Infobox short story See Wikipedia WikiProject Novels or Wikipedia WikiProject Books name The Disk title orig El Disco translator author Jorge Luis Borges country Argentina language Spanish language Spanish series genre Fantasy , short story published in The Book of Sand book The Book of Sand publisher media type Print pub date 1975 english pub date 1977 preceded by followed by The Disk is a 1975 in literature 1975 short story written by Argentina Argentinian writer Jorge Luis Borges . It appears in the collection The Book of Sand book The Book of Sand . Synopsis The story deals with a woodcutter who lives in the midst of a deep wood in old England and who has never seen the sea. He tells the reader that at one time a man,who asks lodging from him appears at his door. The woodcutter notes that the man was elderly, as he referred to England as Saxony , which, at the time,was a sign of age. The day after the man wishes to leave, but before he does,he says that he is a King and is descended from Odin . He tells the woodcutter that he is exiled, but that he shall always be a king, because he holds the Disk of Odin, the sole thing in the world that has but one side. He opens his hand and shows the disk the woodcutter sees only an empty palm, but thereafter touches it, feeling a chill in the fingers and seeing a flash. He makes a false claim that he has a full chest of gold and wants to trade it for the disk, because he knows the man will decline. And the man does, to which the woodcutter replies that the man may go. When he turns around, the woodcutter kills the man with an axe. He then drags the body and throws it into the river. He then comes back and searches for the disk, which he never finds. See also portal Novels Bibliography of Jorge Luis Borges DEFAULTSORT Disk, The Category 1975 short stories Category Short stories by Jorge Luis Borges story stub es El disco ... more details
Notability Products date October 2009 Refimprove date November 2009 The term disk to disk , or D2D , generally refers to disk to disk backup. With D2D, a computer hard disk is backed up to another hard disk rather than to a tape or floppy. D2D is often confused with virtual tape , but differs in that it enables multiple backup and recovery operations to simultaneously access the disk directly by using a true file system. ref citebook title Backup and recovery first W. Curtis last Preston edition 2 publisher O Reilly Media year 2006 ISBN 0596102461 pages 219 ref Typical advantages of disk to disk Higher speed and higher capacity, relative to tape or floppy, resulting in shorter backup and recovery windows. Non linear recovery of data, enabling a specific file to be restored quicker and simpler than with tape. Lower total cost of ownership due to increased automation and lower hardware costs. Citation needed date August 2008 Remote backup services Remote backup service s are closely related to D2D backup as they are most often stored remotely on disk. The only major difference is that the data tends to be held at a remote location and these services are often provided by List of backup software Managed backup providers . References refs compu storage stub Category Computer backup Category Disk cloning ... more details
Disk winged may refer to Peter s Disk winged Bat , bat species from South and Central America Spix s Disk winged Bat , bat species from South and Central America disambig ... more details
Unreferenced stub auto yes date December 2009 Image Nashua diskpack.jpg thumb Disk pack manufactured by Nashua, USA, without its protective cover. A 3.5 modern hard drive is shown for comparison. A Disk pack is a layered grouping of hard disk platter s circular, rigid discs coated with a magnetic data storage device data storage surface . Disk pack is the core component of a hard disk drive. In modern hard disks, the disk pack is permanently sealed inside the drive. In many early hard disks, the disk pack was a removable unit, and would be supplied with a protective canister featuring a lifting handle. The protective cover consisted of two parts, a clear plastic shell, with a handle in the center, that enclosed the top and sides of the disks and a separate bottom that completed the sealed package. To remove the disk pack, the drive would be taken off line and allowed to spin down. Its access door could then be opened and an empty top shell inserted and twisted to unlock the disk platter from the drive and secure it to the top shell. The assembly would then be lifted out and the bottom cover attached. A different disk pack could then be inserted by removing the bottom and placing the disk pack with its top shell into the drive. Turning the handle would lock the disk pack in place and free the top shell for removal. Examples of a hard disks with removable disk packs are the early IBM disk storage IBM 1311 IBM 1311 , and the Digital Equipment Corporation Digital RP04. gallery File Fotothek df n 10 0000117.jpg Operator selects a disk pack File Fotothek df n 10 0000118.jpg Bottom cover is removed File Fotothek df n 10 0000119.jpg Disk pack is ready for insertion File IBM2314DiskDrivesAndIBM2540CardReaderPunch.jpg IBM 2314 s with removable disk packs and empty covers on top gallery References http www 03.ibm.com ibm history exhibits storage storage 1311.html See also commonscat Removable disk packs disk cartridge , hard disk History history of hard disk DEFAULTSORT Disk Pack ... more details
