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Posts Tagged ‘glossary’

Data Backup Glossary (Letter S)

November 11th, 2011 Comments off

SaaS: Software as a Service Software as a Service (SaaS) is a software delivery method that provides access to software and its functions remotely as a web-based service. Software as a Service allows organizations to access business functionality at a cost typically less than paying for licensed applications since SaaS pricing is based on a monthly fee. Also, because the software is hosted remotely, users don’t need to invest in …

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Data Backup Glossary (Letter Q)

October 26th, 2011 Comments off

Data Backup Glossary (Letter Q)RAID See redundant array of independent (or inexpensive) disks.

RAIN See redundant array of independent nodes.

Raised floor A type of flooring supported by a metal grid and typically used in data centers. Raised flooring can be removed in pieces to allow for cabling, wiring, and cooling systems to run under the floor space. When the floor is raised, it usually can accommodate space for walking or crawling in.

Recovery …

Data Backup Glossary (Letter P)

October 10th, 2011 Comments off

Physical erase unit A physical erase unit is the smallest memory area of the flash memory media that can be erased in a single erase operation. Its size varies between flash devices.

Platform A physical entity that contains nodes. Platforms include all end devices that are attached to a Fabric, for example, hosts and storage subsystems. Platforms communicate with other platforms in the storage area network using the facilities of …

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Data Backup Glossary (Letter O)

September 17th, 2011 Comments off

Object-based storage device Data Backup Glossary (Letter O)An object-based storage device (OSD) is a device that implements the standard in which data is organized and accessed as objects, where object means an ordered set of bytes (within the OSD) that is associated with a unique identifier. Objects are allocated and placed on the media by the OSD logical unit. With an OSD interface, metadata is associated directly with each data object and can be …

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Data Backup Glossary (Letter N)

August 29th, 2011 Comments off

Near-line storage Data Backup Glossary (Letter N)Near-line storage is used by corporations, including data warehouses, as an inexpensive, scalable way to store large volumes of data. Near-line storage devices include DAT and DLT tapes (sequential access); optical storage such as CD-ROM, DVD, and Blu-ray; magneto-optical which utilize magnetic heads with an optical reader; and also slower P-ATA and SATA hard disk drives. Retrieval of data is slower than SCSI hard disk which is usually …

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Data Backup Glossary (Letter M)

August 16th, 2011 Comments off

Magnetic drum A direct-access, or random-access, storage device. A magnetic drum, also referred to as drum, is a metal cylinder coated with magnetic iron-oxide material on which data and programs can be stored. Magnetic drums were once used as a primary storage device but have since been implemented as auxiliary storage devices.

Magneto-optical Magneto-optical (MO) is a type of data storage technology that combines magnetic disk technologies with optical technologies, …

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