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Device that manages disk drives
A disk array controller is a device that manages the physical disk drives and presents them to the computer as logical units. It often implements hardware
Disk_array_controller
Controller for disk storage, usually integrated into the drive
A disk controller is a controller circuit that enables a CPU to communicate with a hard disk, floppy disk or other kind of disk drive. It also provides
Disk_controller
Data storage technology
storing all data in a single hard disk drive or solid-state drive, RAID coordinates two or more such devices into a disk array. When the computer writes data
RAID
Disk storage system
Components of a disk array include: Disk array controllers Cache in form of both volatile random-access memory and non-volatile flash memory. Disk enclosures
Disk_array
Replication of data onto multiple hard disks
or point-in-time. Replication is enabled via microcode on the disk array controller or via server software. It is typically a proprietary solution,
Disk_mirroring
levels. Array controller based encryption describes the encryption of data occurring at the disk array controller before being sent to the disk drives
Array controller based encryption
Array_controller_based_encryption
Software-based, block-level cache of drive data stored in the host computer's main memory
case the cache is integrated into a hard disk drive and usually called disk buffer), or in a disk array controller, such memory should not be confused with
Page_cache
Index of articles associated with the same name
communications controller chip Peripheral DMA controller Disk controller Floppy disk controller Disk array controller, also known as a RAID controller, a type
Controller_(computing)
PowerEdge RAID Controller, or Dell PERC, is a series of RAID, disk array controllers made by Dell for its PowerEdge server computers. The controllers support
Dell_PERC
Buffer between a computer and a storage disk
called disk buffer. Note that disk array controllers, as opposed to disk controllers, usually have normal cache memory of around 0.5–8 GiB. When a disk's controller
Disk_buffer
Computer bus used for data storage systems
are traditionally reserved for larger devices, such as servers or disk array controllers. Serial ATA (SATA). The SATA data cable has one data pair for differential
Hard_disk_drive_interface
Electro-mechanical data storage device
are traditionally reserved for larger devices, such as servers or disk array controllers. Serial Attached SCSI (SAS). The SAS is a new generation serial
Hard_disk_drive
Any of a set of standard configurations of Redundant Arrays of Independent Disks
comprise a basic set of RAID ("redundant array of independent disks" or "redundant array of inexpensive disks") configurations that employ the techniques
Standard_RAID_levels
Removable disk storage medium
but to the disk controller and its lack of support for Apple's GCR (Group Coded Recording) encoding used on 400 kB and 800 kB Macintosh disks. 8 in (200 mm)
Floppy_disk
Computer hardware device
devices include ESCON and newer FICON. Disk array controller Fibre Channel Host Bus Adapters Host controller interface for USB and FireWire host adapter
Host_adapter
Providing to a computer system a logical view of physical storage
(hard disk, optical disk, tape, etc.) in the enterprise as a single pool of storage." A "storage system" is also known as a storage array, disk array, or
Storage_virtualization
Computer hard drive feature
prevent a disk from being unnecessarily marked as 'failed' by limiting the time spent on correcting detected errors before advising the array controller of a
Error_recovery_control
logical disks. The IBM SAN Volume Controller uses the term "vdisk" to refer to these logical disks. Today, the rationale for the logical disk approach
Logical_disk
magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi. Both the hard disk drive (HDD) and floppy disk drive
History of IBM magnetic disk drives
History_of_IBM_magnetic_disk_drives
Group of electrical connectors specifically aligned
disk array controller or multiple connectors that can be connected to one or more controllers in arbitrary way. Backplanes are commonly found in disk
Backplane
Sharing information to ensure consistency in computing
a disk array controller) or in software (in a device driver). The most basic method is disk mirroring, which is typical for locally connected disks. The
Replication_(computing)
matrices, rod arrays, drums, drum arrays, etc., the engineers at IBM's San Jose California laboratory invented the hard disk drive. The disk drive created
History_of_hard_disk_drives
1977–1993 series of microcomputers
second drive (without controller) retailed for $495. The Disk II single-sided floppy drive used 5.25-inch floppy disks; double-sided disks could be used, one
Apple_II
Battery used when the primary power source is unavailable
ion cells available in some ratings. Server-grade disk array controllers often contain onboard disk buffer, and provide an option for a "backup battery
Backup_battery
Data segmentation technique
an array of disks. Striping is used across disk drives in redundant array of independent disks (RAID) storage, network interface controllers, disk arrays
Data_striping
Computer storage device with no moving parts
This interface is managed by the SSD's controller and is often similar to those found in traditional hard disk drives (HDDs). Common interfaces include:
Solid-state_drive
Analysis, and Reporting Technology) data from hard drives. Disks that are members of a RAID array may in some cases have their SMART attributes (data) largely
Comparison of S.M.A.R.T. tools
Comparison_of_S.M.A.R.T._tools
American data storage company
for the first disk array sub system and in the same year, they launched their first ever data storage device: a floppy disk controller named FD 1771.
