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| | 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. | | | A special case is disk RAID arrays, where parity bits are commonly evaluated and stored (summed over the disk set for each given offset), and can be used to reconstruct the corrupted data in the event of the failure of a known single disk. | | | This is particularly important in banking, where an undetected bit-flip in a highly significant position could drastically affect an account balance, and in the use of encrypted or compressed data, where a bit-flip can make an extensive dataset unusable. |
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http://en.wikipedia.org/wiki/Data_corruption
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| | Propylon CTO Article - Data corruption and data correction in an XML world |
| | Corruption in digital data is a continuum of scenarios. | | | With binary data, there is typically no way to look at the data outside of the application that created it. | | | On the other extreme, large chunks of data corruption can exist but still allow some use to be made of the data. |
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http://www.propylon.com/news/ctoarticles/040323_corruption.html
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| | 'DB Validator' Tackles Data Corruption |
| | 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. | | | 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. | | | While data corruption in storage networks is rare, it can be costly if the problem goes undetected for some time. |
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http://siliconvalley.internet.com/news/article.php/1449641
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| | Correcting Data File Corruption - Basic |
| | 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. | | | In circumstances where a hard disk is not regularly maintained using Windows utilities (such as ScanDisk or Disk Defragmenter), files can lose integrity and become cross-linked, a situation where two or more files occupy the same physical space on the hard disk. |
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http://web.intuit.com/support/quicken/docs/w_corruptdata.html
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| | Solving Oracle Data-Block Corruption |
| | 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). | | | 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. | | | 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. |
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http://www.fortunecity.com/skyscraper/oracle/699/orahtml/oramag/16tech.html
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| | Data corruption: the silent Y2K killer - Computerworld |
| | There are commercially available data verification packages, and some organizations have developed their own programs to minimize data corruption. | | | I believe it's more realistic to assume that the data corruption problems will occur and that we might not see them for months or years after Jan. 1. | | | We need to develop extensive data auditing, data verification and data integrity programs and then use them periodically throughout 2000 and possibly beyond. |
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http://www.computerworld.com/printthis/1999/0,4814,37293,00.html
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| | EMC: News Release: EMC and Oracle Team to Safeguard Customers Against Data Corruption |
| | 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. | | | With EMC Double Checksum, EMC is delivering the first data integrity application under Oracle's new Hardware Assisted Resilient Data (HARD) initiative, a comprehensive program designed to detect and prevent data corruptions before being written to disk. | | | In the event that data is altered or compromised between the server and the Symmetrix, the system administrator can either take immediate action or initiate a follow-up repair procedure. |
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http://www.emc.com/news/press_releases/viewUS.jsp?id=1144&printtest123=PRINTABLE
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| | Data recovery solution provides solid corruption protection |
| | 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. | | | The RealTime immediate data restore software is compatible with Sun’s Solaris and IBM’s AIX operating systems, and is coupled with a site’s existing file backup solutions from Legato, Veritas or IBM, providing near zero restoration time. | | | With this patented Time Slide technology, the old time-consuming and error-prone task of rebuilding the database and restarting the computer is abolished and replaced with a straightforward and simple “undo” process. |
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http://www.serverworldmagazine.com/monthly/2002/10/levine.shtml
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| | XOsoft's MS Exchange Data Recovery and Data Protection Solution - Data Rewinder Exchange |
| | To achieve complete protection against data corruption, administrators need a data protection solution that is precisely tailored to MS Exchange data recovery and Microsoft Exchange servers, one that will enable quick time to recovery and minimal data loss. | | | Learn more about our data protection solution by downloading a trial evaluation of our MS Exchange data recovery software* or contact us for information related to your specific needs. | | | Our data recovery software* clients continuously capture application and database-specific writes and updates, such as checkpoints, log file rotations and errors, and store rewind logs of I/O-related events that result in changes to data or to file and directory attributes (i.e. |
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http://www.xosoft.com/products/f_RewinderExchange.shtml
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| | Detecting and Repairing Data Block Corruption |
| | Assuming the data is available from another source, drop, re-create and re-populate the object. | | | Any corruption that involves the loss of data requires analysis and understanding of how that data fits into the overall database system. | | | Of course, retrieving data in this manner depends on the amount of redundancy between the indexes and the table. |
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http://www.cs.umb.edu/cs634/ora9idocs/server.920/a96521/repair.htm
