Nicholas Lewis > Net-ILO > Net::ILO

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NAME ^

Net::ILO - Interface to HP Integrated Lights-Out

SYNOPSIS ^

    use Net::ILO;

    my $ilo = Net::ILO->new({
        address     => '192.168.128.10',
        username    => 'Administrator',
        password    => 'secret',
    });

    # returns 'on' or 'off'
    my $power_status = $ilo->power or die $ilo->error;

    $ilo->power('off');
    $ilo->power('reset');

    my $mac01  = $ilo->mac01;
    my $mac02  = $ilo->mac02;
    my $macilo = $ilo->macilo;

    # see METHODS for complete listing

DESCRIPTION ^

The Net::ILO module is an interface to a subset of Hewlett-Packards Integrated Lights-Out out-of-band management system. HP's API is XML-based and cumbersome to use; this module aims to simplify accessing the iLO from Perl while retaining as much functionality as possible.

Not every iLO function is implemented here, however most common ones are.

This module is based on the sixth edition of the "HP Integrated Lights-Out Management Processor Scripting and Command Line Resource Guide" and has been successfully tested with the following server types:

    DL360/G3
    DL360/G4
    DL360/G4p
    DL360/G5
    DL360/G6
    DL360/G7 ** see note below
    DL380/G3
    DL380/G4
    DL380/G5

It should work with other server models; feedback (either way) is much appreciated.

Note: iLO 3 support is in BETA, and still being tested.

INTERFACE QUIRKS ^

Wherever possible, I have mimicked HP's API to maintain consistency. However, certain names have been changed to reflect a more common usage, for example, what HP calls 'DNS_NAME' is referred to as 'hostname' by Net::ILO.

Boolean types are represented in the documentation as either 'Yes' or 'No'. When ILO returns a boolean response, it is shortened to 'Y' or 'N'. Either form is acceptable when passing a value to your server's iLO.

Power and UID statuses are an exception; their states can be either 'on' or 'off'.

METHODS ^

The interface is extensive and methods have been grouped by function for easier digestion.

GENERAL METHODS

new()
    my $ilo = Net::ILO->new({
        address     => '192.168.131.185',
        username    => 'Administrator',
        password    => 'secret',
    });

    # can also use a hash rather than hashref

    my $ilo = Net::ILO->new(
        address     => '192.168.131.185',
        username    => 'Administrator',
        password    => 'secret',
    );

Creates a new ILO object, but does not attempt a connection. Parameters are passed as an anonymous hash or hashref.

Required paramters:

None, however trying to call any method without setting at least the address, username and password will fail. You may however, set these later using their associated methods if you want.

Optional parameters:

  address - hostname or IP of remote machine's iLO
     port - default is 443, you may specify another port here
 username - username for logging in to iLO
 password - password for logging in to iLO
  version - version of iLO API to use, '1', '2' or '3'. versions 1 and 2 are
            the same and correspond to iLO and iLO 2 respectively, if version
            '3' is used the module will use the new iLO 3 interface. if not
            specified the version will be detected automatically (recommended)
    debug - debug level (default 0). Increasing this number (to a maximum of 3)
            displays more diagnostic information to the screen, such as the
            data sent to and received from iLO, the Perl data structure
            created from the XML received, etc.
address()
    # connect to a different machine
    $ilo->address('192.168.131.186');

    print $ilo->power;

Returns or sets the address of the remote machine to connect to.

Please note that a lot of the data gathered (power state excluded) is cached. Connecting to machine A, calling mac01(), then connecting to machine B and calling mac01() will return the same data. It is recommended that you instantiate a new object for each server you connect to.

port()
    # your company's machines use a non-standard SSL port
    $ilo->port(447);

Returns or sets the port to connect to the remote server on. Port 443 is assumed if not specified.

username()
    $ilo->username('jane_doe');

    # do some non-admin tasks
    # power-cycling machine requires elevated privileges

    $ilo->username('Administrator');
    $ilo->power('reset');

Returns or sets the username to use when logging in.

password()
    # try both passwords, we forgot which one was good
    $ilo->password('foobar');

    # all methods return false on failure
    if (!$ilo->power) {

        $ilo->password('barfoo');

    }

Returns or sets the password to use when logging in.

error()
    $ilo->address('127.0.0.1');

    my $power_status = $ilo->power or die $ilo->error;

    Unable to establish SSL connection with 127.0.0.1:443
    [IO::Socket::INET6 configuration failederror:00000000:lib(0):func(0):reason(0)] at /somescript.pl line 14.

