowie die Verwaltung von Rollen (Task- und Resource-Rollen) abgedeckt. Zusätzlich lassen sich eine Vielzahl von Informationen der HMCs anzeigen. Eine vollständige Liste der Funktionen erhält man durch Starten des Kommandos ohne Argumente:

$ hmc
USAGE:
   hmc [ ...]  [ ...] [ ...]
   hmc -L|-V

Recognized keywords:
   add - Register HMC(s) with LPAR tool
   addauthkeys - Add an authorized SSH key
   chhmcfs - Free space in HMC file systems
   chhmcusr - Change attributes of HMC user account
   chresourcerole - Change managed resource role
   chtaskrole - Change managed task role
   chsvcevent - Update serviceable event on HMC
   cmd - Execute command on HMC
   connections - Display state of ssh master connections
   disconnect - Exit a ssh master connection
   flrt - Show FLRT report
   history - Show state or configuration changes
   list - List names of specified HMC(s)
   lsauthkeys - List authorized SSH keys
   lshmcfs - List HMC file system information
   lshmcusr - Show HMC user accounts
   lslic - List LIC levels available in hard disk repository
   lslogon - Show logon informations for HMC
   lslparmigr - List partiton mobility capabilities
   lsnet - Display HMC network configuration
   lsresource - Show all managed resource objects on the specified HMC
   lsresourcerole - Show managed resource roles on the specified HMC
   lssvcevents - Displays console or serviceable events
   lssysconn - List all systems connected to the specified HMC
   lstaskrole - Show managed task roles on the specified HMC
   mkhmcusr - Create HMC user account
   mkresourcerole - Create managed resource role
   mktaskrole - Create managed task role
   passwd - Change password
   remove - Unregister HMC(s) from LPAR tool
   rescan - Rereads cached informations from HMC(s)
   rmauthkeys - Remove an authorized SSH key
   rmhmcusr - Remove HMC user account
   rmresourcerole - Remove managed resource role
   rmtaskrole - Remove managed task role
   show - Show specified HMC(s)
   shutdown - Shut down or reboot
   termtask - Terminate a task
   version - Shows the HMC software version
   help [{||usage}]
$