R - Definitions
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R
raceway
A raceway, sometimes referred to as a raceway system, is an enclosed conduit that forms a physical pathway for electrical wiring.
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RAIN (redundant/reliable array of inexpensive/independent nodes)
A reliable array of independent nodes (RAIN) is a heterogeneous cluster of compute and storage nodes connected in a fault-tolerant network topology that incorporates multiple interfaces and redundant hardware.
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raised floor
A raised floor is a data center construction model in which a slightly higher floor is constructed above the building's original concrete slab floor, leaving the open space created between the two for wiring or cooling infrastructure.
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real-time operating system (RTOS)
A real-time operating system (RTOS) is an OS that guarantees real-time applications a certain capability within a specified deadline.
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Red Hat
Red Hat is a software company that combines open source Linux operating system components with related programs into a distribution package that customers can order.
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Red Hat Enterprise Linux (RHEL)
Red Hat Enterprise Linux (RHEL) is an enterprise Linux operating system (OS) developed by Red Hat for the business market.
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remote hands
Remote hands is the general name for a service colocation providers offer that enables customers to delegate IT management and maintenance tasks in a colocation facility to technicians hired by the provider.
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RPM Package Manager (Red-hat Package Manager)
RPM Package Manager (RPM), originally called the Red-hat Package Manager, is a program for installing, uninstalling, and managing software packages in Linux.
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runlevel
A runlevel is an operating state on a Unix and Unix-based operating system that is preset on the Linux-based system.