HMC Tips I - HMC and Managed System

1. To enable ssh in a hmc :

# chhmc -c ssh -s enable
You can disable it by replacing the word 'enable' with 'disable'

2. To enable xntp in a hmc :

# chhmc -c xntp -s enable
You can disable it by replacing the word 'enable' with 'disable'

3. To add an entry in the syslog config file :

# chhmc -c syslog -s add -a IP_Addr ( or '-h host_name' )
You can remove an entry by replacing the word 'add' with 'remove'

4. To add an entry in the ntp config file :

# chhmc -c xntp -s add -a IP_Addr ( or 'h host_name' )
You can remove an entry by replacing the word 'add' with 'remove'

5. To configure the network as a startup device :

# chhmc -c netboot -s enable
You can disable it by replacing the word 'enable' with 'disable'

6. To permit IP addresses from utilizing HMC services :

# chhmc -s ssh ( or any_service) -s add -a IP_Addr
You can remove an entry by replacing the word 'add' with 'remove'

7. To add a DNC_server or domain_suffix :

chhmc -c network -s add [-ns DNS_Server] [-ds domain_suffix ]
You can remove an entry by replacing the word 'add' with 'remove'

8. To change network settings for a specific network interface :

# chhmc -c network -s modify -i interface_name
[-a IP_Addr] [-nm network_mask] [ --lparcomm on|off]

Note: Network settings for the s10 interface cannot be changed.

9. To change other network settings :

# chhmc -c network -s modify
[-h hostname] [-d network-domain-name]
[-g gateway]

10. To change the locale for the HMC :

# chhmc -c locale -s modify -l locale

11. To change the HMC date and time, time zone :

# chhmc -c date -s modify
[ --datetime ]
[ --clock {local | utc} ]
[ --timezone {time-zone | none} ]

12. To list the BIOS Level of the HMC :

# lshmc -b

13. To list the current locale :

# lshmc -l

14. To list all of the locales supported by HMC :

# lshmc -L

15. To list network settings :

# lshmc -n

16. To list remote access settings :

# lshmc -r

17. To list VPD information :

# lshmc -v

18. To list version information :

# lshmc -V

19. List IP Connections to SP's and Bulk Power Controllers :

# lssysconn -r all

20. To list all machines configured in a hmc

# lssyscfg -r sys

21. To power on a managed system :

# chsysstate -r sys -m MANAGED_SYSTEM -o on -f SYS_PROF_NAME

22. To power on a managed system in standby mode :

# chsysstate -r sys -m MANAGED_SYSTEM -o onstandby -f SYS_PROF_NAME

23. To power off a managed system :

# chsysstate -r sys -m MANAGED_SYSTEM -o off --immed

24. To restart a managed system :

# chsysstate -r sys -m MANAGED_SYSTEM -o off --immed --restart

25. To recover partition data for a managed system :

# chsysstate -r sys -m MANAGED_SYSTEM -o recover

26. To initiate service processor failover for a managed system :

# chsysstate -r sys -m MANAGED_SYSTEM -o spfailover

27. To validate or activate a system profile :

# chsysstate -r sysprof -m MANAGED_SYSTEM -n SYS_PROF_NAME --test


28. To change the password of a managed system :

# chsyspwd -t {access | admin | general} -m MANAGED_SYSTEM --passwd Current_Password --newpassword New_Password