Returns the last error reported, if any. All methods return false when an error is encountered, and $ilo->error is set to the error message reported by the remote machine. Note that on success, error() is not cleared, and so should not be used to determine whether an error occurred.

Every single method which interacts with the remote machine may throw an error, so it is very important that you check to ensure the command succeeded. Error checking has been omitted from most examples for brevity.

POWER MANAGEMENT

power()
    my $power_status = $ilo->power;

    if ($power_status eq 'off') {

        $ilo->power('on');

    }
    else {

        $ilo->power('reset');

    }

Calling this method without parameters will return the current power state of the machine, either 'on' or 'off'. Passing any of the following to this method will attempt to change the power state:

    on
    off
    reset
power_consumption()
    # something like 340
    print $ilo->power_consumption;

Returns the current power consumption in watts.

This method is only available when using iLO 2 and above. Calling it on an older machine will cause the following error to be returned:

Method not supported by this iLO version

NETWORKING

hostname
    # default is ILO0000000000 where 000... is your serial number
    my $machine_name = $ilo->hostname;

Returns the hostname of the remote machine. This is also the name shown when logging in to the iLO interface, in the SSL cert, etc.

For information on changing the hostname, see the network() method.

domain_name()
    # maybe ilo.somecompany.net
    my $domain_name = $ilo->domain_name;

Returns the DNS domain name of the remote machine.

For information on changing the domain name, see the network() method.

dhcp_enabled()
    # either 'Y' or 'N'
    print $ilo->dhcp_enabled;

Returns 'Y' if DHCP is enabled for the iLO networking, and 'N' if a static IP address is in use.

ip_address()
    # network dependent, something like 192.168.1.129
    print $ilo->ip_address;

Returns the IP address of the iLO processor. Note that the IP can NOT be changed using this method. For managing network settings, see network().

subnet_mask()
    # network dependent, something like 255.255.255.0
    print $ilo->subnet_mask;

Returns the subnet mask of the iLO processor.

gateway()
    # you guessed it, network dependent
    print $ilo->gateway;

Returns the default gateway in use for the iLO networking.

network()
    $ilo->network({
        name            => 'testbox01',
        domain_name     => 'mydomain.com',
        dhcp_enabled    => 'no',
        ip_address      => '192.168.128.10',
        subnet_mask     => '255.255.255.0',
        gateway         => '192.168.128.1',
    }) or die $ilo->error;

Allows you to modify the network configuration of the iLO processor. The following parameters are allowed, see individual methods above for more detail:

    name
    domain_name
    dhcp_enabled
    ip_address
    subnet_mask
    gateway

If any parameter is not specified, current values are used.

Setting dhcp_enabled to 'yes' causes all IP related settings to have no effect.

If the IP address is changed here, address() is updated with the new information.

Networking changes cause the iLO processor to reset, it should become available again within 30 seconds.

The rationale behind seperate methods for viewing and changing network settings is as follows:

Network configuration generally needs to be modified as a package, for example, changing both the IP address and default gateway. Without a separate method, calling the ip_address() method as a setter could cause you to lose connectivity.