Disk cache may refer to Disk buffer , the small amount of buffer memory present on a hard drive. Page cache , the cache of disk pages kept by the operating systems, stored in unused main memory. General application level cache caching of data stored on the disk. ReadyBoost , a non volatile disk cache stored on a flash memory device, in Windows Vista and Windows 7. disambig ko zh ... more details
In computing , a disk failure usually refers to the failure of a disc based storage device. These are usually either A floppy disk See buzz of death A hard disk See hard disk failure See also Fault tolerant system RAID Data redundancy Disaster recovery Data recovery Data loss Not to be confused with Spinal disc herniation Slipped disk a medical condition of a spine. disambig ... more details
Disk aggregation is the process of combining more than one logical or physical disk drive into a larger logical disk drive. This is done for various reasons creating a single logical disk with a capacity larger than any of the available physical disks providing a simple way to increase disk performance a simple way to implement LUN level storage virtualization See also RAID Storage Virtualization Sources Unreferenced date February 2007 compu storage stub Category Storage virtualization ... more details
Primary sources date July 2008 Infobox software name Disk Utility logo Image Diskutil.png 64px screenshot Image Disk Utility screenshot.png 220px Disk Utility screenshot caption author developer Apple ... license Proprietary software Proprietary website Disk Utility is the name of a Utility software utility created by Apple Inc. Apple for performing Disk storage disk related tasks in Mac OS X . These tasks include ref http docs.info.apple.com article.html?path DiskUtility 10.5 en duh1008.html Disk Utility 10.5 Help Testing and repairing a disk or volume ref the creation, conversion, compression and encryption of disk image s from a wide range of formats read by Disk Utility to .dmg or for CD ... hard disk s, removable media and disk images enabling or disabling Journaling file system journaling verifying a disk s Data corruption integrity , and repairing it if the disk is damaged this will work ... Disk Utility s Repair Disk Permissions feature ref disk erasing, disk formatting formatting , disk partitioning partitioning ref http support.apple.com kb HT2374 Mac OS X 10.5 About resizing disk partitions ref and disk cloning cloning secure deletion of free space or disk using a zero out data, a 7 ..., merging ref http support.apple.com kb TA24359 Mac OS X How to combine RAID sets in Disk Utility ... authoring burning disk images to CD ROM CD or DVD in HFS Plus HFS format ref http support.apple.com kb HT2087 Burning a disk image file on a CD or DVD in Mac OS X ref erasing CD RW s and DVD RW DVD RW s checking the Self Monitoring, Analysis, and Reporting Technology S.M.A.R.T status of a hard disk. Disk Utility functions may also be accessed from the Mac OS X Command line interface command line with the diskutil and hdiutil commands. Disk Utility was updated with Mac OS X v10.3 . Prior to v10.3, the functionality of Disk Utility was spread across two applications Disk Copy and Disk Utility. Disk Copy was used for creating and mounting disk image files, and Disk Utility was used for formatting ... more details
Orphan date December 2010 Unreferenced date December 2009 Disk cartridge has several meanings related to computer storage . 1960s storage medium An early disk cartridge was a single hard disk platter encased in a protective plastic shell. When the removable cartridge was inserted into the cartridge drive peripheral device , the disk read and write head read write head s of the drive could access the magnetic data storage device data storage surface of the platter through holes in the shell. The disk cartridge was a direct evolution from the disk pack drive, or the early hard drive . As the computer storage density storage density improved, even a single platter would provide a useful amount of data storage space, with the benefit being easier to handle than a removable disk pack. An example of a cartridge drive is the early IBM disk storage IBM 2310 IBM 2310 . Disk cartridges were made obsolete by floppy disk s. Expand section date June 2008 Modern storage medium Image Zip disc back.jpg thumb Zip disks are sometimes referred to as disk cartridges. Some more recent removable disk storage media are referred to as disk cartridges . This is most common with Zip drive Zip disk s. It is very rare, but not unheard of, to refer to the floppy disk 3 inch microfloppy as a disk cartridge. Protective casing Some types of optical disc s and magneto optical disc s were either permanently enclosed in a protective plastic sheath, or placed into a sheath before being inserted into the computer drive drive . This sheath was often called caddy , but sometimes also disk cartridge . See also Cartridge electronics Universal Media Disc DEFAULTSORT Disk Cartridge Category Rotating disc computer storage media ... more details
