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Topic: Secondary storage



  
 Encyclopedia: Secondary storage
Secondary storage, or external memory, is computer memory that is not directly accessible to the central processing unit of a computer, requiring the use of computer's input/output channels.
Secondary storage is a category of computer storage.
Secondary storage is used to store data that is not in active use.
http://www.nationmaster.com/encyclopedia/Secondary-storage   (640 words)

  
 Computer storage - Wikipedia, the free encyclopedia
Content-addressable storage can be implemented using software (computer program) or hardware (computer device), with hardware being faster but more expensive option.
Secondary storage requires the computer to use its input/output channels to access the information, and is used for long-term storage of persistent information.
Tertiary storage is used in the realms of enterprise storage and scientific computing, and is something a typical computer user never sees firsthand.
http://en.wikipedia.org/wiki/Computer_storage   (2038 words)

  
 Secondary Storage
Secondary storage is also called auxiliary storage and is used to store data and programs when they are not being processed.
Secondary storage is more permanent than main memory, as data and programs are retained when the power is turned off.
It is important to know the difference between secondary storage and a computer's main memory.
http://tdi.uregina.ca/~complit/storaged.html   (751 words)

  
 Secondary Storage
Computer storage is the holding of data in an electromagnetic form for access by a computer processor.
Primary storage is much faster to access than secondary storage because of the proximity of the storage to the processor or because of the nature of the storage devices.
Secondary storage is data on hard disks, tapes, and other external devices such as diskettes, CD-ROMs and Zip drives.
http://ioc.unesco.org/oceanteacher/OceanTeacher2/02_InfTchSciCmm/01_CmpTch/00_compsys/02_hardware/storage.html   (584 words)

  
 What is mass storage? - A Word Definition From the Webopedia Computer Dictionary
Mass storage is measured in kilobytes (1,024 bytes), megabytes (1,024 kilobytes), gigabytes (1,024 megabytes) and terabytes (1,024 gigabytes).
Mass storage is distinct from memory, which refers to temporary storage areas within the computer.
Unlike main memory, mass storage devices retain data even when the computer is turned off.
http://www.webopedia.com/TERM/m/mass_storage.html   (254 words)

  
 secondary storage - a Whatis.com definition
Secondary storage, sometimes called auxiliary storage, is all data storage that is not currently in a computer's primary storage or memory.
In a personal computer, secondary storage typically consists of storage on the hard disk and on any removable media, if present, such as a CD or DVD.
http://whatis.techtarget.com/gDefinition/0,294236,sid5_gci552456,00.html   (95 words)

  
 TechOnLine - Storage Area Network Overview
Primary storage may be assigned to a computer for a long time because the data and applications on the storage become integral parts of the computer.
Secondary storage, like tape drives, may be assigned to a computer for much shorter periods of time, often only as long as is necessary to back up the computer's data files.
Storage sharing—or storage consolidation—enables multiple computers across a corporate network to access a common set of storage devices such as disk arrays, tapes, optical drives and autoloaders.
http://www.techonline.com/community/ed_resource/feature_article/20663   (2978 words)

  
 A General-Purpose File System For Secondary Storage
All physical addressing of a multilevel complex of secondary storage devices is done by the file system, and is not seen by the user.
A storage allotment is defined as the amount of information which a particular account is allowed to keep in the on-line storage system at one time.
The storage management module insures that an adequate amount of secondary storage is available to the basic file system at all times.
http://www.multicians.org/fjcc4.html   (10042 words)

  
 SECONDARY STORAGE DEVICES
SECONDARY STORAGE DEVICES are used for the long term storage of data.
Secondary storage media is useless until it is FORMATTED.
The internet is also being used as a secondary storage device for many businesses.
http://www.angelfire.com/sc/cpt101/secstorage.html   (532 words)

  
 SECONDARY STORAGE
Storage capacity is unquestionably one of the most valueable assets of the computer.
Diskettes range from a common Personal computers floppy disk (1.44MB of storage) to larger capacity disks such as those used with ZIP Drives (100MB of storage).
VARIOUS MEDIA There are two main catagories for secondary storage media Magnetic and Optical.
http://oz.plymouth.edu/~budhp/BU324/storage.html   (279 words)

  
 C:\BELLBO~1\COMPSR&E\HTMFILES\00000464.HTM
The secondary computer program may also cause data to be transferred into the secondary storage unit from the primary instruction register and can also cause information to be transferred into the primary instruction register from a location in the main memory.
The secondary storage unit is also capable of being addressed directly by the primary computer.
Associated with the secondary computer is the secondary storage unit which consists of 60 storage locations containing 16-bit words.
http://research.microsoft.com/users/gbell/Computer_Structures__Readings_and_Examples/00000464.htm   (567 words)

