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Topic: Data corruption

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	Data Corruption in Hard Disk Drives
		The physical corruption of the data can be due to several reasons one of which that are more common is the bad sectors.
		In the logical corruption of the data the data integrity check is to be made in comparison with the data that was present before the corruption.
		The logical corruptions of the data or the user information may be due to the many reasons like mishandling of the data, unintentional deletion of the data or the information, operating system corruption, data loss due to improper file system and many more.
	www.harddiskhome.com /data-corruption-hard-disk.html (581 words)

	Data corruption - Wikipedia, the free encyclopedia
		Data corruption refers to computer data that when transmitted it arrives at its destination is different when it was transmitted from the source.
		In cases where data corruption behaves as a Poisson process, where each individual bit of data has independently some low probability of being corrupted, data corruption can generally be detected by the use of checksums.
		In the event that data corruption is detected, it can hopefully be re-transmitted (as occurs in the TCP protocol) or re-copied from backups.
	en.wikipedia.org /wiki/Data_corruption (364 words)

	Corruption (disambiguation) - Wikipedia, the free encyclopedia
		Political corruption, or civil corruption is expressed through bribery, intimidatio], extortion, vote buying, destabilization, or influence peddling
		Data corruption, the receiving of data which is different from that which was transmitted or otherwise intended
		Corruption (linguistics) of language or a text into a broken form or a different meaning
	www.wikipedia.org /wiki/Corruption (121 words)

	Propylon CTO Article - Data corruption and data correction in an XML world (Site not responding. Last check: )
		A corrupt data file is one that is tainted, subverted, ruined, spoiled.
		On the other extreme, large chunks of data corruption can exist but still allow some use to be made of the data.
		With binary data, there is typically no way to look at the data outside of the application that created it.
	www.propylon.com /news/ctoarticles/040323_corruption.html (652 words)

	SATA Data Loss - RAID Servers
		The data corruption that may occur in the SATA RAID may be due to the problems incurred while the implementation of the SATA RAID.
		One is the physical level data corruption where in the data is corrupted due to physical corruptions or the data loss sustained due to the physical damage.
		The data corruption and the subsequent loss of the data should be avoided and not least the data back up procedures should also be followed.
	www.raid-data-recovery.net /sata-raid-data-corruption.html (536 words)

	XOsoft's MS Exchange Data Recovery and Data Protection Solution - Data Rewinder Exchange
		Data corruption, the source of most common server failures, is one of the greatest threat to any Exchange email infrastructure.
		Data center administrators may configure a large number of highly granular data protection and rewind scenarios, several of which may even be applied to a single application server, allowing Exchange server data rewind to be limited to a particular storage group.
		Should data corruption occur, the centralized management GUI may be used to review all past I/O and application-specific events on a time scale, to quickly rewind data to any previous significant event (such as an application checkpoint) and to start the databases.
	www.xosoft.com /products/f_RewinderExchange.shtml (1101 words)

	data corruption - a Whatis.com definition
		Data corruption is the deterioration of computer data as a result of some external agent.
		Hazards to data integrity include not only computer-based problems such as viruses and hardware or software incompatibility, flaws, or failures, but also environmental threats such as power outages, dust, water, and extreme temperatures.
		To protect data from corruption, you should ensure that only authorized people have access to your data and that the physical environment is safe from environmental hazards.
	searchcrm.techtarget.com /gDefinition/0,294236,sid11_gci869622,00.html (112 words)

	Solving Oracle Data-Block Corruption
		This message tells you that somewhere in your database, a block of data has been corrupted (at the byte level) in such a way that Oracle7 causes the internal exception to be raised each time a SQL statement accesses (reads or writes) that block.
		You can easily select data that is stored in segment blocks that precede the corrupted block by using a full table scan (via a cursor fetching rows one by one and at the same time saving them to a new table).
		The presence of an index on the corrupted table segment greatly aids in restoring the data, since it not only supplies all the rowids but also holds column values of rows that cannot be accessed inside the table segment.
	www.fortunecity.com /skyscraper/oracle/699/orahtml/oramag/16tech.html (1454 words)

	Alliance Of Overclocking Arts - SATA Data Corruption
		Amongst those bugs was the SATA Data corruption issue that got quite some attention back then...
		Also according to Epox the Data corruption was fixed before the first release BIOS so that is why it is not stated anywhere in the changelogs...
		To verify if you have data corruption or not I have found it is best to use WinRAR 3.20 by www.rarsoft.com and compress (with store: i.e.
	www.aoaforums.com /forum/showthread.php?t=21550 (939 words)

	Data Corruption
		Desktop databases are prone to data corruption if any element of the network is malfunctioning.
		Data corruption can occur when multiple computers attempt to modify data in database files that are being accessed by another computer when a portion of the network is malfunctioning.
		Tracking and resolving data corruption errors generally requires consulting the computer systems manual or the manufacturers technical support.
	www.analyticalgroup.com /data_corruption.html (902 words)