refimprove date March 2011 The Disk Fax was a machine that was used in combination with games for the Family Computer Disk System in Japan. One of the main features of the Disk System is the ability to save data, allowing players to save information such as high score s and other achievements on their game disk. Disk Fax machines could be found in certain stores in Japan during the late 80s early 90s. The Disk Fax machines read save data and send the scores to Nintendo for inclusion on a national scoreboard. Disk Fax machines were used by Nintendo to hold contests in Japan. References http www.atarihq.com tsr fds fds.html tsr s NES archive Family Computer Disk System Nintendo hardware NES Category Nintendo hardware Nintendo stub ... more details
unreferenced date May 2010 The disk controller or hard disk controller is the Electronic circuit circuit which allows the Central processing unit CPU to communicate with a hard disk , floppy disk or other kind of disk drive . Early disk controllers were identified by their storage methods and data encoding. They were typically implemented on a separate controller card. Modified frequency modulation MFM controllers were the most common type in small computers, used for both floppy disk and hard disk drives. Run length limited RLL controllers used data compression to increase storage capacity by about 50 . Priam created a proprietary storage algorithm that could double the disk storage. Shugart Associates Systems Interface Shugart Associates System Interface SASI was a predecessor to SCSI . Modern disk controllers are integrated into the disk drive. For example, disks called SCSI disks have built in SCSI controllers. In the past, before most SCSI controller functionality was implemented in a single chip, separate SCSI controllers interfaced disks to the SCSI bus. The most common types of interfaces provided nowadays by disk controllers are Parallel ATA PATA IDE and Serial ATA for home use. High end disks use SCSI , Fibre Channel or Serial Attached SCSI . Disk controller versus host adapter The correct term for the components that allows a computer to talk to a peripheral bus is host adapter or host bus adapter HBA . On the other hand, a disk controller allows a disk to talk to the same bus. Those two are often confused, especially in the Advanced Technology Attachment PC world . In fact signals read by a disk read and write head are converted by a disk controller, then transmitted over the peripheral bus, then converted again by the host adapter into the suitable format for the motherboard ... a host adapter and a disk controller a disk array controller that allows RAID Hardware RAID hardware ... different functions. See also Disk array controller Forensic disk controller Controller computing ... more details
other uses2 Disc Unreferenced date December 2009 File CIRCLE 1.svg thumb left A disk is the region bounded by a circle . An open disk is the interior topology interior of the disk excluding the bounding circle, while a closed disk see closed set is the open disk together with the bounding circle. In geometry , a disk also Spelling of disc spelled disc is the region in a plane geometry plane bounded by a circle . A disk is said to be closed or open according to whether or not it contains the circle that constitutes its boundary. In Cartesian coordinates , the open disk of center math a, b math and radius R is given by the formula math D x, y in mathbb R 2 x a 2 y b 2 R 2 math while the closed disk of the same center and radius is given by math overline D x, y in mathbb R 2 x a 2 y b 2 le R 2 . math The area geometry area of a closed or open disk of radius R is R sup 2 sup see pi . The Ball mathematics ball is the disk generalised to metric spaces . However, sometimes disk is used to mean ball . In theoretical physics a disk is a rigid body which is capable of participating in collisions in a two dimensional gas . Usually the disk is considered rigid so that collisions are deemed elastic collision elastic . Geometry File Unit disk rot.svg thumb right The Euclidean disk is Circular symmetry circular symmetrical . Topological notions The open disk and the closed disk are not homeomorphic ... characteristic of a point and therefore also that of a closed or open disk is 1. Every continuous map from the closed disk to itself has at least one fixed point mathematics fixed point we don t require ... . The statement is false for the open disk consider for example math f x,y left frac x sqrt 1 y 2 2 ,y right math which maps every point of the open unit disk to another point of the open unit disk slightly to the right of the given one. See also Unit disk , a disk with radius one Annulus mathematics Disk algebra Lentoid Moment of inertia of a uniform disc DEFAULTSORT Disk Mathematics Category ... more details
