id="rzahqtermsandconcepts">Terminology

The following are terms related to Windows environment on iSeries™. For other iSeries terms and definitions, see the Information Center glossary.

Baseboard Management Controller (BMC): A basic low function service processor that is used to control xSeries® systems.
certificate: A standard format for combining an identity with a public key, signed by a Certificate Authority, which is valid from a specified start date/time until a specified end date/time. The identity in a certificate (also called the "Subject" of the certificate) says who or what the certificate was issued to. It can have a variety of syntaxes, but usually contains a distinguished name with attributes like "CN=common name, O=organization, OU=organizational unit". The public key is part of a private/public key pair, usually one created for use with the RSA public key cryptosystem. In contrast, the corresponding private key is not part of the certificate, and is not intended to be viewed.
certificate authority: A private key/certificate pair that can sign other certificates for authentication purposes, such as determining if a certificate is really from who it claims to be from. A certificate authority may be either owned by a third-party organization that verifies identity information and issues signed digital certificates, or it may be local and private. Once a certificate has been digitally signed, it cannot be altered without detection.
Challenge Handshake Authentication Protocol (CHAP): An authentication protocol that involves a secret known to both the authenticator and the party being authenticated. The secret is protected from eavesdropping during transmission.
connection security network server configuration: An i5/OS™ configuration object that is used to configure security-related values that control how the iSCSI HBA SCSI and virtual Ethernet LAN data is secured on the network. The corresponding i5/OS object type is *NWSCFG with a subtype of *CNNSEC. This object is also referred to using the shorter term connection security configuration.
enclosure ID: The identifying serial number, type and model of the enclosure containing the service processor. For a standard xSeries server, the service processor and the xSeries server share a common enclosure identifier. For an IBM® BladeCenter™ server, this identifies the management module which contains the IBM BladeCenter servers which it controls.
Enterprise Identity Mapping (EIM): A mechanism for mapping/associating a person or entity to the correct user identities in various registries across multiple operating systems. User Administration function integrates user enrollment with EIM, by providing support for automatic creating of EIM Windows source associations. Also, enrolled i5/OS user profiles allow Windows user profiles to be different than the i5/OS user profile if the administrator has manually defined the EIM Windows source association.
EIM identifier: Represents an actual person or entity in EIM. When you create an EIM identifier you associate it with the user identity for that person.
EIM identity mapping association: A single sign-on environment is made possible by associating the user identity to an EIM identifier in a registry. There are 3 types of associations, source, target, and administrative. User enrollment integrates with EIM when a target i5/OS association and a source Windows association are defined. The associations may be defined either automatically using the user profile attribute, EIMASSOC, or by using iSeries Navigator to manually define the associations. Target associations are primarily used to secure existing data. Source associations are primarily used for authentication purposes.
external network: Networks accessed by integrated servers through physical networking hardware. See also virtual networks.
host bus adapter (HBA): A host bus adapter (HBA) is an adapter card that plugs into the bus of the host system. For example, an Ethernet adapter or an iSCSI adapter.
hot spare: Hot spare provides the ability to have spare server hardware (such as an idle IXS) set aside as a backup for the server hardware that is used by one or more active servers. If one of the active servers has a server hardware failure, that server can quickly be switched from the failed server hardware to the spare server hardware and started again, drastically reducing the server downtime that is normally associated with a server hardware failure. For more information see Hot spare between server hardware.
IBM Director Server: An application that provides remote xSeries and IBM BladeCenter discovery, power control and management. IBM Director is available through Virtualization Engine™ Standard Edition.
IBM i5/OS Integrated Server Support: Extension to the i5/OS operating system installed on the iSeries which allows it to work with integrated Windows and Linux® servers. There is also a component of the product which runs on the integrated server.
Integrated Windows server: Also referred to as an integrated server, an instance of Windows 2000 Server or Windows Server 2003 running on an IXS, an IXA attached xSeries server, or an iSCSI HBA attached xSeries or IBM BladeCenter server.
Integrated xSeries Server (IXS): A PC (Intel-based computer) on a PCI expansion card that installs inside an iSeries server.
Integrated xSeries Adapter (IXA): A PCI expansion card that installs inside selected models of IBM eServer™ xSeries servers, providing a high-speed link to an iSeries server.
Internet Protocol Security (IPSec): Encrypts traffic on the iSCSI network.
IP Multicast: Transmission of an Internet Protocol (IP) datagram to a set of systems that form a single multicast group.
IPSec: See Internet Protocol Security.