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| | 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. | | | In nearly all cases, file corruption is the result of a failure at either the Operating System (DOS/Windows) or the hardware level. | | | 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. |
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http://www.sturec.com/help/general/corruption.htm
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| | Data Corruption |
| | To correct this problem, clear the DATA ABS and SEL-RESTORE the DATA ABS from the Pick DATA diskettes or from a pseudo floppy. | | | Alternatively, there may be a situation where the system has run out of disk space, and you would like to allocate enough space in order to do a file-save. | | | If the system is shutdown or rebooted incorrectly, then the overflow table may become corrupted. |
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http://www.geocities.com/pick911/data_corruption.htm
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| | 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. | | | What is written within the file's data clusters is up to the application, but it is unlikely to write outside the file's data clusters, over internal file system structures, or outside the bounds of the | | | Various things can cause data on the hard drive to be corrupted in various ways. |
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http://users.iafrica.com/c/cq/cquirke/baddata.htm
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| | Wrong faxing due to apparent data corruption in the FM DB's - Data Techniques Support Forums |
| | One possible explanation is that a fax file might contain data for one that one fax. | | | We are slowly getting all the data we have asked for from this customer, but its hard work with them. | | | The FaxMan Log files are actually FoxPro DBF files so it is possible to look in them to figure out whats happening. |
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http://www.data-tech.com/forums/ShowPost.aspx?PostID=3596
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| | Lytec Data Corruption Repair |
| | Although difficult to resolve, usually data corruption is caused by faulty hardware or poor data entry but fortunately Lytec data corruption is reversible. | | | Using our Lytec Helpdesk, we can connect to your computer and diagnose the data error and sometimes resolve the problem in minutes. | | | Unfortunately, as with any database, data is always at risk of corruption and Lytec is no exception. |
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http://www.dabbsco.com/pages/lytec/medical/lytec_data_repair.htm
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| | Integrity protection for your data and programs |
| | The key to protecting your PC's programs and data against damage by a human being, buggy software, hardware glitches or other sources is to be able to check the integrity of all your files, CMOS data, and boot sectors. | | | With good data integrity protection, such drastic steps are not needed and hardware or software problems can be detected before they cause serious damage to the disk. | | | Sometimes this damage causes complete loss of a disk but more often this damage goes unnoticed or the user simply reinstalls some of the software on their PC and this fixes the mysterious problem. |
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http://www.stiller.com/integrit.htm
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| | RE: Data corruption problem |
| | disk data directly in a number of years, so it might be interesting to |
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http://www.lazydba.com/oracle/0__23780.html
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| | Bug 202 - XFS data corruption (very old bug!!!) |
| | Since XFS does not write data out to disk immediately unless you tell it to with fsync or an O_SYNC open (the same is true of other filesystems), you are looking at an inode which was flushed out to disk, but for which the data was never flushed to disk. | | | The only way of being sure that your data will get to the disk is using fsync in the program of sync after closing the program. | | | Maybe NVidia driver causes file corruption in some way (both closed and open source) or AGP and Athlon cpu. |
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http://oss.sgi.com/bugzilla/show_bug.cgi?id=202
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| | data corruption - White Papers, Webcasts, Product Information and Research Reports on data corruption |
| | Data profiling is the beginning of an effective data management strategy. | | | HP StorageWorks Reference Information Storage System is the only archiving product in the industry to deliver a total solution that includes all the hardware, software, and services needed to protect your reference information. | | | To keep pace with growing data demands and infrastructure complexity, businesses need a new architecture--one designed for extensibility and flexibility. |
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http://www.bitpipe.com/data/search?cp=bpres&cr=bpres&qg=VENDOR&qt=data+corruption
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| | Possible causes of data corruption in Visual FoxPro |
| | Data storage components: Storage devices should be checked regularly for errors and fragmentation. | | | File locking issues: If one user performs an action that results in a table's memo file being locked, and a second user attempts to open the same table and access the memo field information, the second user may open the memo file with an incorrect blocksize, resulting in memo file corruption. | | | Conflicting software: Software such as Antivirus packages, screen savers, and terminate-and-stay-resident applications (TSRs) can cause conflicts with Visual FoxPro that could cause data corruption. |
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http://support.microsoft.com/support/kb/articles/Q264/8/67.ASP
(460 words)
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| | Repairing data corruption on ISAM file systems from NT workstations. |
| | Data table corruption is usually caused by incorrect data sharing settings on workstations. | | | This FAQ listing is automatically generated from your service data by NetKeeper Help Desk Software or NetKeeper CRM software. | | | Check your workstation's data sharing settings and turn off and write caches or write delays. |
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http://www.netkeeper.com/faq/nk000000583.htm
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| | K7S5A M830LR Memtest86 Data corruption problem fix |