Unreferenced stub auto yes date December 2009 Infobox Software name Disk Copy logo Deleted image removed Image Disk Copy.png Disk Copy icon screenshot caption developer Apple Computer latest release version 10.2 operating system System Software 6 , System 7 Macintosh System 7 , Mac OS 8 , Mac OS 9 , Mac OS X v10.0 , Mac OS X v10.1 , Mac OS X v10.2 genre disk image emulator license Disk Copy was the default utility for handling disk image s in System 7 Macintosh System 7 through Mac OS X 10.2 Usable in System Software 6 as well . In later versions of Mac OS X it has been replaced by DiskImageMounter for mounting the images and Disk Utility for creating them. Although the last official public release of Disk Copy for Mac OS 9 was version 6.3.3, there was to be a version 6.5 that supported the newer DMG image format introduced with Mac OS X. But because Apple had stopped support for OS 9 already, support for the old OS was eventually removed in favour of OS X. As such the OS 9 version of 6.5 only ever made it to beta 13 before development on it stopped. There was also a developer version 6.4 that 6.5 was based on and had most of the same functionality, but as a developer version it was never released. Although version 6.4 and 6.5 will read DMG images when the system is booted into OS 9, they can only do so if the image is not compressed. Disk Copy was also the name of an Apple utility distributed with some of the earliest version of the Mac OS. In order to copy 400K floppy disks using as few disk swaps as possible on a machine with only 128K of RAM, the original Disk Copy used the screen buffer to store binary data from the disk being copied as a result, the screen other than ... image formats Disk Copy Disk Copy 4.2 DiskSet PC drive container raw disk image See also DiskImageMounter The Mac OS X 10.3 and later successor. Disk Utility Creates disk images in Mac OS X 10.3 and later. RaWrite and RaWrite2 for MS DOS and Microsoft Windows dd Unix Category Mac OS Category Disk ... more details
with disc buffer. In computer storage , disk buffer often ambiguously Fact date September 2007 called disk cache or cache buffer Fact date September 2007 is the embedded memory in a hard drive acting as a buffer computer science buffer between the rest of the computer and the physical hard disk platter ... a small amount of memory, used to store the bits going to and coming from the disk platter. The disk ... system in the computer s main memory . The disk buffer is controlled by the microcontroller in the hard disk drive , and the page cache is controlled by the computer to which that disk is attached. The disk buffer is usually quite small, from 2 to 32 Mebibyte MiB , and the page cache is generally ... in the disk buffer is rarely reused. Fact date September 2007 In this sense, the terms disk cache and cache buffer are misnomers the embedded controller s memory is more appropriately called the disk buffer. Fact date September 2007 Note that disk array controller s, as opposed to disk controller ... a read from the disk, the disk arm moves the Disk read and write head read write head to or near ..., the first sectors to be read are not the ones that have been requested by the operating system. The disk s embedded computer typically saves these unrequested sectors in the disk buffer, in case the operating system requests them later. Speed matching The speed of the disk s I O interface to the computer almost never matches the speed at which the bits are transferred to and from the hard disk platter . The disk buffer is used so that both the I O interface and the disk read write head can operate at full speed. Write acceleration The disk s embedded microcontroller may signal the main computer that a disk write is complete immediately after receiving the write data, before the data are actually ... before the data are permanently fixed in the magnetic media, the data will be lost from the disk buffer, and the file system on the disk may be left in an inconsistent state. On some disks, this vulnerable ... more details
Notability date August 2009 Primary sources date August 2009 Infobox software name Disk Order logo Deleted image removed Image Disk Order.png 48px screenshot Image diskorder.png 250px caption Screenshot of Disk Order developer Like Mac Group latest release version 3.1 operating system Mac OS X genre File manager license Proprietary software Proprietary website http www.likemac.ru english www.likemac.ru english Disk Order is a shareware Norton Commander like file manager File Manager OFM for Mac OS X . See also Comparison of file managers Comparison of FTP client software External links http www.likemac.ru english The official site of Disk Order File managers Category Mac OS X software Category FTP clients mac software stub ru Disk Order ... more details
