Users Guide

Table 3. Interfaces and protocols to access iDRAC (continued)
Interface or Protocol Description
RACADM Use this command-line utility to perform iDRAC and server management. You can use RACADM
locally and remotely.
● Local RACADM command-line interface runs on the managed systems that have Server
Administrator installed. Local RACADM communicates with iDRAC through its in-band IPMI host
interface. Since it is installed on the local managed system, users are required to log in to the
operating system to run this utility. A user must have a full administrator privilege or be a root
user to use this utility.
● Remote RACADM is a client utility that runs on a management station. It uses the out-of-band
network interface to run RACADM commands on the managed system and uses the HTTPs
channel. The –r option runs the RACADM command over a network.
● Firmware RACADM is accessible by logging in to iDRAC using SSH or telnet. You can run the
firmware RACADM commands without specifying the iDRAC IP, user name, or password.
● You do not have to specify the iDRAC IP, user name, or password to run the firmware RACADM
commands. After you enter the RACADM prompt, you can directly run the commands without
the racadm prefix.
iDRAC RESTful API and
Redfish
The Redfish Scalable Platforms Management API is a standard defined by the Distributed
Management Task Force (DMTF). Redfish is a next-generation systems management interface
standard, which enables scalable, secure, and open server management. It is a new interface that
uses RESTful interface semantics to access data that is defined in model format to perform out-
of-band systems management. It is suitable for a wide range of servers ranging from stand-alone
servers to rack mount and bladed environments and for large scale cloud environments.
Redfish provides the following benefits over existing server management methods:
● Increased simplicity and usability
● High data security
● Programmable interface that can be easily scripted
● Follows widely-used standards
For more information, see the iDRAC Redfish API Guide available at www.dell.com/idracmanuals.
WSMan
The LC-Remote Service is based on the WSMan protocol to do one-to-many systems management
tasks. You must use WSMan client such as WinRM client (Windows) or the OpenWSMan client
(Linux) to use the LC-Remote Services functionality. You can also use Power Shell or Python to
script to the WSMan interface.
Web Services for Management (WSMan) is a Simple Object Access Protocol (SOAP)–based
protocol used for systems management. iDRAC uses WSMan to convey Distributed Management
Task Force (DMTF) Common Information Model (CIM)–based management information. The CIM
information defines the semantics and information types that can be modified in a managed system.
The data available through WSMan is provided by iDRAC instrumentation interface mapped to the
DMTF profiles and extension profiles.
For more information, see the following:
● Lifecycle Controller Remote Services Quick Start Guide available at www.dell.com/
idracmanuals .
● Lifecycle Controller page on Dell EMC knowledge base site — www.dell.com/support/article/
sln311809/
● MOFs and Profiles — http://downloads.dell.com/wsman.
● DMTF website — dmtf.org/standards/profiles
SSH Use SSH to run RACADM and SMCLP commands. It provides the same capabilities as the Telnet
console using an encrypted transport layer for higher security. The SSH service is enabled by default
on iDRAC. The SSH service can be disabled in iDRAC. iDRAC only supports SSH version 2 with the
RSA host key algorithm. A unique 1024-bit RSA host key is generated when you power-up iDRAC for
the first time.
Telnet Use Telnet to access iDRAC where you can run RACADM and SMCLP commands. For details about
RACADM, see iDRAC RACADM CLI Guide available at www.dell.com/idracmanuals. For details
about SMCLP, see Using SMCLP on page 298.
Overview 27