Western_Digital
Topics referred to by the same term
Collective, a community arts center in New York City Redundant Disk Array Controller, a type of computing hardware Roller Derby Association of Canada
RDAC
Computer data storage
configuration of Storage Center includes a dual, redundant disk array controller, disk enclosure, disk drives, connectivity hardware, and software modules.
Compellent_Technologies
American data storage company
the controller. All arrays support RAID levels 6,10 and 50. For the PS6100 series and PS6110 series there are 6 sub-models, based on the type of disks used:
EqualLogic
Copy-on-write file system
hungry. Efficient rebuilding of RAID arrays—a RAID controller often has to rebuild an entire disk, but ZFS can combine disk and file knowledge to limit any
ZFS
Computer data storage server
shares on that server) whereas a disk available through a SAN still appears to the client OS as a disk, visible in disk and volume management utilities
Network-attached_storage
sectors that crop up after manufacturing. Many disk/controller subsystems reserve storage to remap defective disk sectors. The drive automatically creates its
Internal hard drive defect management
Internal_hard_drive_defect_management
Storage array product
discontinued SAN disk array manufactured and sold by EMC Corporation, it occupied the entry-level and mid-range of EMC's SAN disk array products. In 2011
Clariion
Electromechanical malfunctioning
A hard disk drive failure occurs when a hard disk drive malfunctions and the stored information cannot be accessed with a properly configured computer
Hard_disk_drive_failure
Electronic non-volatile computer storage device
even a modest amount of flash storage can offer vast speedups over arrays of disk drives. In May 2006, Samsung Electronics announced two flash-memory
Flash_memory
Data storage device
Universal Serial Bus-Based PC Flash Disk" that combined flash memory storage with USB connectors through a USB controller. The patent was subsequently granted
USB_flash_drive
Fallback mode for a RAID storage array
When a RAID array experiences the failure of one or more disks, it can enter degraded mode, a fallback mode that generally allows the continued usage of
Degraded_mode
Computer bus interface for storage devices
known as the IBM AT. The IBM AT's controller interface became a de facto industry interface for the inclusion of hard disks. "AT" was IBM's abbreviation for
SATA
LUN masking is performed on endpoint devices - host adapters or disk array controllers. Some fibre channel switches allow zoning at the LUN level, effectively
Persistent_binding
Use of multiple computers for redundancy
applications for improving confidentiality in cloud computing. Disk array controller Disk Data Format (DDF) Vinum volume manager Jaatun, Martin Gilje; Zhao
Redundant Array of Inexpensive Servers
Redundant_Array_of_Inexpensive_Servers
separate disks via RAID technology (level 1 or greater). The RAID controller implements the disk writing algorithms that enable separate disks to act as
Stable_storage
Internet Protocol-based storage networking standard for linking data storage facilities
storage into storage arrays while providing clients (such as database and web servers) with the illusion of locally attached SCSI disks. It mainly competes
ISCSI
Computer hardware component
the HBA is a storage controller located inside a server, desktop, rack or workstation computer that interfaces with hard disk drives or solid-state drives
SGPIO
Computer storage product
storage controllers, the NetApp FAS, ASA, and AFF systems usually have at least one PCIe-based slot available for additional network, tape and/or disk connections
NetApp_FAS
Topics referred to by the same term
an IBM 650 with an IBM 355 Disk Storage unit and introduced in 1956 IBM 9394 RAMAC Array, a disk storage array and controller unit introduced in 1994 which
RAMAC
Type of computer memory
this reason, DRAM usually needs to operate with a memory controller; the memory controller needs to know DRAM parameters, especially memory timings,
Dynamic_random-access_memory