  
 Computer Memory
The part of primary storage where certain critical instructions are safeguarded because the storage is nonvolatile and the instructions can be read only by the computer and not changed by the user.
A form of secondary storage on which data are recorded by tiny holes burned on the surface of a reflective platter and are read by another laser in the computer's disk drive.
It is the part of primary storage that holds a software program (or a part of it) and small amounts of data when they are brought from secondary storage.
http://www.personal.psu.edu/users/k/j/kjs269/computermemory.html   (1011 words)

  
 High-Tech Dictionary Definition
Storage other than the computer's internal memory (RAM); external storage, such as disk or magnetic tape.
http://www.computeruser.com/resources/dictionary/definition.html?lookup=4188   (16 words)

  
 Storage Networking World Online - Evaluating Opportunities: Moving data between storage tiers
A new tier in the storage hierarchy has firmly taken root: "Secondary storage." Secondary storage is defined as disk storage that is less expensive and lower performing than primary disk storage.
The better solution is to make copies of data on the secondary storage from primary storage in the normal disk format, and allow recovery through appropriate means, including mounting file systems for individual file recovery or through application recovery routines.
Using secondary storage devices has created another tier in the storage hierarchy and has underscored the need for automated movement of data.
http://www.snwonline.com/behind/evaluating_opportunities_12-08-03.asp?article_id=331   (905 words)

  
 [No title]
Introduction page 211 Secondary storage devices are used to save, to back up, and even to transport files consisting of data or programs from one location or computer to another.
Data is stored on secondary storage in digital or machine code, so it doesn’t need to be translated from the 1s & 0s when it is sent to the CPU for processing.
Storage page 212 RAM (Random Access Memory) is called primary storage since it is used directly by the CPU for processing data and program instructions.
http://www.calstatela.edu/faculty/msabet/oleary/2006/IM/comp_essentials/CE06_IM08.doc   (2129 words)

  
 Storage magazine (Aug 2004) : Prime time for secondary storage
There are two motivations for adding secondary storage to an environment: improving data protection and making more cost-effective use of installed storage systems.
Depending on a company's business environment and the currently installed equipment, secondary storage may just as easily be an older network-attached storage (NAS) box or a SAN array, basically any storage device that performs at a lower level than what's required for critical applications.
Large storage vendors, such as Hitachi Data Systems (HDS) and Sun Microsystems Inc., are taking steps to help improve the reliability of SATA disks, or at least to take some of the unpredictability out of their failure.
http://storagemagazine.techtarget.com/strgFeature/1,291266,sid35_gci999900_login,00.html   (1594 words)

  
 SECONDARY STORAGE
The best part of secondary storage devices is that they have the ability to record information so that the user can look at it again both on the same computer as well as others.
First, let me explain what secondary storage is. Secondary storage devices are used for long-term reservoirs for data, and include such magnetic tape, magnetic disks, and optical disks, and their respective drives.
With technology this method of secondary storage has changed dramatically, so that now a great deal of it is digitized, and the tape cartridges have become much smaller, but still they have been phased out greatly.
http://home.sandiego.edu/~sgrueser/handson_5.html   (856 words)

  
 Health Management Technology: Keeping data storage healthy: University of New Mexico Health Sciences Center takes ...
HSLIC provides network storage to all users, including some who back up their hard drives to the network and many who generate huge quantities of research data: statistical files, PowerPoint files, medical images, numerous databases and other large files.
In most cases, primary storage files that had not been modified in the last year would be sent to secondary storage.
All of its 8 TB of RAID 5 storage is locally attached, without using a storage area network (SAN) or a network-attached storage device.
http://www.findarticles.com/p/articles/mi_m0DUD/is_4_25/ai_n5992740   (1476 words)

  
 DSstar: Online Data Protection Solution Redefines Secondary Storage
The storage address for any data element stored in the Axion system is generated by an analysis of the data itself, in a process that ensures the authenticity of the data.
Axion uses hard-disk storage to deliver online accessibility for all protected data, while its highly efficient software reduces the amount of data stored and moved over networks by up to 99% compared to conventional solutions.
"Secondary storage accounts for 80% of the data in a typical enterprise, but the limitations of tape storage have restricted the ability to access that data.
http://www.taborcommunications.com/dsstar/02/1022/104949.html   (773 words)

  
 secondary storage Computer Encyclopedia Enterprise Resource Directory Complete Guide to Internet
Programs and data stored in secondary storage must first be loaded into main memory before the processor can use them.
Secondary storage includes {hard drives}, {magnetic tape}, {CD-ROM}, {DVD drives}, {floppy disks}, {punch cards} and {paper tape}.
Reading and writing these registers can cause the device to perform actions like reading a block of data off a disk or rewinding a tape.
http://jaysir.com/computer-encyclopedia/s/secondary-storage-computer-terms.htm   (136 words)