SYSTEM INFORMATION

model()
    # ProLiant DL380 G5
    print $ilo->model;

Returns the model name of the machine.

serialID()
    # unique to your machine
    print $ilo->serialID;

Returns the serial number of the remote machine.

cpus()
    my $cpus = $ilo->cpus;

    print "Number of CPUs: ", scalar @$cpus, "\n\n";

    foreach my $cpu (@$cpus) {

        print "  CPU: ", $cpu->{name}, "\n";
        print "Speed: ", $cpu->{speed}, "\n";
        print "Cores: ", $cpu->{cores}, "\n";

    }

    # yields the following on a single CPU Xeon:
    #
    # Number of CPUs: 1
    #
    #   CPU: Proc 1
    # Speed: 2000 MHz
    # Cores: 4 of 4 cores; 4 threads

Returns arrayref containing information about each CPU. Included is the CPU name (eg. Proc 1, Proc 2, etc.), speed in MHz and number of cores.

ramslots()
    my $ramslots = $ilo->ramslots or die $ilo->error;

    print "DIMM slots: ", scalar @$ramslots, "\n\n";

    foreach my $slot (@$ramslots) {

        print " Slot: ", $slot->{location}, "\n";
        print " Size: ", $slot->{size},     "\n";
        print "Speed: ", $slot->{speed},    "\n" if defined $slot->{speed};

    }

    # yields the following on a DL360/G5 with 8 GB of RAM:
    #
    # DIMM slots: 8
    #
    # Slot: DIMM 1A
    # Size: 2048 MB
    # Speed: 667 MHz
    #
    # Slot: DIMM 2C
    # Size: 1024 MB
    # Speed: 667 MHz
    #
    # Slot: DIMM 3A
    # Size: 2048 MB
    # Speed: 667 MHz
    #
    # Slot: DIMM 4C
    # Size: 1024 MB
    # Speed: 667 MHz
    #
    # Slot: DIMM 5B
    # Size: 1024 MB
    # Speed: 667 MHz
    #
    # Slot: DIMM 6D
    # Size: not installed
    #
    # Slot: DIMM 7B
    # Size: 1024 MB
    # Speed: 667 MHz
    #
    # Slot: DIMM 8D
    # Size: not installed

Returns arrayref containing information about installed memory modules. Includes slot name, module size and module speed. Speed is undefined when slot is empty.

mac01()
    my $eth0_mac = $ilo->mac01;

Returns the mac address associated with the machine's primary NIC (aka eth0).

This method is not supported by pre-generation 4 hardware.

mac02()
    my $eth1_mac = $ilo->mac02;

Returns the mac address associated with the machine's secondary NIC (aka eth1).

This method is not supported by pre-generation 4 hardware.

mac03()
    my $eth2_mac = $ilo->mac03;

Returns the mac address associated with the machine's tertiary NIC, if installed. Note that mac addresses for add-on cards will not be available via this method.

mac04()
    my $eth3_mac = $ilo->mac04;

Returns the mac address associated with the machine's quaternary NIC, if installed. Note that mac addresses for add-on cards will not be available via this method.

macilo()
    my $ilo_mac = $ilo->macilo;

Returns the mac address associated with the machine's iLO interface.

This method is not supported by pre-generation 4 hardware.

biosdate()
    # format is 11/30/2006
    print $ilo->biosdate;

Returns the release date of the system's BIOS.

SERVER HEALTH

fans()
    my $fans = $ilo->fans;

    foreach my $fan (@$fans) {

        print "    Name: ", $fan->{name},     "\n";
        print "Location: ", $fan->{location}, "\n";
        print "   Speed: ", $fan->{speed},    "\n";
        print "    Unit: ", $fan->{unit},     "\n";
        print "  Status: ", $fan->{status},   "\n\n";

    }

    #     Name: Fan Block 1
    # Location: Power Supply
    #    Speed: 34
    #     Unit: Percentage
    #   Status: Ok
    #
    #     Name: Fan Block 2
    # Location: CPU 2
    #    Speed: 29
    #     Unit: Percentage
    #   Status: Ok
    #
    #     Name: Fan Block 3
    # Location: CPU 1
    #    Speed: 34
    #     Unit: Percentage
    #   Status: Ok

Returns arrayref containing the status of the fan block(s) installed in the system. 'status' will be 'Ok' or 'Failed'.