Internal expansion bus in early PC compatibles
standard dual-function floppy disk controller and hard disk controller card for the IBM PC AT; the fixed disk controller on this card implemented the register
Industry Standard Architecture
Industry_Standard_Architecture
Set of computer and peripheral connection standards
then at Adaptec, which he founded in 1981. A SASI controller provided a bridge between a hard disk drive's low-level interface and a host computer, which
SCSI
Way to identify a logical unit in computer storage
typical multi-disk drive has multiple physical SCSI ports, each with one SCSI target address assigned. An administrator may format the disk array as a RAID
Logical_unit_number
(moving data between the disk surface and the controller on the drive) and the external rate (moving data between the controller on the drive and the host
Hard disk drive performance characteristics
Hard_disk_drive_performance_characteristics
Catweasel is a family of enhanced floppy-disk controllers from German company Individual Computers. These controllers are designed to allow more recent computers
Individual Computers Catweasel
Individual_Computers_Catweasel
Storage virtualisation appliance
2145 SAN Volume Controller (SVC) is an inline virtualization or "gateway" device. It logically sits between hosts and storage arrays, presenting itself
IBM_SAN_Volume_Controller
Family of superminicomputers by Digital
semiconductor (MOS) RAM chips mounted on memory array cards. Each memory controller controls up to 16 array cards. The memory is protected by error correcting
VAX-11
Stacked combination of two or more standard RAID levels
levels (where "RAID" stands for "redundant array of independent disks" or "redundant array of inexpensive disks") to gain performance, additional redundancy
Nested_RAID_levels
Hard disk monitoring software
version 3.00, Hard Disk Sentinel supports numerous RAID controllers, by detection of hard disk status in RAID configurations and disk surface testing. Since
Hard_Disk_Sentinel
Monitoring system in computer drives
early hard disk monitoring technology was introduced by IBM in 1992 in its IBM 9337 Disk Arrays for AS/400 servers using IBM 0662 SCSI-2 disk drives. Later
Self-Monitoring, Analysis and Reporting Technology
Self-Monitoring,_Analysis_and_Reporting_Technology
Software product from Symantec
from the same disk array. Logical volumes that are mirrored have higher availability when mirrored across separate disk array controllers. Mirroring logical
Symantec Operations Readiness Tools
Symantec_Operations_Readiness_Tools
Computer storage-device driver
include array device renaming when a disk in an array is replaced, an array being considered healthy if the machine reboot/crashes during an array rebuild
Intel Rapid Storage Technology
Intel_Rapid_Storage_Technology
A hybrid array is a form of hierarchical storage management that combines hard disk drives (HDDs) with solid-state drives (SSDs) for I/O speed improvements
Hybrid_array
1983 personal computer
greatly reduced the chip count and allows the circuitry for the Floppy Disk Controller and the RS-232 serial port to be included on the CPU board, making
TRS-80_Model_4
Type of computer memory used from 1955 to 1975
least two wires pass through each core, forming a two-dimensional X-Y-wired array of cores. When an electrical current above a certain threshold is applied
Magnetic-core_memory
Type of computer data storage
that sits above and spans its control over device-level storage controllers, disk arrays, and virtualization middleware. A storage hypervisor has also been
Software-defined_storage
across all disks of a declustered array. Under traditional RAID, an entire disk storage system of, say, 100 disks would be split into multiple arrays each of
Non-standard_RAID_levels
Computer error correction technique
commonly in memory, disk arrays, file systems, or FPGAs as a mechanism of error detection and correction. With data scrubbing, a RAID controller may periodically
Data_scrubbing
Computer storage interface standard