| | This makes the ZP resistance about 46 Ohms and generally solves the data corruption problem. | | | The lower ZP value changes the drive strength of the data signals going from the CPU to the 735 chip. | | | To fix this problem, add a 200 to 220 Ohm resistor in parallel to the 56 Ohm ZP resistor. |
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http://www.geocities.com/mrathlon2000/zp.html
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| | If data corruption occurs |
| | This is useful if the database is inaccessible, and you want to get to the data so you can use BCP or Transfer Management Interface to copy out the data. | | | If you have, for instance, a linkage problem in a table, you might be able to save the data in the table. | | | Note that it is always a good idea to do hardware diagnostics if you have corruption problems. |
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http://www.dbmaint.com/books_online/DbmaintIf_data_corruption_occurs.htm
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| | Physical Data Corruption (BDE error message) |
| | 8962 : $2302 : Corrupt file - other than header. | | | What does BDE error 35 (0023 hex) aka 'Physical Data Corruption' mean? | | | 8968 : $2308 : Corrupt or missing.VAL file. |
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http://www.delphifaq.com/fq/q0071.shtml
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| | Hipp Data Corruption Problem Problem |
| | known occurrence of data corruption is thought to be August 18 at 13:23. | | | time we do not know the specific error that caused the data corruption. | | | down or 2) data being deleted from the packet and binary zeroes |
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http://www.lanl.gov/hpss/SpecialTopics/Problem.Hippi.99Sep.html
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| | Accelerate Your Mac! - Reader Report on IBM Deskstar Data Corruption in B&W G3 rev 1 |
| | I then read your article that my a machine was probably a version 1 G3 and that there were data corruption issues when using slave drives with these machines. | | | A reader comments that even when used as a master drive (one drive only) the IBM 22GB Deskstar has data corruption problems with the rev 1's IDE chip. | | | I have read through all of your articles associated with this problem, and cannot find anything about having this problem with using just one drive in the blue and white G3. |
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http://www.xlr8yourmac.com/IDE/BWG3_rev1_IBMdeskstar.html
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| | Download details: Windows NT4.0 Patch: Data corruption accessing floppy drive during heavy system load |
| | Microsoft has released a patch that resolves an issue where under a heavy system load, access to a floppy disk drive may result in the following error message: System Process - No Disk There is no disk in the drive. | | | Windows NT4.0 Patch: Data corruption accessing floppy drive during heavy system load | | | Select "Save this Program to Disk" to copy the download to your machine for installation at a later time. |
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http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=9BAA9184-9412-42C3-B7EC-F32DB29D78D4
(237 words)
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| | NewsForge Possible data write corruption problem on Linux |
| | Andy Tai writes "According to this report on sr5tech.com, current GNU/Linux file systems (such as ext3 and reiserfs) suffer from possible data corruption on IDE drives with write-back caching turned on. | | | If something is written to the drive cache, the hardware responds with the data written answer. | | | I've been using the same reiser filesystem for 3 years without an UPS at home (plus having kids who sometimes just turn off the computer) and have never had any damage. |
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http://newsvac.newsforge.com/newsvac/03/02/21/0540225.shtml?tid=23
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| | NetApp Guards Against Oracle Data Corruption |
| | Network Appliance Inc. is developing a new data management product to help users avoid the disruptions caused by data corruption between Oracle Corp. databases and modular storage environments. | | | SnapValidator is designed to follow in step with guidelines from Oracle's HARD (Hardware Assisted Resilient Data) Initiative to halt data corruption before it occurs. | | | Although other large-scale storage vendors offer HARD-certified products—such as IBM's Shark Enterprise Storage Server or EMC Corp.'s Double Checksum for Oracle on Symmetrix—to ease data corruption, SnapValidator is driving the functionality deeper into lower-end storage enterprise architectures, said Juan Loaiza, vice president of systems technologies for Oracle, in Redwood Shores, Calif. |
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http://www.eweek.com/article2/0,1759,1753478,00.asp?kc=EWRSS03119TX1K0000594
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| | Alliance Of Overclocking Arts - SATA Data Corruption |
| | 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... | | | Raised highest CPU FSB up to 300 MHz for "user define mode" in SoftMenu. | | | 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. |
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http://www.aoaforums.com/forum/showthread.php?t=21550
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| | FIX: Large Cursor Causes Data Corruption with SQLEXEC |
| | Where possible, when you are using queries or views involving ODBC data sources containing large result sets, avoid moving other application windows in front of Visual FoxPro. | | | Also, avoid opening the Class Browser, the Project Manager, or the designers when you are using these queries or views. | | | Work with smaller cursors, bringing down a smaller subset of the data, unless it is necessary to retrieve of the entire table. |
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http://support.microsoft.com/support/kb/articles/q258/7/34.asp
(376 words)
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| | Correcting Data File Corruption - Advanced |
| | Frequently, simply exporting all of your data to a new file is not an acceptable solution due to the loss of information after the export. | | | Before following the steps and solutions outlined in this document, please try following the basic steps for Correcting Data File Corruption to correct your issue. | | | In some rare circumstances or as a last resort when other methods fail, it may be necessary to export the data from your original file and import it into a new file. |
