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Topic: Block (data storage)

    Note: these results are not from the primary (high quality) database.

(WO 03/088044) DATA STORAGE DEVICE A host device into which the data storage device is loaded keeps track of the number of clusters constructing one block and the location of the first cluster of the block in the data storage device, and records data in units of a block. In the attribute information storing section of the data storage device, information representing the number of sectors in a block and the logical address of the sector at the boundary of the block is stored. (57) A data storage device is composed of a non-volatile semiconductor memory and an attribute information storing section. www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/88044.031023

Dictionary and Encyclopedia - "S" Listings By comparison, if a file storage access method was used (like SMB or NFS), the server would request data from a particular file, and the underlying operating system would be responsible for determining which disk and block contained that data. A SAN (Storage Area Network) refers to an area of a LAN that is specifically dedicated to data storage devices, such as disk arrays, tape libraries, and file servers. A SAN is distinguished from other ways of networking storage by the low-level block storage access method used. www.connect802.com /encyclopedia/enc-s.htm   (755 words)

Venti: a new approach to archival storage Venti is a building block for constructing a variety of storage applications such as logical backup, physical backup, and snapshot file systems. The system uses magnetic disks as the storage technology, resulting in an access time for archival data that is comparable to non-archival data. Concurrently, the pointer blocks of the old archive are examined to determine the fingerprint for the block at the same offset in the old version of the file. plan9.bell-labs.com /sys/doc/venti/venti.html   (8218 words)

Digital Legacy Data Storage System (DLDSS) -- Not chartered to sustain digital TOs -- Not chartered to negotiate contracts to obtain digital data - Responsible for providing the initial delivery of IPDF TOs for legacy data - Has developed a basic sustainment approach - Will assist fielding and sustainment efforts wherever possible - Is not a digital TO sustainment organization - Block Cycle Updates (BCU) are updates to sets of TOs that are distributed as a group on a single digital medium and released at a predetermined time www.pdsm.wpafb.af.mil /field/sustain.htm   (293 words)

DVD and CD ROM - Servers, Towers and Jukeboxes - Network Attached Storage from PrimeArray Differential block level data backup and mirroring to offsite or removable drives. Uses: Extra personal storage, Server or workstation backup, centralized information repository, online archival data, or disk-disk or disk-disk-tape backup. Benefit: Add terabytes of secure storage to your network in minutes without affecting anything else on your network. www.primearray.com   (346 words)

Computer storage article - Computer storage U.K. U.S. digital computer data interval time electrical power - What-Means.com The terms "storage" (U.K.) or "memory" (U.S.) refer to the parts of a digital computer that retain physical state (data) for some interval of time, possibly even after electrical power to the computer is turned off. Block access means that the disk is divided into normally equal-sized blocks which are accessed at random by the operating system. Historically, "memory" referred to "magnetic core memory" in the 1950s, and then to semiconductor-based storage in the 1970s, at a time when the fastest response times were for magnetic core, and then for semiconductor memory, respectively. www.what-means.com /encyclopedia/Computer_storage   (674 words)

InfoStor: Data storage and enterprise storage management news and info October 28, 2005—An IBM-lead group of nine storage hardware and software vendors surprised attendees at the Storage Networking World conference this week when they announced a plan to form a non-profit, open source community aimed at developing a heterogeneous, standards-based common storage management platform. October 24, 2005—At the Storage Networking World conference in Orlando this week, EMC will introduce an... InfoStor has teamed up with the leading industry analyst firms to present a series of webcasts that will provide valuable guidance to all enterprise storage professionals. infostor.com /Articles/...&ARTICLE_ID=89739&VERSION_NUM=1   (339 words)

ets.ca - Web Storage 1 gig secure online data storage for only $4.99/month. Host The Best launches a brand new Online Storage and File Sharing Services via the Internet, today launched Online Storage, an innovative new service that solves two of the most demanding problems faced by companies and... Try Xdrive online storage and backup today completely free. www.ets.ca /Web-Storage/all/search   (241 words)

System for controlling key storage unit which controls access to main storage - Patent 4589064 Key storage access requests are received from a processing unit or the main storage control unit by the key storage control unit whenever data is to be read from or written to a block of main storage. In the above-described key storage unit, when the data stored in a block of the main storage unit is read (fetched) by the central processing unit, the reference bit corresponding to that block of the main storage unit must be set to the logic value of "1". The main storage unit is divided into blocks and the key storage unit stores main storage protection keys, each of which corresponds to one of the blocks of the main storage unit. www.freepatentsonline.com /4589064.html   (6785 words)

