26
iRMC
S2/S3
IPMI - technical background
IPMI and “in band” and “out of band” management
In the field of system management, a distinction is made between “in-band” and
“out-of-band” management:
–
The term “in-band” management is used when the operating system is
running on the managed server.
–
The term “out-of-band” management is used when the operating system is
not running on the managed server, for instance if the hardware is faulty.
As different interfaces are available in an environment with IPMI compatible
systems, you can manage IPMI compatible systems either “in band” or “out of
band”.
IPMI-over-LAN
“IPMI-over-LAN” is the current name for the specification of the LAN interface in
the IPMI standard. This specification stipulates how IPMI messages can be sent
to or from the BMC of a managed system - encapsulated in RMCP (Remote
Management Control Protocol) data packets. These RMCP data packets are
transferred via an Ethernet LAN connection using the UDP (User Datagram
Protocol) under IPv4 (Internet Protocol Version 4).
The RMCP protocol has been specified to support the management of system
statuses in which the operating system is not running. The RMCP is a simple
inquiry/response protocol.
The interface for such a connection is provided on an onboard LAN controller
assigned to the BMC.
I
The interface can only be provided by an on-board LAN controller, not by
an inserted LAN card.
Содержание Remote Management
Страница 36: ...36 iRMC S2 S3 Notational conventions ...
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Страница 134: ...134 iRMC S2 S3 Providing remote storage via a Remote Storage server ...
Страница 173: ...iRMC S2 S3 173 iRMC S2 S3 Information firmware and certificates Figure 88 Certificate Upload page ...
Страница 303: ...iRMC S2 S3 303 Console Redirection Redirecting the console Figure 183 Advanced Video Redirection page ...
Страница 320: ...320 iRMC S2 S3 Operating iRMC S2 S3 via Telnet SSH Remote Manager ...
Страница 346: ...346 iRMC S2 S3 Command Line Protocol CLP Table 18 Hierarchy of the CLP commands ...