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data recovery research papers




[PPT]Data Recovery Techniques - FSU Computer Science
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Data Recovery Techniques. By. Danny Seltzer. and. Evan Hollander. NOT a Data Recovery Technique. What is Data Loss? Data has accidentally been erased ...

[PPT]Data Recovery
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Data backup & Recovery - Data Recovery Group
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Everything your business needs to know but probably doesn't. The reality. The average company spends between $100,000 and $1,000,000 per year on data ...

Database Recovery
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Planning ahead is the most important aspect of data recovery. What to think about: How much can you afford to lose? How and where backups are stored ...

Hard Disk Data Recovery



Forensic data recovery from flash memory
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7AT Attachment (ATA) is a standard interface for connecting storage devices such as hard disks and CD-ROM drives inside personal computers. 9Also called meta data. asp. Fig. 3. Components involved in hard disk and flash memory access sight.

What is forensic computing
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For example, when the contents of a hard disk drive are imaged, the data contained within the image still of media relates to the examination of various types of storage media such as hard disks, removable storage media (eg floppy disks, ZIP disks) and specialist

Throwing out the Enterprise with the Hard Disk.
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The hard disks were taken from computers that were randomly selected and purchased at several auctions. The results from this study indicate careless disposal of data devices is widespread. Keywords: forensics, hard disk, recoverable data, disposal, imaging INTRODUCTION

Incident response computer forensics
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Restoring a Qualified Forensic Duplication of a Hard Disk . 244 Preparing a Forensic Duplication for Analysis In Linux 248 260 Running Autopsy as a GUI for File Recovery 264 Using Foremost to Recover Lost Files

Guide to integrating forensic techniques into incident response
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FS File System Description FAT12 FAT12 is used only on floppy disks and FAT volumes smaller Users may create hidden partitions by altering the partition table to disrupt disk management and on a medium, and in the Host Protected Area (HPA) on some hard drives, which is

Computer forensics education
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A Yasinsac, RF Erbacher, DG Marks, MM Pollitt IEEE Security 2003 computer.org illustration of data recovery is recovering infor- mation from electromagnetically wiped or damaged disk drives.11 Extracting deleted files from magnetic devices or volatile memory is another well-known data recovery area. Analyz- ing all the data on a hard disk, for example

Reliably Erasing Data from Flash-Based Solid State Drives.
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It requires erasing data from one or more ranges of LBAs while leaving the rest of the Neither hard disks nor SSDs include specialized commands to erase specific regions of the drive2. All of them use the same approach as the software-based full-disk erasure tools: they over

The Recovery Box: Using Fast Recovery to Provide High Availability in the UNIX Environment.
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error propaga- tion, because the data stored in the recovery box for each handle is a subset of data that the server gath- ers from its clients during a hard reboot. POSTGRES has an unconventional storage manager that maintains consistency of data on disk without requiring

Secure untrusted data repository (SUNDR)
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clients always cryptographically verify the file system's state, they are indifferent to whether data was recovered one runs the server software on a networked machine with dedicated SUNDR disks or partitions off line when not in use (for exam- ple on a floppy disk, encrypted with

Management information systems
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Environment Canada's Ice Services, 152-153 Erasable optical disks, 485 Ergbrick Fiber distributed data interface (FDDI automatic, 269 Hard cards, 484 Hard disk cartridges, 484

Berkeley DB.
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crashes, sys- tem crashes, and even catastrophic failures like the loss of a hard disk, without losing any in the log up to that point are guaranteed to be present on the data disk, too. After an application or operating system crash, the recovery system only needs to go back two

End-to-end Data Integrity for File Systems: A ZFS Case Study.
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Finally, not all sys- tems incorporate multiple disks, which limits the appli- cability of RAID. be possible to distinguish memory corruption from disk corruption on a read of a disk block. which randomly flip bits in RAM without leaving any permanent damage, and hard errors which

Tutorial on disk drive data sanitization
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It's normal purpose is to recover data from failed hard disk drives, and for legal discovery. Simply bending a disk makes this nearly Page 11. 11 impossible, and physical damage to drives which warps its disks makes recovery practically impossible.

High density hard disk drive trends in the usa
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This Ru layer thickness is very similar to that required for the oxide layer in a TMR head and is difficult to attain. It is hard to achieve uniformly thin films across an area as large as a magnetic disk. RPM 10000 22000 3600 Capacity, GB/disk 76 45 181 Number of Disks (Typ) 6 4 6

Extending SSD Lifetimes with Disk-Based Write Caches.
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Since hard disks are very inexpensive, the cost of the write cache is a fraction of the SSD cost. Griffin's design is very simple: it uses a hard disk as a persistent write cache for an MLC Each I/O event specifies the time stamp (in ms), disk number, logical sector num- ber, number of

Disk system architectures for high performance computing
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Each disk has 40 recording surfaces (20 platters), 411 cylinders, and (CDC byte sectors per track. Both disks possess a limited "parallel read-out" capability. A given data word is actually byte interleaved over four surfaces.

Secure erase of disk drive data
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attack where it is desirable to completely erase the data on some disks and reinstall Software utilities that overwrite individual data files (or an entire hard drive) are susceptible to error began an investigation into incorporating a secure overwrite feature into new hard disk drives.

