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Topic: Direct attached storage

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  Direct Attached Storage - Wikipedia, the free encyclopedia
Direct Attached Storage (DAS) refers to a digital storage system directly attached to a server or workstation, without a storage network in between.
It is mainly used as a term to differentiate non-networked storage from SAN and NAS.
DAS controllers also enable shared storage access, which permits multiple servers (usually no more than 4) to acccess the same logical storage unit, a feature that is mainly used for clustering.
en.wikipedia.org /wiki/Direct_attached_storage   (372 words)

 Network-attached storage - Wikipedia, the free encyclopedia
Network-attached storage (commonly abbreviated to NAS) systems are generally computing-storage devices that can be accessed over a computer network (usually TCP/IP), rather than directly being connected to the computer (via a computer bus such as SCSI).
A storage area network (SAN) is very similar, except it uses a block-based protocol and generally runs over an independent, specialized storage network.
NAS was developed to address problems with Direct Attached Storage, which included the effort required to administer and maintain "server farms", and the lack of scalability, reliability, availability, and performance.
en.wikipedia.org /wiki/Network-attached_storage   (514 words)

 Direct Attached Storage (DAS) | INLINE Corporation
Direct Attached Storage or DAS is a storage device that connects directly to a single server.
The result is that performance of direct storage is not as high as that of networked storage.
However, on a small scale, direct storage is much simpler to administer since you only have to deal with one server connected to the storage device.
www.inlinecorp.com /products/products_DAS.htm   (251 words)

 FIBRE CHANNEL DNAS-FC Direct Network Attached Storage - Fibre Channel
A Direct Network Attached Storage storage partition is the area on the the Direct Network Attached Storage unit which is reserved for user data.
Direct Network Attached Storage units feature a number of redundant elements to enhance the operational fault tolerance of the units.
Direct Network Attached Storage units allow servers to concentrate on running applications such database, messaging, rather than managing file I/O. The network performance of Direct Network Attached Storage units can be further enhanced via the addition of extra network ports on the Direct Network Attached Storage units.
www.iodomain.com /dnas-fc.htm   (697 words)

 ZyckoStorage Direct Attached Storage   (Site not responding. Last check: 2007-10-08)
Typically DAS is a disk drive or disk subsystem which is either in the same enclosure as the server or attached by a short heavy cable.
Direct Attached Storage (DAS) is normally connected to the server which ‘owns’ it, by a SCSI bus.
Increasing the available storage space can mean either adding a server with its own storage to a network or bringing down a server and reconfiguring the disk system.
www.zycko.com /storage/architectures/DAS/DAS.asp   (289 words)

 Integrated Solutions - A Sneakernet?! You're Kidding, Right?   (Site not responding. Last check: 2007-10-08)
If direct attached storage is giving you backup fits (if it hasn't, it will), centralize and automate your tape drives.
When your server and storage infrastructure was in its infancy, you could probably manually manage your nightly backup operations.
So, a continued reliance on direct attached storage, let alone the manually operated sneakernet version, is out of the question.
www.integratedsolutionsmag.com /Articles/2003_06/030605.htm   (456 words)

 [No title]
Storage is a critical aspect of any successful modular compute solution.
Direct Attached Storage is necessary although often difficult to manage and less reliable.
Fibre Attached Storage (FAS) is regarded as the most reliable type of storage available and is appropriate for mission critical applications where a large amount of storage is required.
www.rlx.com /print.php?se=storage&id=0   (500 words)

 CIOL : Storage : Storage Topologies: An analysis of DAS,NAS ,SAN   (Site not responding. Last check: 2007-10-08)
Direct Attach Storage (DAS) can only scale along with the server that it is attached to, whereas SANs allow flexibility to use and scale the increased information servers".
As a result, storage devices that serve data directly over a network are referred to as Network Attached Storage (NAS) and are far easier to connect and manage than DAS.
Finally, given the fact that storage requirements are likely to double every twelve months, manageability of the information explosion is best done through scaleable implementations of SAN, as part of the Enterprise storage networks.
www.ciol.com /content/search/showarticle1.asp?artid=35457   (1384 words)

 direct attached storage   (Site not responding. Last check: 2007-10-08)
direct attached storage direct attached storage direct attached storage solution direct attached storage solution and also what is direct attached storage.
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DAS - Direct Attached Storage Direct Attached Storage or DAS is a storage device that connects directly to a single server.
adjile.com /Adjile-direct-attached-storage/direct-attached-storage.html   (774 words)