Crash Control Since each log entry is relatively short, the system will normally buffer entries in primary storage until a full block of entries has accumulated, and then will write that block to the log, followed by updating the various database entries on disk. Conceptually, STABLE STORAGE is storage that is immune to any kind of loss (short of nuclear war or the like!) While no storage medium is totally immune to destruction of data, stable storage may be approximated in one of two ways: a. Data in non-volatile storage is generally not lost unless there is a catastrophic failure of the storage device itself (e.g. www.cs.gordon.edu /courses/cs352/lectures-2004/crashcon.html   (3346 words)

IP Storage: A review of iSCSI, FCIP, IFCP However, for block-level data that is stored as either direct-attached storage (DAS) or on a Fibre Channel storage area network (SAN), taking advantage of these benefits requires new transport protocols for moving that data over IP networks. The three IP storage networking transports are significantly different, but they all provide a common function: transporting block-level storage over an IP network. With the emergence of these products and standards, the Storage Networking Industry Association's (SNIA) IP Storage Forum is rising to the challenge of educating end users on the differences among the three data transport protocols. www.iscsistorage.com /ipstorage.htm   (3346 words)

Exchange Server and network-attached storage As network bandwidth, latency, data access protocols, and storage technologies continue to evolve, the gap continues to reduce between the performance and reliability that is attainable with locally attached devices versus network-attached devices. Block mode storage devices that have received a Designed for Windows logo through submission to Windows Hardware Quality Labs (WHQL) as "Storage/Raid controller" or "Storage/RAID system" have been shown to meet the requirements for block storage for the Windows platform and are therefore the most suitable storage devices for use with Exchange Server. A network-attached storage system is a file-based storage system that can be attached to an Exchange Server computer through the network redirector by using a file sharing protocol (such as server message block [SMB], Common Internet File System [CIFS], or network file system [NFS]). support.microsoft.com /?kbid=317173   (2128 words)

Virtual Storage Access Method In non-VSAM data management methods, the unit of data that is moved between memory and the storage device is defined by the block. Virtual Storage Access Method - VSAM - is a data management system introduced by IBM in the 1970s as part of the OS/VS1 and OS/VS2 operating systems. A data space is an area of the direct access storage device that is exclusively allocated for VSAM use. www.jaymoseley.com /hercules/vstutor/vstutor.htm   (11601 words)

TMformat.v.11pb.html The first four words of data are common to all block types, and contain identifying information. The format of MOXE telemetry is therefore constrained by the format of the ILMM storage blocks. MOXE produces a number of different types of data blocks, including science data, housekeeping data, and memory dump data. lheawww.gsfc.nasa.gov /users/padi/FSW/TMformat.v.11pb.html   (1734 words)

CEN 4500C - Data Link Control Block ACKs: On links with very large delay x data rate products (large frame storage capacity) and high error rates, block ACKs are sometimes used. Simplex links are often used as parts of a full duplex connection, and may be used for true simplex communication in sensor networks, for monitoring, and in broadcast radio and television. Multipoint links require addressing: if there is a distinguished node (a Master or primary station), and all communication that takes place either has it as the source or the destination, then only the address of the undistinguished (Slave or secondary) node need be included. www.cise.ufl.edu /~nemo/cen4500/data_link.html   (2380 words)

block - a Whatis.com definition It is a multiple of an operating system block, which is the smallest amount of data that can be retrieved from storage or memory. A block is a contiguous set of bits or bytes that forms an identifiable unit of data. 1) In some databases, a block is the smallest amount of data that a program can request. searchsqlserver.techtarget.com /sDefinition/0,,sid87_gci916318,00.html   (243 words)

Glossary If one instance modifies a data block that another instance needs, then whether a forced disk write is required depends on the type of request submitted for the block. Should a failure prevent modified data from being permanently written to the datafiles, the changes can be obtained from the redo log and work is never lost. The low-level software that handles the interface to peripheral hardware, schedules tasks, allocates storage, and presents a default interface to the user when no application program is running. www.cs.uvm.edu /oracle9doc/rac.901/a89867/glossary.htm   (5712 words)