Evaluation of Codes with Inherent Double Replication for Hadoop
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In the case where 3 nodes belonging to a single heptagon fail, the recovery will involve accessing the contents of the sec- ond each of these nodes was a dual- core IBM laptop, having 3 GB of RAM and 150 GB of hard disk space. The Hadoop data block size was set to 128 MB

Parity logging with reserved space: towards efficient updates and recovery in erasure-coded clustered storage.
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For each OSD, the first harddisk is used as the OS disk while the entire second disk is used for storing chunks. The client nodes are equipped with Intel Core 2 Duo 6420 2.13GHz CPU, 2GB RAM and a Seagate ST3160815AS 7200RPM 160GB SATA hard- disk.

Design of Application Layer Services for Security Automation via a Web Service Approach
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Another approach known as redundant array of independent disks (RAID) [19], [20], prevents the host server The only disadvantage of the RAID technology is that both the hard disk is fully dependent will giving the possibility for someone to sneak in and steal the data from the

A Federated Model for End-User Computing Support
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assisting users in locating data 2. assisting with data transfer 3. providing backup, recovery, and archiving 1) Your decision-making authority to acquire hardware (hard disks, RAM, etc implement new end user applications ) Your authority to collect, store, and use data for the

UniCache: Hypervisor Managed Data Storage in RAM and Flash
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dramatically larger capacity than DRAM, while providing much faster speeds than traditional spinning hard drives. video server blocks take approximately 5ms to recover since each is a simple disk read. has a much wider range of recovery times, since much of the data stored in

Application research and analysis based on Bitlocker-Data protection Secure Start-up of Windows 7.
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startup process on the computer until inserting the USB startup key or inputting recovery key, system can is equipped with TPM1.2 of the trusted platform module to protect user data, it can If there is no TPM 1.2 security modules, Bitlockercould still protect the hard disk data, but it

Analysing Android's Full Disk Encryption Feature
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Once the disk encryption password of a laptop is logged, it can be read out during a second physical access such that the hard drive can eventually be decrypted Although dm-crypt is suitable for full disk encryption (FDE), Android does not encrypt full disks but only user

A modular and efficient past state system for Berkeley DB
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Without adequate support in the data store, it is hard for devel- opers to reconstruct consistent past For best perfor- mance, the extra storage is on separate disks from the database, to avoid interference. of P created by that or any later update in H is written to the database disk.

An Efficient Copy-Back Operation Scheme Using Dedicated Flash Memory Controller in Solid-State Disks
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Secondly, it is resistant to shock, since it has no mechanical components such as hard disk platter, head and spindle state disks (SSDs) are the storage device that uses flash memory as their storage media. But, The log block will be very small amount compared to the data block

Smart Grid as a Driver for Energy-Intensive Industries: A Data Center Case Study
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After the DR event is completed, the data center operations can be restored to normalcy by following the sequence of recovery operations presented Systems which do not store the operating system on a local hard disk but boot from the network are called stateless systems.

Checking the integrity of transactional mechanisms.
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software bugs, and memory corruption errors, be- fore they cause on-disk data corruption. I/O hardware failures, such as device controller failures or latent sector errors on disks. Instead, the runtime checker depends on hard- ware redundancy mechanisms, such as checksums

A Hybrid Encryption Scheme for Hadoop Based on Symmetric and Asymmetric Encryption
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Now the mainstream storage medium include traditional hard disk magnetic medium and SSD (Solid State Disk) flash memory semiconductor media. 2.3 Superiority of Hybrid Encryption (1)Protected with hybrid encryption, data is invisible to the unauthorized.

All file systems are not created equal: On the complexity of crafting crash-consistent applications
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are currently implemented on top of these file systems instead of directly on raw disks. the applica- tions we studied; several vulnerabilities have severe con- sequences such as data loss or to be atomic by many current file systems when running on a hard-disk drive); in

Diff-Index: Differentiated Index in Distributed Log-Structured Data Stores.
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Failure recovery of HBase Recall Figure 3, HBase's failure recovery relies on these facts: (1) data in in-memory MemTables have their write-ahead- logs (WAL) persisted in HDFS, (2) on-disk HTables them- selves persist on HDFS, and (3) HDFS is fault-tolerant and accessible

Flash Memory Database (FMDB) Issues and Promising
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they highlighting that these storage devices will replace the existing electronic mechanical hard disks in the platform that the traditional disk-based DB system works on it, all magnetic disks are changed A New Multi-Tiered Solid State Disk Using Slc/Mlc Combined Flash Memory

A theory for combined analysis of ring recovery and recapture data
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Numerical-based likelihood inference is feasible as the rules for constructing Pr(h|first capture) can be encoded in a computer program. of Pr(h lfirst capture) are in Table 2. Using this encounter history approach the models for joint analysis of recapture-recovery data can be

Forensic computer analysis: an introduction
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The layering of illusions limits how much you can trust information from a computer file system. The more levels of ABSTRACTion, the more opportunities for mistakes. The layering of illusions also limits the possibilities for both data destruction and data recovery.

Remembrance of data passed: A study of disk sanitization practices
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As Gutmann explains, when a computer attempts to write a one or a zero to disk, the media records it as such, but the actual effect is closer to obtaining 1.05 Gutmann presents some 22 different patterns that you can write in sequence to a disk drive to minimize data recovery.


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