	Correcting Data File Corruption - Basic
		Corruption in Quicken data files may occur for a variety of reasons.
		Corruption generally occurs when the information stored on your computer's hard drive or on diskettes becomes damaged.
		In some cases, when the file is located on a bad or corrupted location on a hard disk or diskette, copying a file to a new location will solve the problem.
	web.intuit.com /support/quicken/docs/w_corruptdata.html (701 words)

	Data Corruption and Prevention
		Data corruption, in short, is the deterioration or damage of computer data caused by human, hardware and software error.
		Data written on a bad sector can be corrupted when your disk is unable to accurately access the data residing in the damaged sector.
		Therefore data corruption can also be susceptible to hardware problems such as an overclocked PCI bus, erratic hard disk controller and dying RAM and motherboard.
	www.datarecovery.com.sg /data_recovery/data_corruption.htm (1084 words)

	Windows XP
		Unless you are experienced at troubleshooting corruption issues, you should read through all of these articles before deciding on a course of action.
		If the data on your hard disk is in trouble, DO NOT even attempt to boot the machine from its operating system.
		The Data Lifeguard Diagnostic Tools are used primarily for determining the physical condition of your hard drive.
	kadaitcha.cx /corruption.html (4181 words)

	'DB Validator' Tackles Data Corruption
		Kennedy said data corruption that occurs outside of the database is very difficult to detect and can be very expensive and time consuming to fix after the fact.
		Corruption can occur in any or all of the layers before writing data into storage; for example, while passing through the operating system, channel adapter, or network.
		In these cases, since the output data is written without error into the storage, the companies say the database cannot detect the corrupted data until it tries to read the data, at which time, a read error occurs and the system stops.
	siliconvalley.internet.com /news/article.php/1449641 (620 words)

	Data corruption: the silent Y2K killer - Computerworld (Site not responding. Last check: )
		But, ironically, some organizations learned about long-term data corruption problems in their databases only as they began working on their Y2K remediation efforts.
		But they may be fooling themselves; the odds of avoiding corruption in a database with 10 million records that has been running for 10 years are small.
		There are commercially available data verification packages, and some organizations have developed their own programs to minimize data corruption.
	www.computerworld.com /printthis/1999/0,4814,37293,00.html (579 words)

	EMC: News Release: EMC and Oracle Team to Safeguard Customers Against Data Corruption (Site not responding. Last check: )
		EMC and Oracle take data protection to a new level, reducing the risk of data corruption, business interruption, and time-consuming recovery by preventing corrupted data from spreading across an information storage network.
		Data corruption can have catastrophic effects on any business, potentially crippling operations during the many hours it can take to repair the database.
		This backed-up data may only be a few hours old, but in some cases, may be days or weeks old, which can drastically slow down a business.
	www.emc.com /news/press_releases/viewUS.jsp?id=1144&printtest123=PRINTABLE (797 words)

	Data Corruption
		Since the data in the item may not be all there, the item can be deleted and sel-restored from a back-up tape.
		At a low level the system has received an instruction to execute an op code and has discovered that the pointer to the op code is not correct or that the op code is garbage.
		This corruption could be in the DATA ABS, or in memory.
	www.geocities.com /pick911/data_corruption.htm (1562 words)

	Data Corruption Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: )
		Looking For data corruption - Find data corruption and more at Lycos Search.
		Also: Avoiding corrupt data, convert to VB/SQL, & run app on Intra/Internet.
		Find data corruption - Your relevant result is a click away!
	www.fburg.com /encyclopedia/Data_corruption (530 words)

	Data recovery solution provides solid corruption protection (Site not responding. Last check: )
		Today, data is recognized as a valuable corporate asset, and the organization’s investment in storing data plays a strategic role and affects the bottom line.
		One company addressing the changing data backup and recovery concerns of users is Vyant Technologies (www.vyanttech.com), a Fairfax, Va. developer of software products for enterprise data protection, data recovery and storage management.
		Data corruption protection is provided as RealTime records all transactions in realtime without overwriting the previous data.
	www.serverworldmagazine.com /monthly/2002/10/levine.shtml (1199 words)

	XOsoft MS SQL Recovery Solution for SQL Database Recovery - Data Rewinder SQL
		Information managers regard data corruption, the source of most common server failures, as the greatest threat to their Microsoft SQL information assets.
		In the event of a data interruption, XOsoft's Enterprise Rewinder SQL database recovery* solution allows administrators to automatically reconstitute the data in reverse order to a point before it was corrupted or lost.
		Data center administrators may configure a large number of highly granular data protection and rewind scenarios, several of which may even be applied to a single application server, allowing MS SQL server data rewind to be limited to a particular storage group.
	www.xosoft.com /products/f_RewinderSQL.shtml (1117 words)