Techworld.com - Virtual storage musketeers NetApp says the benefits of its approach include: 'heterogeneous storage consolidation, rapid provisioning, increased utilization and virtual cloning, near-instantaneous data recovery, disk-based backup, asynchronous and synchronous network independent replication for online disaster recovery, improved adherence to corporate governance requirements, virus protection, and integration with leading applications. The V-Series can virtualise storage across both Fibre Channel and IP SANs and also present the block-level SAN storage as file-level NAS storage. It's getting to the point now where are any enterprise storage utility provider needs to enable customers to use their multi-vendor arrays, or continue to buy them, while enjoying the benefits of disk virtualisation. www.techworld.com /storage/features/index.cfm?featureid=1307   (1283 words)

rfc172.txt The objectives of FTP are to promote sharing of files (computer programs and/or data), encourage indirect use (without login or implicit) of computers, and shield the user from variations in file and storage systems of different hosts, to the extent it is practical. However, as file transfer protocol requires the transfer of more than a single control transaction over the same connection, it is essential that hosts be able to send control transactions in either 'transparent block' (type B9) of 'descriptor and counts' (type BA) modes. The file transfer abort described here is different from the data transfer abort which is sent only by the sender of data. www.rfc-editor.org /rfc/rfc172.txt   (2395 words)

Network-attached storage - Wikipedia, the free encyclopedia A storage area network (SAN) is very similar, except it uses a block-based protocol and generally runs over an independent, specialized storage network. A host system that uses network attached storage uses a file system device driver to access data using file access protocols such as NFS or CIFS. A NAS Storage Element consists of an engine, which implements the file services, and one or more devices, on which data is stored. en.wikipedia.org /wiki/Network-attached_storage   (665 words)

Block - Wikipedia, the free encyclopedia In data storage, either in primary or on secondary storage, grouped data can occur in units known as blocks or buffer. In programming languages, a block (programming) forms a subdivision of a program that serves to group related statements, delimit routines, specify storage allocation, delineate the applicability of labels, or segment parts of the program for other purposes. A block (music) is a separate complete unit that is primarily not developed but instead used in various combinations, these may be contrasted or transformed, and each block may be broken into parts and developed independently. en.wikipedia.org /wiki/Block   (665 words)

Random Redundant Storage in Disk Arrays: Complexity of Retrieval Problems Random redundant data storage strategies have proven to be a good choice for efficient data storage in multimedia servers. These strategies lead to a retrieval problem in which it is decided for each requested data block which disk to use for its retrieval. In this paper, we give a complexity classification of retrieval problems for random redundant storage. csdl2.computer.org /persagen/DLAbsToc.jsp?resourcePath=/dl/trans/tc/&toc=comp/trans/tc/2003/09/t9toc.xml&DOI=10.1109/TC.2003.1228515   (590 words)

Classifications of internal storage Only one disk address is needed per block, and as a result, fewer gaps occur. Data can be read (retrieved) from or written (stored) into RAM just by giving the computer the address of the location where the data is stored or is to be stored. Consequently, you cannot put any of your own data or programs in ROM. www.tpub.com /neets/book22/92b.htm   (590 words)

block Block size (data storage and transmission) - In computing (specifically data transmission and data storage), block size indicates a nominal size, usually expressed in bytes o... Block was born in Brooklyn to Abraham Block, a CPA, and Ruth Block, a paralegal. Block party - A block party is a large informal public celebration in which many members of a single neighborhood congregate to observe a positive event of usually local... www.serebella.com /search/topic-block.html   (471 words)

Computer storage - Wikipedia, the free encyclopedia The terms "storage" refer to the parts of a digital computer that retain physical state (data) for some interval of time, possibly even after electrical power to the computer is turned off. Most operating systems store all programs and data on hard disk drives, which are inherently mutable storage devices. In disk storage, these are the two primary access methods. en.wikipedia.org /wiki/Computer_storage   (471 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. 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. Secondary storage devices are usually accessed via some kind of controller. jaysir.com /computer-encyclopedia/s/secondary-storage-computer-terms.htm   (136 words)

Computer storage - Wikipedia, the free encyclopedia The terms " storage " and " memory " refer to the parts of a digital computer that retain physical state ( data) for some interval of time, possibly even after electrical power to the computer is turned off. Most operating systems store all programs and data on hard disk drives, which are inherently mutable storage devices. An analogy is to think of the storage as human memory, with the hard disk as long-term memory, and the RAM as short-term memory. en.wikipedia.org /wiki/Computer_storage   (136 words)

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