IQN: See iSCSI qualified name.
iSCSI: Internet SCSI. Encapsulation of the SCSI protocol within TCP/IP packets. Provides an interoperable solution which can take advantage of existing internet infrastructure, internet management facilities and addresses distance limitations.
iSCSI connection: A connection is a TCP connection. Communication between the initiator and target occurs over one or more TCP connections.
iSCSI initiator adapter: A host bus adapter (HBA) that initiates iSCSI requests. iSCSI initiators issue SCSI commands to request services from components, logical units, of a server known as a target. The iSCSI Initiator is the iSCSI HBA in the xSeries or BladeCenter server.
iSCSI qualified name (IQN): A unique name that identifies an iSCSI target adapter or an iSCSI initiator adapter as defined by the iSCSI standard (RFC 3722).
iSCSI target adapter: A host bus adapter (HBA) that services iSCSI initiator requests. An iSCSI target serves as a storage controller, hosting the logical units (LUNs). In the context of iSeries iSCSI attached servers, the iSCSI target is the iSCSI HBA for iSeries.
Kerberos: A network security protocol created by MIT. It provides the tools of authentication and strong cryptography over the network to help you secure your information systems across your entire enterprise. iSeries Navigator provides Kerberos authenticated sign-on. User Administration supports the single sign-on environment by allowing i5/OS user profile passwords to be defined to be *NONE and to allow enrolled Windows users to set their passwords in Windows. This support is provided when an enrolled user profile attribute is specified as LCLPWDMGT(*NO).
local interface: The local interface represents the configuration parameters that describe the iSCSI target adapter located in the iSeries server.
MAC: See Media Access Control.
Management Module: A high function service processor that is used to control an IBM BladeCenter chassis and the individual servers within it.
Media Access Control (MAC): In a local area network, the protocol that determines which device has access to the transmission medium at a given time.
Microsoft® Windows Cluster Service (MSCS): Service in Microsoft Windows which links individual servers so they can perform common tasks.
network server configuration (NWSCFG): An i5/OS configuration object which describes attributes used with an iSCSI attached remote integrated server. Attributes include the remote system (*RMTSYS), the service processor on the remote system (*SRVPRC) or the configuration security values used to communicate with the server (*CNNSEC). The corresponding i5/OS object type is *NWSCFG.
network server description (NWSD): An i5/OS configuration object which describes an integrated server. The corresponding i5/OS object type is *NWSD.
network server host adapter (NWSH): A network server host adapter (NWSH) is an i5/OS configuration object that is used to configure the iSCSI HBA device in the iSeries server. The corresponding i5/OS device type is *NWSH.
network server storage space (NWSSTG): i5/OS disk storage allocated to an integrated server.
NWSH: See network server host adapter (NWSH).
point to point virtual Ethernet: A virtual Ethernet network configured between an iSeries and an integrated Windows server during its installation. It is the link that is used for communication between the iSeries and an integrated server.
remote interface: The remote interface represents the configuration parameters that describe the iSCSI initiator adapter located in the xSeries server or IBM BladeCenter server. The remote interface includes parameters for both the SCSI and LAN functions of the adapter.
remote system ID: The identifying serial number, type and model of the xSeries server or IBM BladeCenter server. For a standard xSeries server, the service processor and the xSeries server share a common identifier. For an IBM BladeCenter server, this identifies the server within a chassis.
remote system network server configuration: An i5/OS configuration object that is used to configure attributes that are specific to a particular remote xSeries or IBM BladeCenter server. This includes information that is necessary to identify and boot the remote system and information about the iSCSI initiator adapters that the remote system uses. The corresponding i5/OS object type is *NWSCFG with a subtype of *RMTSYS. This object is also referred to using the shorter term remote system configuration.
Remote Supervisor Adapter (RSA): A high function service processor that is used to control xSeries systems.
service processor: A processor that is separate from the main CPU of the system. The service processor is used to control power and perform other management and diagnostic functions for the system. There are several different types of service processors that are used with integrated xSeries and IBM BladeCenter systems. See Remote Supervisor Adapter (RSA), Baseboard Management Controller (BMC) and Management Module.
service processor network server configuration: An i5/OS configuration object that holds the set of parameters that relate to the service processor on the remote system. In the case of IBM BladeCenter servers, this represents the IBM BladeCenter enclosure. The corresponding i5/OS object type is *NWSCFG with a subtype of SRVPRC. This object is also referred to using the shorter phrase service processor configuration.
storage path: The storage path defines which Network server host adapter (NWSH) the storage spaces can use and the IP security rule to use to secure the data traffic.
target node: iSeries iSCSI firmware object that manages the iSCSI session and connection.
unicast: Transmission of data to a single destination.
virtual network: An Ethernet network emulated inside the iSeries to allow networks to be created between i5/OS logical partitions, Linux logical partitions, and integrated Windows servers.
Windows server: Microsoft Windows 2000 Server or Windows Server 2003
Windows Server 2003 Volume Shadow Copy Service: Support that allows application data to be backed up without ending the application. This service improves application availability.