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http://web.intuit.com/support/quicken/docs/w_corruptadvanc.html
(405 words)
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| | Linux: Data corrupting ext3 bug in 2.4.20 |
| | which can very easily cause file data corruption at unmount time. | | | The fix is to only apply the optimisation to inodes | | | 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. |
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http://kerneltrap.org/node.php?id=515
(549 words)
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| | Tech Support Forum - Anyone had Promise Data Corruption (any MoBo)? |
| | I now moved all my devices on the ICH5, but have obvioulsy noticed a bottleneck when transferring files to my BU drives (opposed to transferring between 2 different chipsets). | | | I thought this was where I learned about it to begin with! | | | I found the "Promise Data Corruption" I was referring to (that I read about elsewhere) was caused by the default "Write Back Caching" and caused issues with a power loss. |
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http://www.techsupportforum.com/printthread.php?t=10525
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| | OS X Panther Solutions |
| | Also see Item #5 and Item #8, below, for other reasons why you may not be able to successfully install OS X 10.3 Panther. | | | People are losing their Mail settings, iTunes Libraries, Address Books, etc. FileVault corrupts user's directories, and thus destroys all their user data, preferences etc. | | | Users with this problem get a "no mountable file systems" error message when they try to mount a disk image. |
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http://www.macattorney.com/panther.html
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| | 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. |
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http://whatis.techtarget.com/gDefinition/0,294236,sid44_gci869622,00.html
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| | Accelerate Your Mac! - G3 Internal IDE drive upgrade |
| | Each system/drive/cable setup should be verified however as reports on some brands are mixed but IBM and Western Digital drives seem to be the most commonly reported drives with data errors on BandW G3s without the latest new IDE chip. | | | And as you know, configuring DMA with Hard Disk SpeedTools is easily accomplished with simple pop-up menus. | | | So far I've had no problems and it was plug and play all the way with this early 10GB model Maxtor Diamondmax Plus drive. |
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http://www.xlr8yourmac.com/G3-ZONE/yosemite/IDE
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| | Data Corruption |
| | The app offers no complaints using the sqlexec statements but if I use VFP 'USE' to open a table, VFP complains that the table is corrupt and refuses to open the table. | | | Software > Fox VFP Queries sql > Data Corruption | | | All data access in my app is via sqlexec statements in prep for moving to sql server. |
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http://www.talkaboutsoftware.com/group/microsoft.public.fox.vfp.queries-sql/messages/10531.html
(149 words)
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| | Re: harversiondata table data block corruption |
| | 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). | | | We would then use "delete version" which removed the corruption (and the data of course). | | | ORA-26040: Data block was loaded using the NOLOGGING option |
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http://www.cmcrossroads.com/ubbthreads/showthreaded.php?Number=21118
(552 words)
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| | [BUG] 2.6.0-test4-mm1: NFS+XFS=data corruption |
| | If I use my client machine to sign RPM packages (rpm --addsign...), using rpm-4.2-16mdk, and the packages are on the XFS partition on the NFS server, about half of the packages are truncated by a couple hundred bytes afterwards (and GPG sig verification fails on those packages). | | | It's always the same packages that get truncated by the same amounts of data. | | | It doesn't matter whether I compile the kernel with gcc 2.95.3 or 3.1.1. |
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http://mail.nl.linux.org/linux-mm/2003-08/msg00176.html
(313 words)
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| | Hard Disk Data Corruption? |
| | The WD drive has error correction in it and the maxtor drive does not. | | | I dont know if this is related to your problem but it is an FYI that a lot of people dont knwo about. | | | So eventually when you try to write to the drive you will get data corruption. |
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http://www.ntcompatible.com/postprint122258.html
(72 words)
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| | Corruption (disambiguation) - Wikipedia, the free encyclopedia |
| | Corruption (linguistics) of language or a text into a broken form or a different meaning | | | Data corruption, the receiving of data which is different from that which was transmitted or otherwise intended | | | This is a disambiguation page — a list of articles associated with the same title. |
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http://www.wikipedia.org/wiki/Corruption
(121 words)
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| | Data Corruption |
| | If you are experiencing data corruption in your multi-user NT/2000/2003 server environment then it may be due to “OPLocks”. | | | Network or power interruptions WILL cause corruption if the data is open when this occurs. | | | For more details on "Netiquette" and data corruption visit CanCom’s web site. |
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http://cancomco.net/DataCorruption.htm
(198 words)
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| | Infothought: Data corruption attack on terrorist no-fly list? |
| | The evident lack of validation suggests a very simple data corruption attack which could use the list as a terrorist weapon itself. | | | The idea is simple: Take a low-level operative, perhaps one who has outlived his usefulness. | | | Infothought: Data corruption attack on terrorist no-fly list? |
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http://www.sethf.com/infothought/blog/archives/000686.html
(406 words)
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