 Direct Attached Storage   (Site not responding. Last check: 2007-10-08)
Direct Attached Storage, or DAS, is the most basic level of storage, in which
storage devices are part of the host computer, as with drives, or directly
Direct Attached Storage is ideal for localized file sharing in environments with a
www.globaldirectsvcs.com /Direct_Attached_Storage.html   (188 words)

 Direct-attached storage (DAS) solutions and service providers for enterprises   (Site not responding. Last check: 2007-10-08)
DAS, SAN and NAS have dominated the storage market as separate technologies for the past few years and certain benefits are derived from each.
When attached to the server, the storage unit is seen as a single drive.
However, on a small scale, direct storage is much simpler to administer, as only one server connected to the storage device has to be dealt with.
www.onestopclick.com /Directory/Storage-/-Backup-DAS/29-192-201-201.html   (735 words)

 Aberdeen - Server Rackmounts, iSCSI SAN Storage, NAS Servers, Server Chassis, Direct Attached Storage
As Network Attached Storage, the AberNAS is the solution of choice to provide the power and features to support today’s most dynamic and demanding network infrastructures.
As an innovator in network attached storage solutions, Aberdeen is proud to be the first company to provide both Linux-based NAS and Windows-based NAS solutions.
If storage isn't your main concern with the quad processing power and conserving space is then either the SATA or SCSI 2U quad Opteron Aberdeen Stonehaven A234 is the optimal choice.
www.aberdeeninc.com   (1300 words)

 direct-attached storage - a Whatis.com definition   (Site not responding. Last check: 2007-10-08)
Direct-attached storage (DAS) is computer storage that is directly attached to one computer or server and is not, without special support, directly accessible to other ones.
The main alternatives to direct-attached storage are network-attached storage (NAS) and the storage area network (SAN).
In an enterprise, providing for storage that can be shared by multiple computers and their users tends to be more efficient and easier to manage.
whatis.techtarget.com /gDefinition/0,294236,sid3_gci1108786,00.html   (169 words)

 Tiered Storage Solutions - Network Attached Storage - CCNY   (Site not responding. Last check: 2007-10-08)
By establishing partnerships with the storage industry leaders such as Blue Arc, Nexsan, nStor, and HP/Compaq, CCNY can assure you that your files are retrievable and secure.
NAS technology is dedicated storage that is relocated to its own independent platform, in turn increasing the speed and functionality of your network.
Since applications and storage are now on independent, the file server bandwidth is increased and file sharing in quick and easy.
www.ccny.com /products/storage.php   (275 words)

 direct attached storage definition - Small Business Computing Online Dictionary of IT Terms: Powered by Webopedia   (Site not responding. Last check: 2007-10-08)
Often abbreviated DAS, direct attached storage is the term used to differentiate non-networked storage from SAN and NAS.
In direct attached storage, the hardware is connected to an individual server.
There may be more than one server but storage for each server is managed separately and cannot be shared.
sbc.webopedia.com /TERM/d/direct_attached_storage.html   (150 words)

 Managing direct-attached storage   (Site not responding. Last check: 2007-10-08)
We are looking at Storage Central to help with some of the administrative reports, but that is all we have in the wing.
Managing direct-attached storage can be a daunting task, especially when there is no system in place to help understand what is really being stored on the environment in question.
In addition to the economies of scale that can be realized in moving to array-based storage, one can get the advantage of RAID-protected storage and storage-based data protection capabilities, such as SnapShots and backup capabilities that go far beyond that of locally connected storage.
searchstorage.techtarget.com /ateQuestionNResponse/0,289625,sid5_cid625683_tax294862,00.html   (531 words)

