Recovering Folder Relationships Using DOS Clustering Design
November 18, 2008 by Dick Correa
Filed under Data Recovery Solutions, File Systems Explained, How To's
In my last installment I described what a file entry record would look like if it were in fact a cluster holding file entry data. I went over the fact that the first two entries of the folder cluster would be a period followed by ten spaces, and...
[Read more...]Using FAT32 File Entry Record For Recovering Folders Using Software Logic
November 12, 2008 by Dick Correa
Filed under Data Recovery Solutions, File Systems Explained, Software How To's
In my last installment I described the file entry record and its on-disk format. I used a ‘C’ structure to denote the different fields of the record and defined which five are most important to us when trying to recover a FAT32 file...
[Read more...]FAT32 Recover File Entry Table On-Disk Layout Using a C Structure
October 30, 2008 by Dick Correa
Filed under Data Recovery Solutions, File Systems Explained
In my last installment Recovering FAT 32 With File System Markers, I offered a brief outline of a case that destroyed a FAT32 file systems major components. This was done by formatting the drive using an operating system that is not native to the file...
[Read more...]Recovering FAT32 With File System Markers
October 24, 2008 by Dick Correa
Filed under Data Recovery Software How To's, Data Recovery Solutions, File Systems Explained
In my last installment, Recovering FAT 32 with File Entry Records, I talked about USB and Fire Wire devices and how they are susceptible to damage. In addition I spoke about the file system used to store data on these devices as being FAT32 in order...
[Read more...]Recovering FAT32 with File Entry Record Data Only
October 21, 2008 by Dick Correa
Filed under Data Recovery Software How To's, Data Recovery Solutions, Software How To's, Windows Operating System How To's
External USB hard drive devices have been a real ‘boon’ for the hard drive recovery industry. From the fact that they dissipate heat poorly, they are susceptible to vibration, and your dog walking past your computer happily wagging its...
[Read more...]How platter swelling affects a hard drive
October 8, 2008 by Dick Correa
Filed under File Systems Explained, Hard Drive How To's
Okay, I know this is not about how to read bad parity in a drive in order to find a the stale drive in an RAID five. This is an important subject, however, I also think it is important to know why heat and a swelling platter can cause hard drive...
[Read more...]Partition Types in a Soft Spanned Set
September 22, 2008 by Dick Correa
Filed under How To's, RAID Recovery Explained
Last time I explained the basic premise of a spanned set. I used the example of a clients RAID that contained 3 36 GB SCSI drives. In a standard set each one of the drives would use one partiton for the entire drive and then the set would be mounted...
[Read more...]What File System Components are affected by FDISK
September 11, 2008 by Dick Correa
Filed under Hard Drive How To's, How To's, Software How To's
As I have mentioned before we have all either by design or by accident fdisked an NTFS file system. In doing so all of the files become inaccessible and the assumption for many years was that they could not be recovered. Many of the more recent pieces...
[Read more...]Recovering from Accidental FDISK using Free Software
September 4, 2008 by Dick Correa
Filed under File Systems Explained, How To's
Like many of us I have accidentally used ‘fdisk’ to partition a drive that I had never intended to. Whether it be adding a new drive, repartitioning and formatting a USB device, or just trying to reload the operating system there has been...
[Read more...]Recovering a Spanned RAID Set Without RAID Software
August 27, 2008 by Dick Correa
Filed under RAID Recovery Explained
Recently it was my displeasure to work on a three drive spanned set for NT 4.0. The set was soft configured so when the boot drive went down, with all of the configuration data for the RAID on it, the RAID would not mount. In addition to that,...
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