	Wrong faxing due to apparent data corruption in the FM DB's - Data Techniques Support Forums (Site not responding. Last check: )
		Data Techniques Support Forums » FaxMan » Using the FaxMan SDK » Wrong faxing due to apparent data corruption in the FM DB's
		Turns out they had some cases in their print code where several print jobs would go into the same fmf file and it would be sent to a customer who would then get their fax pages along with the pages from the other job.
		However, the fax they show it sent, and the one in the memo field is definitely not the correct document accoridng to the rest of the address data.
	www.data-tech.com /forums/ShowPost.aspx?PostID=3596 (1130 words)

	Detecting and Repairing Data Block Corruption (Site not responding. Last check: )
		If data block corruption is limited to a subset of rows, another option is to rebuild the table by selecting all data except for the corrupt rows.
		Assuming the data is available from another source, drop, re-create and re-populate the object.
		At this point, the corrupted block has not yet been marked corrupt, so this is the time to extract any meaningful data.
	www.cs.umb.edu /cs634/ora9idocs/server.920/a96521/repair.htm (2541 words)

	Lytec Data Corruption Repair (Site not responding. Last check: )
		Common indicators of data corruption are evident in messages like “Error level 2 in the patient.dbp file” or “Error level 5: The record has a key field containing a duplicate key value.” Also, you may find inconsistencies in your data that you just cannot explain (i.e.
		Although difficult to resolve, usually data corruption is caused by faulty hardware or poor data entry but fortunately Lytec data corruption is reversible.
		However, if we see that the problem is Lytec data corruption, we can then encrypt your data and upload it to our server, repair it, and install it back in your server in a relatively short period of time.
	www.dabbsco.com /pages/lytec/medical/lytec_data_repair.htm (232 words)

	Data Recovery software recover deleted windows partition hard disk files pen drive digital Pictures
		Digital camera data recovery software is helpful in retrieving and restoring accidentally deleted formatted or erased digital picture still photo image even if digital media file system is corrupted and you can not access it or the memory card being pulled out while the camera was on or digital camera Reset operation performed.
		Recover data lost due to logically corrupted hard disks, inaccessible drive letter volumes, partition table format, physical or logical errors caused from NTFS NTFS5 file partitions, or data loss after accidental files and folders deletion, invalid use of Windows disk management utilities, fdisk or other similar system utility tools.
		Data Doctor Recovery for Pen Drive data retrieval software utility restore deleted or lost files folders music, pictures, video and all other type of file or directory data from formatted damaged logically bad crashed USB Pen Drives (also popular as USB Drive, Thumb Drive, Key Drive, Flash Drive, Compact Drive, Memory stick, Smart Drive etc).
	www.datadoctor.biz (1981 words)

	Linux: Data corrupting ext3 bug in 2.4.20 (Site not responding. Last check: )
		Andrew Morton [interview] posted on the lkml, "In 2.4.20-pre5 an optimisation was made to the ext3 fsync function which can very easily cause file data corruption at unmount time".
		However, it is a data corruption bug so you should double-check that you use either "data=ordered" or "data=writeback" as your ext3 mode of operation.
		In data=journal mode the data is left dirty in memory and the unmount
	kerneltrap.org /node.php?id=515 (549 words)

	Re: harversiondata table data block corruption
		We encountered the same "data block corruped" problem that Vincent explained at the beginning of this issue.
		We would then use "delete version" which removed the corruption (and the data of course).
		Using this process, we rapidly tracked down the corrupted blocks in only half an hour by changing the ranges (kind of like a binary search).
	www.cmcrossroads.com /ubbthreads/showthreaded.php?Number=21118 (552 words)

	STUREC.com -- How to recover from data corruption
		Data/Index files are said to be "corrupt" if the data in the file is not arranged in the expected format, or if there is invalid data in the file.
		By far, the most common type of corruption is called "Cross-Linking", which is essentially a clerical-error on the Operating System's part where a particular location on the hard disk is marked as belonging to multiple files.
		In many cases we are able to resurrect corrupted data files, but there is a charge for this service.
	www.sturec.com /help/general/corruption.htm (334 words)

	Hard Drive Data Corruption
		Unless the cause is a crash that deviates from sane file management, these situations will corrupt data by interrupting sane file system operations.
		Thus the journalling and rollback feature of NTFS is touted as making data corruption a thing of the past, and thus the assumption that mismatched FAT errors are safe to auto-fix by blindly copying one FAT copy over the other.
		As you can see, the most "interesting" corruption patterns are often consequent to flaky hardware other than the hard drive itself - a good reason to avoid overclocking, dodgy hardware and carry (and use) multiple RAM diagnostic utilities.
	users.iafrica.com /c/cq/cquirke/baddata.htm (2161 words)

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