Infobox Software name Private Disk logo Image Private Disk logo.png screenshot Image Private disk main ... to update Comparison of disk encryption software latest release date November 10, 2010 latest preview ... Seven genre Disk encryption software language 17 languages license shareware price USD 65 website http www.dekart.com products encryption private disk www.dekart.com products encryption private disk Overview Private Disk is a disk encryption application for the Microsoft Windows operating system , developed ... on the fly other software can use the drive as if it were a usual one. One of Private Disk s key ... encryption. Although Private Disk uses a NIST certified implementation of the AES ref name NIST AES ... Disk the encryption hash library used ref http www.dekart.com fileadmin company Dekart 20NIST CSE 20AES ... ref , and not to Private Disk as a complete system. Feature highlights NIST certified implementation of Advanced Encryption Standard AES 256 bit, and SHA 2 . Private Disk complies with Federal Information Processing Standard FIPS 197 and Federal Information Processing Standard FIPS 180 2 Disk ... container format compatible with containers used by SecuBox disk encryption software by Aiko Solutions ... disk Compatibility with Windows 9x and Windows NT based operating systems including Windows Vista ... disk is mounted or dismounted Encrypted backup of an encrypted image Password quality meter Automatic backup of a disk s encryption key Built in password recovery tool Compatibility with 64 bit platforms Awards Existing versions There are multiple versions of Private Disk, which provide a different feature set http www.dekart.com products encryption private disk Private Disk hard disk encryption ..., USB disk portability, etc. http www.dekart.com products encryption private disk mf Private Disk Multifactor is a superset of Private Disk, providing the same functionality, adding support for biometric ... encryption private disk light Private Disk Light is a free version, it uses AES 128 and comes with a restricted ... more details
Image DOM.JPG thumb right 250px Disk on module A disk on module DOM is a Solid state drive flash drive with either 40 44 pins Parallel ATA IDE Standard ATA Interface USB or SATA Interface to be used as a computer hard disk drive HDD . The flash to IDE converter simulates a harddisk, and therefore the modules can be used without additional software or drivers. They are used particularly within embedded computing systems where they can often be deployed in to very harsh environments where mechanical hard disk drives would simply fail , or in a thin client because of small size, low power consumption and silent operation. DOMs are losing their market to integrated on motherboard CompactFlash CF to IDE converters that provide hard disk drive simulation for the widely supported CF standard. DOMs are highly reliable as they do not have any moving parts like regular hard disks and are small in size and light in weight. However, after a disk crash in traditional hard disk, some data may still be recoverable by scanning the physical media using specialized equipment, but there is no known method to recover lost data from a physically damaged DOM. Citation needed date July 2010 Currently storage capacities range from 32MB to 32GB with various form factor including vertical or horizontal orientation. The DOM works the same way as a solid state drive , but it is generally plugged directly to the motherboard. External links History http www.storagesearch.com ssd.html STORAGEsearch.com http www.soarland.com CF Card Adapter catalog 41.html CF to 40 Pin 44 Pin SATA ZIF Adapter DEFAULTSORT Disk On Module Category Solid state computer storage media Compu hardware stub de Disk on Module fr Disk On Module it Disk on module nl Disk on module ru Disk on Module ... more details
mergefrom Staging data discuss Talk Disk staging Merger proposal date October 2010 Unreferenced date December 2009 Disk staging is using hard disk disks as an additional, temporary stage of backup process before finally storing backup to magnetic tape data storage tape . Backups stay on disk typically for a day or a week, before being copied to tape in a background process and deleted afterwards. The process of disk staging is controlled by the same software that performs actual backups, which is different from virtual tape library where intermediate disk usage is hidden from main backup software. Both techniques are known as D2D2T disk to disk to tape . Restoring data Data is restored from disk if possible . But if the data exists only on tape it is restored directly no backward staging on restore . Reasons Reasons behind using D2D2T increase performance of small, random access restores disk has much faster random access than tape increase overall backup restore performance although disk and a tape have similar streaming throughput, you can easily scale disk throughput by the means of Data striping striping and tape striping is a much less established technique increase utilization of tape drive s tape shoe shining effect is eliminated when staging note that it may still happen on tape restores See also Backup Virtual tape library DEFAULTSORT Disk Staging Category Computer storage zh ... more details
