Computer storage Computer storage In computer technology, ABSL is the addressing that is used for SCSI environments. It stands for Adapter, Bus, Scsi-ID and LUN. ...more on Wikipedia about "ABSL"
Aggregate Backup And Recovery System is a backup system used by MVS S/390 mainframes from IBM. It is packaged with IBM's DFSMS. ...more on Wikipedia about "Aggregate Backup And Recovery System"
Arbitrated Loop also known as FC-AL is a Fibre Channel topology that requires no fibre channel switches. Devices are connected in a one-way loop fashion. ...more on Wikipedia about "Arbitrated loop"
ATA over Ethernet (AoE) is a network protocol developed by Coraid, Inc., designed for accessing ATA storage devices over Ethernet networks. It gives the possibility to build SANs with low-cost, standard technologies. ...more on Wikipedia about "ATA over Ethernet"
An Autoloader is a data storage device consisting of at least one tape drive (the drive), a method of loading tapes into the drive (the robot), and a storage area for tapes (the magazine). ...more on Wikipedia about "Autoloader"
Automatic Backup, Archive and Recovery Software is a backup system used by CommVault Systems Inc. servers in the early 1990s. It was replaced by CommVaul's Galaxy Backup and Recovery, which was much easier to use. ...more on Wikipedia about "Automatic Backup, Archive and Recovery Software"
Backup in computer engineering refers to the copying of data for the purpose of having an additional copy of an original source. If the original data is damaged or lost, the data may be copied back from that source, a process which is known as Data recovery or Restore. The "data" in question may be either data as such, or stored program code, both of which are treated the same by the backup software. Backups differ from an archive in that the data is necessarily duplicated, instead of simply moved. ...more on Wikipedia about "Backup"
A Backup rotation scheme is a method for effectivley backing up data where multiple media format are used in the backup process, a common example is the rotation of backup tapes on a regular basis. ...more on Wikipedia about "Backup rotation scheme"
Businesses must adopt policies and procedures with regular and effective system backups ensuring that their data is adequately protected. Prevention of lost data should include a multi-tiered approach that considers the risks related to viruses, firewall protection, content filtering, identifying vulnerabilities and management as well as intrusion detection. All businesses should have a comprehensive backup and disaster recovery plan to mitigate the risks associated with the loss of data. The business costs associated with downtime and data loss could be astronomical. ...more on Wikipedia about "Backup systems and recovery"
Bare-metal restore is a technique in the field of data recovery and restoration where the backed up data is available in a form which allows one to restore a system from "bare metal", i.e. without any requirements as to previously installed software or operating system. ...more on Wikipedia about "Bare-metal restore"
Bit cell is the length of tape, the area of disc surface, or the part of integrated circuit in which a single bit is recorded. The smaller the bit cells are, the better the storage density of the medium is. ...more on Wikipedia about "Bit cell"
Block storage refers to the direct access to random disk blocks in computer disk storage. Block storage is normally abstracted by a file system or database management system for use by applications and end users. The physical or logical volumes accessed via Block I/O may be devices internal to a server, direct attached via SCSI or Fibrechannel, or distant devices accessed via a storage area network (SAN) or iSCSI protocol. Database management systems often use Block I/O for improved performance and recoverability as compared to layering the DBMS on top of a file system. ...more on Wikipedia about "Block storage"
Buffer credits, also called buffer-to-buffer credits (BBC) are used as a flow control method by Fibre Channel technology and represent the number of frames a port can store. ...more on Wikipedia about "Buffer credits"
A card image is an archaic term for an ASCII string, usually 80 bytes in length. It refers to a Hollerith card, a data storage medium popular in the 1960s and 1970s. Two standard sizes of Hollerith card stored 80 or 132 characters. A single card was typically used to store a single line of text, for example a line of FORTRAN code. Many data formats, such as the FITS image file format, still use card images as basic building blocks -- even though physical hollerith cards have not been widely used since the advent of inexpensive disk drives in the 1980s. ...more on Wikipedia about "Card image"
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In computing, a centralized storage area network (SAN) is a storage area network with many heterogenous servers connected to one single storage space. ...more on Wikipedia about "Centralized storage area networks"
Computer storage, or computer memory, refers to the computer components, devices and recording media that retain binary information for some interval of time. In casual language, memory usually refers to forms of storage which are fast, but lose their contents in a case of power loss, and storage refers to forms of storage which are slower, but suitable for long-term retention. ...more on Wikipedia about "Computer storage"
Computer storage density is a measure of the quantity of information bits that can be stored on a given length of track, area of surface, or in a given volume; of a computer storage medium. Generally, higher density is more desirable, for it allows greater volumes of data to be stored in the same physical space. Density therefore has a direct relationship to storage capacity of a given medium. ...more on Wikipedia about "Computer storage density"
Continuous data protection (CDP), also called continuous backup, refers to backup of computer data by automatically saving a copy of every change made to that data, essentially capturing every version of the data that the user saves. It allows the user or administrator to restore data to any point in time. ...more on Wikipedia about "Continuous data protection"
A data island is a data store, such as on a PDA or other computing device, that has limited or no external connectivity. This limits the ability of the user to synchronize with or copy the data to other devices. Though new data can be added to the system, the ability to move that data elsewhere is impractical or impossible. ...more on Wikipedia about "Data island"
In computing, a data storage device—as the name implies—is a device for storing data. It usually refers to permanent (non-volatile) storage, that is, the data will remain stored when power is removed from the device; unlike semiconductor RAM. Recording can be done mechanically, magnetically, or optically. ...more on Wikipedia about "Data storage device"
In computing, direct-attached storage (sometimes abbreviated as DAS) is a term to differentiate non- networked storage from SAN and NAS. The term did not exist before the advent of networked enterprise storage, though it is often confused with the mainframe term, DASD, which refers to any random-access disk storage system. Another common misconception is that DAS is synonymous with 'JBOD', a term that refers to storage which is not protected with RAID but actually has no connectivity implications. ...more on Wikipedia about "Direct attached storage"
Direct Attached Storage (DAS) refers to a storage system directly attached to a server or workstation, without a storage network in between. ...more on Wikipedia about "Direct Attached Storage"
Disaster recovery in information technology is the ability of an infrastructure to restart operations after a disaster. While many of today's larger computer systems contain built-in programs for disaster recovery, standalone recovery programs often provide enhanced features. Disaster recovery is used both in the context of data loss prevention and data recovery. ...more on Wikipedia about "Disaster recovery"
A disk array is an enterprise storage system which contains multiple disk drives. It is differentiated from a disk enclosure in that an array has cache and intelligence so that it can perform functions like RAID and virtualization. ...more on Wikipedia about "Disk array"
In data storage, a disk mirror is a complete separate copy of a data set. ...more on Wikipedia about "Disk mirror"
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