located on an ISA interface card. The integrated controller presented the drive to the host computer as an array of 512-byte blocks with a relatively simple
Parallel_ATA
FCS—Frame Check Sequence FDC—Floppy-Disk Controller FDD—Frequency-Division Duplexing FDD—Floppy Disk Drive FDE—Full disk encryption FDDI—Fiber Distributed
List of computing and IT abbreviations
List_of_computing_and_IT_abbreviations
Storage of digital data readable by computers
include storage replication, disk mirroring and RAID (Redundant Array of Independent Disks). Impending failure on hard disk drives is estimable using S
Computer_data_storage
Storage cluster
Controller native attach. IBM Storwize Easy Tier will automatically manage and continually optimize data placement in mixed pools of nearline disks /
IBM_Storwize
Brand name of computer data storage products
StorTrends is a brand name of disk-based, hybrid array, and solid state storage products for computer data storage in data centers, sold by AmZetta Technologies
StorTrends
Operating system for Tandy TRS-80 computers
supported 40-track disks formatted in double density (using modified frequency modulation). Model Is retrofitted with double density controllers and Models I/III
TRSDOS
Floppy disk drive
the MFM controller chip in the drive is disabled (wired to ground). A 1571 cannot boot from MFM disks; the user must boot CP/M from a GCR disk and then
Commodore_1571
1977 microcomputer by Tandy Corporation
to a disk machine necessitates installing at least 32 KB of RAM, the disk controller board, and another power supply for the disk drives. Disk upgrades
TRS-80
Computer system for running video games
common type of controller since the third generation of console hardware, with designs becoming more detailed to provide a larger array of buttons and
Video_game_console
1981 American microcomputer model
25″ floppy disk drives, storing 160 KB per disk side for a total of 320 KB of storage on one disk. The floppy drives require a controller card inserted
IBM_Personal_Computer
Main printed circuit board used for a computing device
onboard devices. Disk controllers for SATA drives, and historical PATA drives Historical floppy-disk controller Integrated graphics controller supporting 2D
Motherboard
Overview of computer engineering topics
computer system Watchdog timer Redundant array of independent memory Computer data storage Memory controller Memory management unit Static random-access
Computer engineering compendium
Computer_engineering_compendium
Enterprise storage array
HPE Storageworks XP (XP = eXtended Platform) is a computer data storage disk array sold by Hewlett Packard Enterprise using Hitachi Data Systems hardware
HPE_XP
Family of server and workstation computers
33-MHz i486SX chip, 4 MB of memory, and no built-in hard disk drives (a Fast SCSI controller card was preinstalled, however, for aftermarket hard drive
HP_NetServer
IBM data storage technology that uses PCI Express and NVMe
offered as an alternative to industry-standard 2.5" NVMe SSDs in selected arrays from the IBM FlashSystem family, with raw storage capacities of 4.8 TB,
Flash_Core_Module
Method of CPU communication with peripheral devices
was never implemented on hard disks because CPUs of the time would have been severely slowed waiting for the hard disk at the proposed PIO 5 timings,
Programmed_input–output
Series of server computers
10K-RPM disks. Redundant hot-swappable power supply 8-port HP Smart Array P400 or P600, or 16-port P800 SAS RAID controllers available for internal disks, supporting
HPE_Integrity_Servers
Link Disk Subsystem IBM 9335: Disk subsystem in a set of drawers. For AS/400, System 36/38 or 9370 IBM 9337: Disk Array Subsystem; 1992 IBM 9345: Disk Array
List_of_IBM_products
Topics referred to by the same term
Vector Distance Panning, technique for panning sounds around a 3D array of speakers Video Disk Player, fore-runner of DVD player, now an obsolete format Video
VDP
1992 personal computer
A1200 has internal housing for one 2.5" internal hard disk drive connecting to the ATA controller, though it is also possible to accommodate slim 3.5"