  
 Jim Forrester - Secondary Storage Options
Again, secondary storage must be available to backup these large files, as well as offer a convenient means of portability between individual computers.
A number of different storage devices have evolved for the PC, using magnetic, optical and magneto optical technology.
Optical storage is a different technology that provides a growing option for long term back up of data storage.
http://home.rochester.rr.com/jforrester/0602410.htm   (2221 words)

  
 SECONDARY STORAGE
Instead, secondary (auxiliary) storage is needed to permanently save data and programs until they are needed, at which time the computer will load them from secondary storage into primary memory.
The traditional memory hierarchy, which ranks storage methods on their storage capacity, access time, and storage cost, is based on the speed differences between the CPU and other parts of the computer.
The general term for the secondary storage containers of data and programs is "files"; however, the term is so general that it has many, often confusing, uses.
http://faculty.frostburg.edu/cosc/htracy/cosc100/PERIPHERALS/SecStore.htm   (3528 words)

  
 Lecture 3. Secondary Storage Devices
We will focus on secondary storage since the collections of data in databases are usually both too large to fit in primary storage and must be persistent.
The Mercury jukebox takes a maximum of four seconds to exchange and load a disc into a drive, 2.5 seconds to spin up and access the data and 10 seconds to transfer a 6.0 MB file to the computer or server.
Jukeboxes of optical disks are becoming popular for storing really, really large collections of data.
http://www.cs.jcu.edu.au/Subjects/cp1500/1999/LectureNotes/lect3-storage/node1.html   (620 words)

  
 Industry's First Storage Security Appliances For Primary And Secondary Stored Data Protection Now Available
NeoScale Systems, Inc., a leading provider of enterprise storage security solutions for the burgeoning networked storage and data storage management markets, today announced the availability of its enterprise-class storage security appliances which uniquely address requirements for protecting data in both primary and secondary storage.
Enterprise storage strategies are driven by requirements for greater capacity, consolidation, accessibility and availability.
NeoScale CryptoStor has undergone extensive performance, interoperability, and reliability testing with leading storage software applications and hardware devices.
http://www.neoscale.com/English/Collaterals/Editorial_Coverage/2003/20030303_First_CTN.html   (981 words)

  
 Secondary storage management
Secondary storage management is a classical feature of database management systems.
The application programmer should not have to write code to maintain indices, to allocate disk storage, or to move data between disk and main memory.
Thus, there should be a clear independence between the logical and the physical level of the system.
http://www.cs.cmu.edu/People/clamen/OODBMS/Manifesto/htManifesto/node12.html   (132 words)

  
 NuView® UNVEILS FILE LIFECYCLE MANAGEMENT FOR NETWORKED STORAGE ENVIRONMENTS
FLM provides a simple and automated means for moving files between primary and secondary storage devices, enabling the creation of tiered storage architectures.
Through its intelligent policies, management automation, and centralized web-based operation, FLM simplifies the creation of tiers of storage, enabling enterprises to optimize existing storage investments and leverage lower-cost secondary storage platforms.
NuView, Inc., headquartered in Houston, TX, is a leading provider of storage management solutions that simplify the management of distributed file storage.
http://www.nuview.com/news/releases/FLM_100703.htm   (781 words)

  
 New Serial ATA systems slide into secondary storage role
But while the technology is the main attraction in several new "enterprise class" storage systems, most vendors admit that it's role in the data center will be as an option for secondary storage.
One of the major new forces in storage that is coming into its own at the Storage Networking World Fall 2003 conference in Orlando is low cost disk drive technology based on the serial ATA (SATA) standard.
The new systems are designed for midrange and enterprise application environments needing lower cost storage and are willing to sacrifice some performance without losing the availability, data integrity and features currently achieved with Fibre Channel based storage systems.
http://searchstorage.techtarget.com/originalContent/0,289142,sid5_gci934125,00.html   (941 words)

  
 How to Choose a Secondary Storage Drive for Your Computer - eHow.com
Secondary storage provides you with more room and the possibility of backing your files up.
Determine the quantity and size of the files you will be backing up from your computer.
How to Choose a Secondary Storage Drive for Your Computer
http://www.ehow.com/how_3152_choose-secondary-storage.html   (493 words)

