1.1 Glossary

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This document uses the following terms:

data collector: An object entity that defines data collection, including a list of performance and diagnosis data to be collected and a log file name.

data collector set: An object entity that represents a group of data collectors, including scheduling information, stop conditions, and a directory for log files.

data management: The ability to set a data retention policy against logged data and define post-actions of the collection (for example, delete largest log file, compress log file).

diagnosis data: Data that indicates the health status or performance of a system. The types of diagnosis data collected by this protocol include performance counter data, event tracing data, registry key data, Windows Management Instrumentation (WMI), network adapters data, and API tracing data and files.

disk: A persistent storage device that can include physical hard disks, removable disk units, optical drive units, and logical unit numbers (LUNs) unmasked to the system.

dynamic endpoint: A network-specific server address that is requested and assigned at run time. For more information, see [C706].

ETW: Event Tracing for Windows. For more information, see [MSDN-ETW].

folder: A file system construct. File systems organize a volume's data by providing a hierarchy of objects, which are referred to as folders or directories, that contain files and can also contain other folders.

fully qualified domain name (FQDN): An unambiguous domain name that gives an absolute location in the Domain Name System's (DNS) hierarchy tree, as defined in [RFC1035] section 3.1 and [RFC2181] section 11.

globally unique identifier (GUID): A term used interchangeably with universally unique identifier (UUID) in Microsoft protocol technical documents (TDs). Interchanging the usage of these terms does not imply or require a specific algorithm or mechanism to generate the value. Specifically, the use of this term does not imply or require that the algorithms described in [RFC4122] or [C706] must be used for generating the GUID. See also universally unique identifier (UUID).

Interface Definition Language (IDL): The International Standards Organization (ISO) standard language for specifying the interface for remote procedure calls. For more information, see [C706] section 4.

object: In COM, an instance of an object class. Each object implements one or more interfaces that may be obtained from each other by using the IUnknown interface.

opnum: An operation number or numeric identifier that is used to identify a specific remote procedure call (RPC) method or a method in an interface. For more information, see [C706] section 12.5.2.12 or [MS-RPCE].

path: When referring to a file path on a file system, a hierarchical sequence of folders. When referring to a connection to a storage device, a connection through which a machine can communicate with the storage device.

performance counter: A numeric measurement of the performance of one or more computing resources. Bandwidth, Throughputs, and Availability are examples of performance counters.

Performance Logs and Alerts Unique Identifier (PLA-UID): A 128-bit unique identifier. Although the behavior of the PLA protocol does not depend on particular values of this PLA-UID, in order to avoid conflict between PLA-UIDs, the PLA-UID SHOULD be generated as specified in [RFC4122].

remote procedure call (RPC): A communication protocol used primarily between client and server. The term has three definitions that are often used interchangeably: a runtime environment providing for communication facilities between computers (the RPC runtime); a set of request-and-response message exchanges between computers (the RPC exchange); and the single message from an RPC exchange (the RPC message).  For more information, see [C706].

segmentation: A process of creating new log files or stopping a data collector set based on conditions (for example, duration, file size).

UncPath: The location of a file in a network of computers, as specified in Universal Naming Convention (UNC) syntax.

universally unique identifier (UUID): A 128-bit value. UUIDs can be used for multiple purposes, from tagging objects with an extremely short lifetime, to reliably identifying very persistent objects in cross-process communication such as client and server interfaces, manager entry-point vectors, and RPC objects. UUIDs are highly likely to be unique. UUIDs are also known as globally unique identifiers (GUIDs) and these terms are used interchangeably in the Microsoft protocol technical documents (TDs). Interchanging the usage of these terms does not imply or require a specific algorithm or mechanism to generate the UUID. Specifically, the use of this term does not imply or require that the algorithms described in [RFC4122] or [C706] must be used for generating the UUID.

MAY, SHOULD, MUST, SHOULD NOT, MUST NOT: These terms (in all caps) are used as defined in [RFC2119]. All statements of optional behavior use either MAY, SHOULD, or SHOULD NOT.