The myopic view of people in Nigeria and other developing West Africa countries regarding information handling and projection has made it difficult for advanced data solution. A typical computer user or organization attitude towards loss of data or information is very discouraging to enable any company come up at all to invest in standard data solution technology using advanced data recovery tools like SalvationData tools.
There’re two major forms of flash memory: NAND Flash and NOR flash. NOR flash is mainly used for code storage and direct execution in portable electronics devices, such as BIOS storage for PCs, cell phones, PDAs and networking device memory while NAND Flash is primarily used for high-density data storage medium for consumer devices such as digital cameras, USB solid-state disk drives, industrial storage, MP3 players, cell phones and set-top boxes. New cell phone controllers that support NAND Flash as an alternative to or an addition to NOR Flash have helped make NAND a viable alternative for a broader array of applications.
When we are dealing with different computer forensic cases, we usually need to perform disk imaging. Disk imaging in computer forensics is different and much stricter than the common data copy and disk image, it must ensure the copied data is exactly the same with available simutaneous verification reports such as Hash or MD5 verification codes. Computer forensic disk imaging is sector by sector image imaging all the contents of original disk including the location of the data, the file system, the lost or corrupted data, the hidden data, etc.
Fujitsu Limited has transferred its hard disk drive (HDD) business to Toshiba Corporation on October 1st, 2009. Fujitsu drive initializes itself at power-up as follows: 1. Power-up
Compared with hard drive data recovery, flash drive data recovery can be mostly more difficult.
To find a donor PCB or donor hitachi drive is one of the important factors to restore one patient hitachi drive with PCB malfunction or firmware or head damage which requires a swap. Hitachi DK23DA has the models of DK23DA-10F with capacity of 10GB, DK23DA-20F with capacity of 20GB, DK23DA-30F with capacity of 30GB and DK23DA-40F with capacity of 40GB. It has features of 10, 20, 30 or 40 GB in 9.5mm high package for maximum capacity slimline portable applications; ATA-5 interface with 2048kB read/write cache; Ultra DMA mode 5 (100 MB/s max.) supported; GMR head and MEEPRML read channel technology; 32-bit RISC microprocessor, Shock sensor, SMART; Use of Fluid Dynamic Bearing Motor to improve Acoustic and shock characteristics
It’s very important to read some hdd error codes when you are using some Seagate hdd repair tools like pc3k or hd doctors within their cmd mode. If an error is detected, a drive outputs to terminal its code and brief additional information. E.g.: “Code – FE Track 19A1.3.06E Sns E00 Rty F7FF.FF.80FF Rtf 1C00” – “FE” error. The error codes are explained as follows: 00: No error 03: Calculated CRC doesn’t match the expected value 11: Spin error 12: Ramp load error 13: Offtrack 14: Write fault 15: Rd/wr seek timeout code 16: Seek timeout 17: “False” AMDET (mis-timed) 18: Bad burst error code 19: Bad Grey code 1A: Early sync code 1B: Missed am 1C: Failed the servo defect screen threshold 1E: Target generator sector error 1F: Physical sector error 20: Skip write detected using servo burst 22: NRZ freeze occurred (A=A’)&(B=B’)&(C=C’)&(D=D’) 29: Thermal Asperity errors padded in test 36.
HDD malfunctions are frequently caused by damage to drive controller board.
When you are going to use PC3k in its command mode to repair Segate hard drives, you need to find the following information useful to indentify the parameters for SA objects. Information in this section is necessary when automatic identification of locations during loader creation fails ; it can be used to determine the coordinates of objects for manually specified surface reading if you have to work with a HDD from a currently unsupported drive family using known and supported procedure of data reading from disk surface. To identify the parameters of drive startup, you have to switch the level of logging for execution of commands performed by the HDD.
Self Test in Seagate drives performs adjustment of adaptive drive settings and scans disk surfaces detecting and reassigning revealed defects. It works as a very sophisticated tool because a large part of factory diagnostics and HDD fine-tuning is accomplished using Self Test . Until now there was a really serious obstacle preventing Self Test use in Seagate drives belonging to Barracuda family: during the process the Self Test routine erases in a drive some service data blocks essential for HDD functioning in user mode, namely, ATA overlay (the actual program processing ATA commands and S.M.A.R.T.) and HDD ID module (in some drives it also handles the App code as well)