  
 Jan's Computer Basics:6-1 Storage
Auxiliary storage holds what is not currently being processed.
These memory chips are the fastest, but most expensive, type of storage.
For Main Memory, computers use RAM, or Random Access Memory.
http://www.jegsworks.com/Lessons/lesson6/lesson6-1.htm   (196 words)

  
 Disk Arrays Gain in Use for Secondary Storage - Computerworld
Relatively inexpensive secondary disk storage is gaining a significant foothold in corporate data centers, according to a survey of more than 1,000 IT managers that's due to be released next month.
Over the past 12 months, vendors such as EMC Corp., Network Appliance Inc. and Storage Technology Corp. have released ATA-based disk arrays for storage of near-line data, snapshot copies and information that will eventually be archived on tape devices.
But secondary disk storage typically involves less than one-fifth of a company's total data, said Farid Neema, president and CEO of Santa Barbara, Calif.-based Peripheral Concepts.
http://www.computerworld.com/hardwaretopics/storage/story/0,10801,80718,00.html   (1171 words)

  
 "With our renewed focus on secondary storage, especially tape drives, we plan to be the top contender in this space ...
To meet these challenging demands, Quantum is leveraging new storage architectures, transport protocols and operating systems that efficiently and cost-effectively manage, store and protect valuable digital assets.
In this environment, secure data storage has evolved from merely an IT concern to a mission-critical business success factor.
He explains how the near-hibernation of Quantum is now over, as the company is all set to take a quantum leap in its overall business.
http://www.dqchannels.com/content/channelchief/105081801.asp   (1045 words)

  
 InfoStor - Avamar offers disk-based backup alternative
At Storage Networking World next week, end users will get a first-hand view of a secondary storage appliance from Avamar Technologies that could, with the right OEM support, change the way users back up, restore, and archive data.
What makes Avamar's Axion different from competing products from vendors such as Nexsan and Quantum is the way it approaches secondary storage from a pure disk, versus tape, perspective.
The system's content-addressed storage scheme reportedly allows for easy and infinite capacity scaling.
http://www.infostor.com/Articles/Article_Display.cfm?Article_ID=159389&CFID=847649&CFTOKEN=30689097   (589 words)

  
 Storage Vendors Introduce Alternatives to Tape
As customers abandon existing tape libraries for more efficient disk-based secondary storage options, vendors are responding by upgrading their archival, compliance and data life-cycle management offerings.
Improved decision making within storage environments is becoming critical to customers facing ballooning data, mounting regulatory pressure, and continued operational and cost inefficiencies of tape storage.
Meanwhile, fresh from its recent acquisition by Sun, Storage Technology Corp. last week introduced IntelliStore, its new intelligent-archive hardware and software suite designed to help businesses capture and manage data as it is archived.
http://www.eweek.com/article2/0,1759,1827195,00.asp   (716 words)

  
 Mapper
This translation is accomplished by using a directly indexed table called the page table which identifies the location of all the program's pages in the main store.
The mapper function must be very fast if it is not to substantially increase the running time of the program.
If the page table reveals that the page is, in fact, not resident in the main memory, the mapper issues a page fault to the operating system so that execution is suspended on the process until the desired page can be read in from the secondary store and placed in main memory.
http://cne.gmu.edu/modules/vm/purple/mapper.html   (149 words)

  
 Primary and Secondary Storage (Module G05c) L. Krieg, Washtenaw
Memory is the computer's working storage: it serves as its work table or desk.
The most common types of storage used with computers now
On a simple microcomputer: about 233,000,000 characters, or about 60,000 pages of typing, to the CPU each second (for a 233 mHz Pentium-based computer)
http://courses.wccnet.edu/computer/mod/g05c.htm   (419 words)

  
 Secondary Storage
  By minimizing the storage space for sequences of files and eliminating redundancy with the Content Addressed Storage architecture, the Axion can easily scale to petabytes in capacity.
            Also noteworthy, the Axion’s purpose is to maximize storage as well as network efficiency.
Because in class we studied the effectiveness of the Redundant Array of Independent Disks, but Axion uses the Redundant Array of Independent Nodes to tolerate faults.
http://cs1.mcm.edu/~mcdonalw/abstract3.htm   (298 words)

  
 Winchester Systems Announces FlashDisk SATA; Simultaneous Primary & Secondary Data Storage, Scaling To 200 Terabytes
FlashDisk SATA is an integral part of the FlashDisk storage array family from Winchester Systems and is fully supported by its FlashConsole and FlashAlert storage management system, which provide a common management structure across all products including Fibre Channel, SCSI, and SATA data storage.
The SATA enclosure provides inexpensive, enterprise scale data storage capacity expansion for storage area networks and network attached storage, as well as direct attached storage environments, using highly cost effective SATA disk technology.
Winchester Systems provides network-attached storage, DAS direct attached storage and storage area network enterprise storage solutions.
http://www.tmcnet.com/usubmit/2004/jul/1054791.htm   (934 words)