A disk editor is a computer program that allows its user to read, edit, and write raw data at ASCII character or hexadecimal , byte byte levels on disk drives e.g., hard disk s, USB flash disk s or removable media such as a floppy disk s as such, they are sometimes called sector editors, since the read write routines built into the electronics of most disk drives require to read write data in chunks of disk sector sector s usually 512 bytes . Many disk editors can also be used to edit the contents of a running computer s computer memory memory or a disk image . Unlike hex editors, which are used to edit Computer file files , a disk editor allows access to the underlying disk structures, such as the master ... directories . Programmers can use disk editors to understand these structures and test whether ... disk editors include special functions which enable more comfortable ways to edit and fix file systems or other disk specific data structures. Furthermore some include simple file browsers that can present the disk contents for partially corrupted file systems or file systems unknown to the operating system. These features can be used for example for file recovery. History Disk editors for home ... resets, instead of having to be re loaded on the same disk drive that later would hold the floppy to be edited the majority of home computer users possessed only one floppy disk drive at that time . Having the disk editor on cartridge also helped the user avoid editing damaging the disk editor application disk by mistake. List of some disk editors or products containing them External links ... disk editor and RAM editor for Win9x NT and up. http wxhexeditor.sf.net wxHexEditor designed for huge ... may need cleanup http apps.tempel.org iBored iBored cross platform block oriented disk and file editor with templates system and remote network disk access. Knows several common disk structures ... hex editor including disk editor, process editor and RAM editor for Windows 2000 and up. http ... more details
SAN Disk may refer to Storage Area Network computer storage devices SAN disks SanDisk SanDisk Corporation formerly known as SunDisk disambig ... more details
Multiple issues unreferenced December 2009 context October 2009 Image HP HASS NIKE.jpg thumb Hewlett Packard disk arrays HASS top and NIKE OEM d Data General SCSI Clariion Image EMC Clariion CX500.jpg thumb EMC Corporation EMC CLARiiON CX500 Cover removed on one Shelf Image EMC Symmetrix DMX1000 Front.jpg thumb EMC Corporation EMC Symmetrix DMX1000 A disk array is a disk storage system which contains multiple disk drive s. It is differentiated from a disk enclosure , in that an array has cache memory and advanced functionality, like redundant array of independent disks RAID and Storage virtualization virtualization . Components of a typical disk array include Disk array controller s Cache memories Disk enclosure s Power supply Power supplies Typically a disk array provides increased availability, resiliency and maintainability by using additional, redundant components controllers, power supplies, fans, etc. , often up to the point when all single point of failure single points of failure SPOFs are eliminated from the design. Additionally those components are often hot swappable. Typically, disk arrays are divided into categories Network attached storage NAS arrays storage area network SAN arrays Modular SAN arrays Monolithic SAN arrays Utility Storage Arrays Storage virtualization DEFAULTSORT Disk Array Category Computer storage Category Fault tolerant computer systems Category RAID de Disk Array fr Baie de stockage ja pl Macierz dyskowa ru ... more details
A small disk used in a telescope to block the view of a bright object in order to allow observation of a fainter one. The coronagraph , at its simplest, is an occulting disk in the focal plane of a telescope , or in front of the entrance aperture , that blocks out the image of the solar disk, so that the corona can be seen. Notes, References and Sources http www.daviddarling.info encyclopedia The Encyclopedia of Astrobiology, Astronomy, and Spaceflight Category Telescopes Category Optical devices de Kegelblende ... more details