temperatures()
    my $temperatures = $ilo->temperatures;

    foreach my $sensor (@$temperatures) {

        print "    Name: ", $sensor->{name},     "\n";
        print "Location: ", $sensor->{location}, "\n";
        print "   Value: ", $sensor->{value},    "\n";
        print "    Unit: ", $sensor->{unit},     "\n";
        print " Caution: ", $sensor->{caution},  "\n";
        print "Critical: ", $sensor->{critical}, "\n";
        print "  Status: ", $sensor->{status},   "\n\n";

    }

    #     Name: Temp 1
    # Location: I/O Board
    #    Value: 49
    #     Unit: Celsius
    #  Caution: 80
    # Critical: 90
    #   Status: Ok
    #
    #     Name: Temp 2
    # Location: Ambient
    #    Value: 19
    #     Unit: Celsius
    #  Caution: 80
    # Critical: 90
    #   Status: Ok
    #
    #     Name: Temp 3
    # Location: CPU 1
    #    Value: 32
    #     Unit: Celsius
    #  Caution: 80
    # Critical: 90
    #   Status: Ok
    #
    #     Name: Temp 4
    # Location: CPU 1
    #    Value: 32
    #     Unit: Celsius
    #  Caution: 80
    # Critical: 90
    #   Status: Ok
    #
    #     Name: Temp 5
    # Location: Power Supply
    #    Value: 28
    #     Unit: Celsius
    #  Caution: 80
    # Critical: 90
    #   Status: Ok

Returns arrayref containing the status of the temperature sensor(s) installed in the system. 'status' will be 'Failed' if the temperature exceeds the critical threshold.

power_supplies()
    my $power_supplies = $ilo->power_supplies;

    foreach my $power_supply (@$power_supplies) {

        print "  Name: ", $power_supply->{name},   "\n";
        print "Status: ", $power_supply->{status}, "\n\n";

    }

    #   Name: Power Supply 1
    # Status: Ok

Returns arrayref containing the status of the power supplies installed in the system. 'status' will be 'Ok' or 'Failed'.

ILO INFORMATION AND MANAGEMENT

reset()
    # iLO web interface is hung, try resetting it
    $ilo->reset;

Resets the iLO management processor.

license()
    # 25 characters, according to HP
    $ilo->license('1111122222333334444455555');

Activates iLO advanced pack licensing. An error will be returned if the key is not valid or if it is already in use.

fw_type()
    # either 'iLO', 'iLO2' or 'iLO3'
    print $ilo->fw_type;

Returns the type of iLO management processor in the remote machine. Possible values are 'iLO', 'iLO2' and 'iLO3', depending on how modern the server is.

fw_version()
    # something like 1.26
    print $ilo->fw_version;

Returns the version of iLO firmware currently running.

fw_date()
    # format is Nov 17 2006
    print $ilo->fw_date;

Returns the date the iLO firmware was released.

ssh_status()
    # either 'Y' or 'N'
    print $ilo->ssh_status;

    # disable SSH access to iLO
    $ilo->ssh_status('No');

Returns or modifies whether SSH access is enabled on the iLO. Gives 'Y' if SSH is enabled and 'N' if SSH is disabled.

ssh_port()
    if ($ilo->ssh_port == 22) {

        $ilo->ssh_port(12345);

    }

Returns or sets the port iLO will listen on for incoming SSH connections. This should be an integer between 0 and 65535.

Changing the SSH port causes the iLO processor to reset, it should become available again within about 30 seconds.

http_port()
    # default is 80
    print $ilo->http_port;

    $ilo->http_port(8000);

Returns or sets the port iLO's http service listens on. Valid port numbers are between 0 and 65535.

Changing the HTTP port causes the iLO processor to reset, it should become available again within about 30 seconds.

https_port()
    # default is 443
    print $ilo->https_port;

    $ilo->https_port(554);

Returns or sets the port iLO's https service listens on. Valid port numbers are between 0 and 65535.

Changing the HTTPS port causes the iLO processor to reset, it should become available again within about 30 seconds.

session_timeout()
    # default is 30
    print $ilo->session_timeout;

Returns the current session timeout in minutes. This applies to all sessions, eg. http, https, ssh, etc.