  
 Storage Media
The drive and the storage space are separate
May be "fixed" to have a Red Book TOC
From the Figures on page 139, what is the function of the different levels of RAID array?
http://www.mtsu.edu/~jakins/4200/4200storagemedia.html   (198 words)

  
 Secondary Storage Management for Web Proxies
We identify as the single largest source of overhead the storage of each URL in a separate file.
To alleviate this file management overhead we propose a storage management method called BUDDY that stores several URLs per file.
every few minutes) write its metadata information on safe storage, so that in the case of crash it will lose only the work of the last few minutes.
http://www.ics.forth.gr/carv/r-d-activities/wwwPerf/USITS99   (6890 words)

  
 Workgroup Storage
They are optimized for the Solaris Operating System and are fully compatible with Sun StorEdge SAM-FS and QFS software.
The Sun StorEdge product family offers complete, yet compact storage solutions for workgroup environments.
Sun StorEdge products maximize performance and availability for workgroup applications and offer a flexible, cost-effective approach for growing storage demands.
http://www.sun.com/storage/workgroup   (564 words)

  
 Secondary storage
compute storage requirements disk capacity in bytes or logical records from specified characteristics
High storage capacity permits incorporation of indexes to improve seek performance
Seek performance and data transfer rate are about 1/10 comparable magnetic disks
http://www.cs.cofc.edu/~kozma/CSCI_335/LectureNotes/Ch3.html   (574 words)

  
 Secondary storage device
For example, a floppy disk drive or a hard disk drive is an example of a secondary storage device.
Also see: Floppy disk drive definitions, Hard disk drive definitions, Primary storage device, Storage device
A storage medium that holds information until it is deleted or overwritten.
http://www.computerhope.com/jargon/s/secostor.htm   (56 words)

  
 Installing Secondary Storage
Homework: "Secondary Storage: Physical Structure" adding vocabulary to your reference book
Homework: "Installing Secondary Storage" adding vocabulary to your reference book
Homework: "Booting Up" adding vocabulary to your reference book
http://www.nksd.wednet.edu/schools/nkhigh/staff/mrspalermo/cst/hardware/ss-installation/hard_drive_installation.htm   (413 words)

  
 CPU Primary and Secondary Storage
extends the storage capabilities of the computer system.
Second, data and programs in secondary programs do
use the storage location again for something else.
http://www.tpub.com/content/photography/14208/css/14208_80.htm   (358 words)

  
 Support Forums - secondary storage coeff
confiend part I used one value of average storage coefficient for both
From what I understand, always use the confined value (storage
value of specific yeild for both primary and secondary.
http://www.bossintl.com/forums/printthread/threadid/6677.html   (126 words)

  
 »»Finance-Software Reviews««
Home computers had a keyboard and secondary storage, and could be programmed by the user.
Videogames are similar to recorded music's stream of new titles, and relatively short life.
http://www.money-book-review.com/Finance-Software/Finance-Software_60.html   (3446 words)

  
 IKEA home Secondary storage
Different kinds of storage for different stages of your life.
IKEA has storage solutions for difficult spaces, such as the cellar, garage, attic and store room.
It's good storage, both for the things you use every day and the things you need to store for longer periods.
http://www.ikea.com/webapp/wcs/stores/servlet/CategoryDisplay?storeId=12&langId=-1&catalogId=10103&cattype=top&identifier=06514_irwtree003   (125 words)

  
 CS100 - Secondary Storage
One way to classify secondary storage is by its access method
When the specs for a CD-RW drive state that it is 12X x 2X x 24X, these numbers refer to the speed of the drive.
Therefore, we need a more permanent means of storing programs and data!
http://facultystaff.vwc.edu/~kames/sstorage.htm   (377 words)

  
 Computing Dictionary: S - secondary damage
Question.com > Computing Dictionary > S > S - secondary damage
Browse: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Help
http://www.question.com/computing_dictionary/alpha/s0.html   (84 words)

  
 Sony Recordable Media
IP surveillance and storage solutions with cameras and AIT data management, to securing each individual's information...
Sony allows you to effciently share data between workstations and various media sources, taking productivity to another level.
Click here to learn more about Sony 101.
http://b2b.sony.com/Solutions/category/recordable-media   (129 words)

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