Amiga_1200
Personal computer model released in 1983
2x32 KB one A 10 MB hard drive was included on most sub-models, with a disk controller featuring Xebec ICs PC DOS 2.0 was included The 5-pin DIN for the cassette
IBM_Personal_Computer_XT
File system designed to run on flash memory
increases. The earliest flash file system, managing an array of flash as a freely writable disk, was TrueFFS by M-Systems of Israel, presented as a software
Flash_file_system
Data storage subsystem with redundant hard disk drives
to 80 GB of data. Each DataVault unit stored its data in an array of 39 individual disk drives with data spread across the drives. Each 64-bit data chunk
DataVault
Form of non-volatile memory used in computers and other electronic devices
XT often included magnetic disk drives, and larger amounts of RAM, allowing them to load their operating systems from disk into RAM, with only a minimal
Read-only_memory
Personal computer system
came out with disk drives, they could not be used from BASIC (although the kernel routines supported them), and only supported 256 array elements. The
Commodore_PET
simultaneously. Two controller cards could be used to operate a total of eight drives. ALF's controller could read and write not only Apple's various disk formats
ALF_Products
Way to specify the location of data on computer storage devices
drive), this LBA is then passed directly to the drive controller. In redundant array of independent disks (RAID) devices and storage area networks (SANs) and
Logical_block_addressing
which is used as a "Controller", or also more or less, as a server on the network. The controller can be set up to boot from a floppy disk, or from a main
IBM_4694
Line of PowerPC-based computers
such as the dual "Bandit" bus controllers, the proprietary floppy format, and possibly the CD-ROM. UW-SCSI hard disks are seldom an issue and Apple even
Apple_Network_Server
Linux utility for managing software RAID
disk drive so that in the event of some failure to talk to a disk drive via one controller, the system can automatically switch to another controller
Mdadm
Memory card format
storage that integrates NAND flash memory, a buffer, and a controller into a single ball grid array (BGA) package. Unlike other forms of removable card-based
MultiMediaCard
Loudspeaker for low-pitched audio frequencies
vertical array focuses the low frequencies forward to a greater or lesser extent depending on the physical length of the array. Longer arrays have a more
Subwoofer
similar in concept to a redundant array of independent disks (RAID), which protects against the failure of a disk drive, but in the case of memory it
Redundant array of independent memory
Redundant_array_of_independent_memory
Linux distribution
is complete". Marc Smith (14 July 2014). "Open Storage: Dual-Controller OSS Disk Array". Marc Smith (10 March 2013). "ESOS Project Status & Updates (March
Enterprise_Storage_OS
DISK ARRAY-CONTROLLER
DISK ARRAY-CONTROLLER
Girl/Female
Gujarati, Hindu, Indian, Kannada, Marathi, Sanskrit, Sindhi, Telugu
Array of Clouds
Male
German
 Short form of German Diederick, DIRK means "first of the people; king of nations."
Boy/Male
Indian, Parsi
Strong
Girl/Female
Tamil
Meghamala | மேகமாலா
Array of clouds
Meghamala | மேகமாலா
Male
Egyptian
, the most lovely Disk.
Girl/Female
Tamil
Kadambini | காதமà¯à®ªà®¿à®¨à¯€
An array of clouds
Kadambini | காதமà¯à®ªà®¿à®¨à¯€
Boy/Male
French, Hindu, Indian
Sea
Girl/Female
Hindu
Array of clouds
Surname or Lastname
English and French
English and French : habitational name from the city of Arras in Artois, northern France, or one of the other places in France so named.Scottish : habitational name from Airhouse, a locality in Channelkirk, Berwickshire.English : habitational name from a place called Arras in East Yorkshire, earlier spelled Erghes, from the plural of Old Norse erg ‘hut’, ‘shelter’.German : metonymic occupational name for a cloth merchant, from a type of woolen cloth for which the city of Arras in Flanders was famous in the Middle Ages. This name is also established in Mexico.
