If you’ve been talking to a data recovery technician you may have data recovery in Tampa heard some unfamiliar terms and acronyms that the rest of us may not understand.
HDD- Hard Disk Drive, an HDD helps manage the transfer of data to and from your computer’s hard disk.
Hard disk drive or hard disk are usually refer to as the same thing.
SDD- solid-state drive or solid-state disk is a nonvolatile storage device that stores persistent data on solid-state flash memory.
Partition- A portion of a physical disk that functions as though it were a physically separate disk.
Basic Disk- A physical disk that can be accessed by MS-DOS and all Windows-based operating systems.
Dynamic Volume- A volume that resides on a dynamic disk. Windows supports five types of dynamic volumes: simple, spanned, striped, mirrored, and RAID-5. A dynamic volume is formatted by using a file system, such as file allocation table (FAT) or NTFS, and has a drive letter assigned to it.
FAT- File Allocation Table, a FAT is a table stored on your storage device that tells the computer where to look over when it needs to find a file stored on this device. When you save data, it is stored in chunks of information called “clusters”. The clusters for a single file may actually be located in several different areas on your storage media. The FAT is your computer’s way of recording the locations of those clusters for each file you save. The term FAT is often used to refer the file systems, which use File Allocation Tables – FAT12, FAT16, FAT32.
NTFS- NT file system, this is basically the Windows NT equivalent of the FAT described above.
RAID- Redundant Array of Inexpensive Disks. This refers to an arrangement where multiple disks are used to either store large amounts of data, increase throughput (speed), or both.
RAM- Random Access Memory. This is a type of high speed temporary memory which is volatile in nature erased every time it is powered off.
ROM- Read Only Memory. In hard drives this generally refers to a specific chip, or even the code contained within the ROM chip on the PCB which is necessary to properly initialize the drive.
Host- A Host is used to recover the lost data from the Bad Device, which should be connected to the Host Computer as an additional drive.
Sectors- A factory defined area on the media that holds 512 bytes of raw data. It is the smallest amount of data that can be written or read from the media.
Raw Data- (i.e. bit stream) all bits on a storage medium, regardless of logical structure or intended use.
Read/Write Heads- Small electromagnets and electromagnetic resistance sensors at the tip of the hard drive actuator arm. They are the devices that read/write magnetic data to and from the actual hard drive platter surface.
Monolithic- In data recovery it refers to storage devices which are entirely built into a single chip. Many SD cards, MicroSD cards, thumb drives, and other flash media are produced this way.
Thumb Drive- Small solid state data storage devices which connect directly into a USB port of a computer.
Format or Formatted- Refers to the process of re-writing the file system of a hard drive or logical volume.
CD or CD-ROM- Compact Disk. Refers to an optical disk used to store music tracks or digital data.
CD-ROM Drive- Generally a term referring to devices that can read CD’s in a computer.
Firmware- This refers to software which is contained within electronic hardware. In data recovery some people use this term referring to the service area of a hard drive.