In data storage device data storage , disk mirroring or RAID1 is the replication of logical disk volumes onto separate physical hard disk s in Real time computing real time to ensure continuous availability ... on the disk array controller or via server computing server software . It is typically a proprietary ... of a disk hardware failure a system can continue to process or quickly recover data. Mirroring may be done locally where it is specifically to cater for disk unreliability, or it may be done ... solutions such as disk array s or in software within the operating system. There are several scenarios for what happens when a disk fails. In a hot swap system, in the event of a disk failure, the system itself typically diagnoses a disk failure and signals a failure. Sophisticated systems may automatically activate a hot standby disk and use the remaining active disk to copy live data onto this disk. Alternatively, a new disk is installed and the data is copied to it. In less sophisticated systems, the system is operated on the remaining disk until such time as a spare disk can be installed ..., system performance is usually degraded as the disk system is fully occupied in copying data from one disk to the other. It is often misunderstood that mirroring of disks is a substitute for taking regular backups as it is incorrectly assumed that the only cause of data loss is disk failure. In fact ... to say It is differentiated from a disk snapshot snapshot in that there are no remaining links ..., disk mirroring can allow each disk to be accessed separately for reading purposes. Under certain circumstances ... disk can seek most quickly to the required data. This is especially significant where there are several tasks competing for data on the same disk, and thrashing where the switching between tasks takes ... configurations that frequently access the data on the disk. In some implementations, the mirrored disk can be split off and used for data backup, allowing the first disk to remain active. However merging ... more details
Disk Manager was a popular 1980s and 1990s software and documentation package for MS DOS and PC DOS computers, useful for self installing PC hard disks. It was written by Ontrack Data Recovery Ontrack . Installation covered different aspects explaining hardware concepts documenting switches of many of the existing disks putting into place custom software drivers which circumvented BIOS or even DOS limitations, notably those related to maximum disk or partition size providing testing and informational utilities Drivers could be either DOS type, or replacement Master Boot Record code. Diskettes with Disk Manager were provided by some disk manufacturers eg. IBM , in custom OEM versions, supporting all of their models. In the recent years the company has switched to the business of providing disk recovery services and changed its name to Ontrack Data Recovery . External links http www.ontrackdatarecovery.com Ontrack Data Recovery Category Windows software Windows software stub ... more details
F6 disk is a colloquial name for a floppy disk containing a Microsoft Windows NT device driver for a SCSI or RAID system. F6 disks are used by other NT based versions of Windows, including Windows 2000 , Windows Server 2003 , and Windows XP . On Windows Vista and Windows 7 , F6 disks are obsolete its setup process supports loading third party drivers from CD ROMs and USB drives. Usage An F6 disk is named after the manner in which it is used. During the installation process for Windows, the Setup program must load device drivers for the disk system on which Windows will be installed. Unless the disk system has been established on the market before the finalization of the particular Windows release, the drivers are not included on the Windows installation discs, and must be loaded by means of an F6 disk. An F6 disk is loaded in Windows setup by pressing the Function key F6 key immediately when Windows Setup starts. The message Press F6 if you need to install a third party SCSI or RAID driver... is briefly flashed on the screen every time Windows Setup starts. An F6 disk contains device drivers in its root directory . F6 disks are always floppy disks the device drivers loaded by Windows Setup at the point of the F6 prompt are unable to read any media other than floppies, with the exception of Windows Vista and 7, which adds USB flash memory support or fixed disk support for this situation. Device drivers for RAID and other disk controllers are often provided on CD ROM , but must be copied to a floppy F6 disk if they are to be used during Windows Setup. An alternate approach to this particular problem is slipstream computing slipstreaming of the required SATA SCSI SAS RAID EIDE drivers into the windows installation files directory e.g. i386 for the x86 variety by means of software like nLite , and create an ISO image that can be burned to CD or DVD media. References Microsoft support, http support.microsoft.com ?kbid 313348 KB313348 Category RAID Category Device drivers ... more details
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