 ☞ storage - Computer Storage   (Site not responding. Last check: 2007-10-08)
Computer storage, computer memory, and often casually memory refer to computer components, devices and recording media that retain data for some interval of time.
The Original GOOGLE Computer Storage [Page and Brin] (1996) The development of the Google algorithms was carried on on a variety of Computers, mainly provided by the NSF-DARPA-NASA-funded Digital Library project at Stanford.
Storage refers to the media and methods used to keep information available for later use.
www.all-storage.info /computerstorage   (631 words)

 NAS (Network Attached Storage), iSCSI SAN (Storage Area Network) IP SAN & DAS (Direct Attached Storage) servers and ...
As with normal IP implementations, direct connection to the IP network requires responsibility for device discovery and connection establishment be undertaken by the end device.
A SAN (Storage Area Network) is an architecture designed to meet the requirement of networking data storage behind the server.
The SNIA (Storage Network Industry Association) definition of a SAN is: ‘A network whose primary purpose is the transfer of data between computer systems and storage elements and among storage elements.
www.cybernex.co.uk /Storage_overview.htm   (1677 words)

 Trimble Migrates from Direct Attached Storage to iSCSI
Trimble Migrates from Direct Attached Storage to iSCSI
Trimble traditionally relied on a direct attached storage (DAS) environment to support critical business applications such as MS Exchange, which provides messaging to the company's 2,000 worldwide employees, and Oracle 11i, the database maintaining Trimble's growing list of customers.
And hosting multiple versions of the company's database was proving to be wasteful on storage, leaving a significant number of dead, rotating disks and requiring the continuous addition of new servers.
www.enterprisenetworksandservers.com /monthly/art.php?693   (740 words)

 SATA DAS STORAGE - Direct Attached Storage Servers RAID - SCSI to SATA DAS Solutions
Direct Attached Storage is the data storage connection system which most people are familiar with.
Typically Direct Attached Storage (DAS) as the name suggests are disk drives or a disk subsystem which is either in the same enclosure as the server or an external unit attached by a short cable.
The CyberStore 316 DAS Direct Attached Storage RAID storage system incorporates dual-host channels and separate-bus architecture with a state of the art Intel IOP321 400MHz 64-bit processor.
www.cybernex.co.uk /das_scsi_sata_storage_servers.htm   (516 words)

 Storage   (Site not responding. Last check: 2007-10-08)
DAS is connected directly to the server, via a cable, enabling back up directly to the storage facility.
NAS is connected directly to the network, enabling the back-up of various servers onto one storage facility.
Most SANS are Fibre Channel Media, providing an any-to-any connection for processes and storage on that network.
www.switchit.co.za /main/storage   (147 words)

 .NET Magazine - Get the Most From Your Storage Investment
Shared storage is a radical departure from the traditional server/storage relationship.
Because the new server is the exclusive gateway to its attached storage, it must be managed individually to monitor storage utilization and to perform tape backups.
Shared storage cuts the thick umbilical cord of SCSI cabling and the exclusive ownership of storage by individual servers.
www.ftponline.com /wss/2003_05/magazine/features/tclark   (610 words)

 Direct-attached storage (DAS) solutions and service providers for mid-market businesses
Direct-attached storage (DAS) is a storage hardware directly attached to one computer or server.
We are knowledgeable in the application of DAS (Direct Attached Storage) and a host of storage management solutions.
Our aim from the start was to sell direct to the end user with dnuk.com being the focal point of our business.
www.onestopclick.com /Directory/Storage-/-Backup-DAS/28-191-195-195.html   (623 words)

 Server and Storage Consolidation - LeftHand Networks SAN Solutions   (Site not responding. Last check: 2007-10-08)
Because the LeftHand SAN will become primary storage for you application data, you'll be able to consolidate the number of application servers that you maintain in your environment.
Adding storage to the cluster is as simple as adding any other Ethernet device; the intelligence within SAN/iQ automates the process of adding capacity.
The IT staff was constantly in the data center addressing issues with the direct-attached storage or simply trying to manage the 20-plus DAS devices that stored all of the data flowing in from the Microsoft SQL Server and Exchange applications.
www.lefthandnetworks.com /technology/server_cons.php   (646 words)

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