Surname or Lastname
English and Scottish
English and Scottish : unexplained. The name has been recorded in Glastonbury, Somerset, since 1705.Perhaps a variant of Czech LiÅ¡ka, (see Liska), Slovak LÃÅ¡ka, or German Liske.
Boy/Male
American, English
Lucky
Boy/Male
Hebrew
Lofty; exalted; high mountain.
Male
English
Variant spelling of English Aaron, ARRAN means "light-bringer."
Boy/Male
Australian, Egyptian
Sun Disk
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Oriya, Sanskrit, Sindhi, Tamil, Telugu
An Array of Clouds
Boy/Male
Indian
One who is honored, Exalted
Male
English
 Short form of English Richard, DICK means "powerful ruler." Compare with another form of Dick.
Male
Egyptian
, disk.
Surname or Lastname
English
English : habitational name from Diss in Suffolk, which gets its name from a Norman pronunciation of Middle English diche, Old English dīc ‘ditch’, ‘dike’ (see Dyke).German : habitational name from Dissen near the Teutoburg forest.
Girl/Female
Tamil
Array of clouds
DISK ARRAY-CONTROLLER
DISK ARRAY-CONTROLLER
Female
Greek
Variant spelling of Greek Desdemona, DISDEMONA means "ill-starred."Â
Female
German
 Contracted form of German Katarine, KATRINE means "pure." Compare with another form of Katrine.
Boy/Male
Sikh
Fighter of Love and truth
Boy/Male
Egyptian
Humble.
Girl/Female
Tamil
Shridula | à®·à¯à®°à¯€à®¤à¯à®²à®¾
Blessing
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Punjabi, Sanskrit, Sikh, Sindhi, Tamil, Telugu, Traditional
Light; Enlightened; Light of Sun; Bright; One who Radiates the Light
Boy/Male
English Hebrew
Jordan 'down flowing.
Girl/Female
Indian
Moonlight
Boy/Male
Bengali, Indian, Marathi
Good Citizen
Boy/Male
Indian
Lights of Celebration
DISK ARRAY-CONTROLLER
DISK ARRAY-CONTROLLER
DISK ARRAY-CONTROLLER
DISK ARRAY-CONTROLLER
DISK ARRAY-CONTROLLER
v. t.
To make concave, or depress in the middle, like a dish; as, to dish a wheel by inclining the spokes.
v. t.
To furnish with an arras.
n.
The lower side of the body of some invertebrates, especially when used for locomotion, when it is often called a creeping disk.
n.
The food served in a dish; hence, any particular kind of food; as, a cold dish; a warm dish; a delicious dish. "A dish fit for the gods."
v. t.
To shut up, as in a desk; to treasure.
n.
A circular structure either in plants or animals; as, a blood disk; germinal disk, etc.
n.
To expose to risk, hazard, or peril; to venture; as, to risk goods on board of a ship; to risk one's person in battle; to risk one's fame by a publication.
n.
A flat, circular plate; as, a disk of metal or paper.
p. pr. & vb. n.
of Array
v. t.
To make dusk.
n.
To incur the risk or danger of; as, to risk a battle.
v. t.
To array.
n.
A circular structure either in plants or animals; as, a blood disc, a germinal disc, etc. Same as Disk.
v. t.
To put in a dish, ready for the table.
v. i.
To grow dusk.
v. t.
To stab with a dirk.
imp. & p. p.
of Array
n.
A disk. See Disk.
n.
Order; a regular and imposing arrangement; disposition in regular lines; hence, order of battle; as, drawn up in battle array.
n.
The state of being concave, or like a dish, or the degree of such concavity; as, the dish of a wheel.