Data Center Markup Language (DCML) is an XML-based markup language which provides a means for describing data center environments such as dependencies between data center components and managerial policies governing those environments with an open, vendor-neutral language.
Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The W3C's XML 1.0 Specification and several other related specifications—all of them free open standards—define XML.
In computer text processing, a markup language is a system for annotating a document in a way that is syntactically distinguishable from the text. The idea and terminology evolved from the "marking up" of paper manuscripts, i.e., the revision instructions by editors, traditionally written with a blue pencil on authors' manuscripts. In digital media, this "blue pencil instruction text" was replaced by tags, which indicate what the parts of the document are, rather than details of how they might be shown on some display. This lets authors avoid formatting every instance of the same kind of thing redundantly. It also avoids the pointlessness of specifying fonts and dimensions, which do not even apply to many users.
DCML can be used to, for example, link a server provisioning system with a server monitoring system so that when a new server is provisioned, it is also automatically monitored. The DCML document transmitted to the monitoring system in this instance would include information about the machine's IP address and any special ports and services running on the machine that are to be monitored. The DCML document would also contain information about what application the server belongs to and whom to contact, as well as how to contact them, when it goes down. This information is imported into the system that is available to NOC personnel for consultation when an alert occurs.
An Internet Protocol address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing.
DCML is being developed by the Data Center Markup Language Interest Group in conjunction with OASIS. In 2004 it was still in its early stages of development in draft form.
The Organization for the Advancement of Structured Information Standards (OASIS) is a global nonprofit consortium that works on the development, convergence, and adoption of open standards for security, Internet of Things, energy, content technologies, emergency management, and other areas.
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