USER MANAGEMENT

add_user()
    # add a user with admin privileges
    $ilo->add_user({
        name     => 'John Doe',
        username => 'jdoe',
        password => 'secret',
        admin    => 'Yes',
    });

    # add a regular user with no privileges
    $ilo->add_user({
        name     => 'Jim Beam',
        username => 'jbeam',
        password => 'secret',
    });

    # add a regular user with full privileges (aside from managing users)
    #
    # for a detailed discussion of what each privilege provides, please see
    # the document 'HP Integrated Lights-Out Management Processor Scripting and
    # Command Line Resource Guide'
    #
    # if unspecified, default for each privilege is 'No'.

    $ilo->add_user({
        name     => 'Jack Daniels',
        username => 'jdaniels',
        password => 'secret',
        remote_console_privilege => 'Yes',
        reset_privilege          => 'Yes',
        virtual_media_privilege  => 'Yes',
        config_ilo_privilege     => 'Yes',
        view_logs_privilege      => 'Yes',
        clear_logs_privilege     => 'Yes',
        update_ilo_privilege     => 'Yes',
    })

Adds an iLO user. Admin users have full priveleges, including the ability to add and remove other users. Non-admin users have configurable privileges which default to disabled. The subset of permissions implemented is listed above. Users can log in to iLO via any interface, ie. HTTPS, SSH, etc. When adding a non-admin user, passing in the parameter admin => 'No' is also acceptable.

mod_user()
    # change current user's password
    # in this case username is optional

    $ilo->mod_user({
        password => 'supersecret',
    });

    # change another user's password
    # this requires administrator privileges

    $ilo->mod_user({
        username => 'guest',
        password => 'changem3!',
    });

Method for modifying existing user accounts. Currently this method is only able to change user's passwords; it cannot change permission levels.

Passwords may consist of up to 39 printable characters. If you exceed the maximum password length, an error to that effect will be returned.

If you update the current user's password the stored password used for logging in will be updated automatically.

del_user()
    # you're fired!
    $ilo->del_user('jbeam');

Removes an existing user from the iLO.

MISCELLANEOUS

uid()
    if ($ilo->uid eq 'on') {

        $ilo->uid('off');

    }

Get the status of or control the machine's UID light.

Called without parameters simply returns the current status, either 'on' or 'off'.

You may pass values 'on' or 'off' to this method however be careful not to set the uid light to on when it is currently on, and vice versa, as this could throw an error, depending on iLO firmware version.

An error will be returned if you pass an invalid state.

    $ilo->uid('blinking') or die $ilo->error;

    State blinking is not valid at /somescript.pl line 13.

DIAGNOSTICS ^

User login name was not found

General authentication error, eg. bad username or password when logging in.

Could also mean you attempted to change the settings (eg. password) for a user which doesn't exist

Method not supported by this iLO version

Either your machine / iLO firmware version is too old, or the method you called requires a more advanced license than you have.

State %s is not valid

An invalid UID state was passed to uid(). Valid states are 'on' and 'off'.

Unable to establish SSL connection with %s:%d [%s]

An error occurred while connecting to iLO. The message in brackets is propagated from IO::Socket::SSL, and is rarely useful.

Error transmitting command to server

A connection was established, but something went wrong while sending the command to the remote iLO. Try reconnecting, and ensure that your network settings are correct.

No response received from remote machine

A connection was established and a command successfully sent to the iLO, but no data was received. Again, ensure that your network settings are correct.

There could also be something wrong with the remote iLO management processor. Troubleshooting is beyond the scope of this document.

Error parsing response: %s

An error occurred while parsing the XML response from the iLO. The error message is propagated from XML::Simple, and could mean HP changed the iLO API.

DEPENDENCIES ^

    IO::Socket::SSL
    XML::Simple

AUTHOR ^

Nicholas Lewis, <nick.lewis at gmail.com>

BUGS ^

Please report any bugs or feature requests to bug-net-ilo at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Net-ILO. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT ^

You can find documentation for this module with the perldoc command.

    perldoc Net::ILO

You can also look for information at:

COPYRIGHT & LICENSE ^

Copyright 2011 Nicholas Lewis, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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