Is there any program that logs the CPU usage of all programs? I want to know, over a period of one month, which programs use the CPU more intensely. Solution: Windows has this built-in. It’s called the Performance Monitor. Create a data collector set to start collecting performance data.
Database
A collection of data stored on a computer system medium, such as a hard drive, CD-ROM, etc., that can be used for more than one purpose.
Data Lifeguard
A Western Digital exclusive data reliability feature that automatically detects, isolates and repairs problem areas on the hard drive before data loss can occur.
Data Synchronizer
An electronic circuit that uses a clock signal to synchronize data to facilitate interpretation.
Dedicated Landing Zone
The designated radial zone of the disk, usually at the inner portion of the disk, where the heads are stored to avoid contact with the data cylinders when power to the drive is off.
Defect Free
A term used to describe recording surfaces that have no detectable defects.
Defect Management
A general methodology of eliminating data errors on a recording surface by mapping out known defects on the media. The defective areas are rendered inaccessible, so that when information is written to the disk, it is stored to non-defective locations on the disk.
Desktop
A personal computer sized to fit on or under your desktop. Western Digital EIDE hard drives are designed to fit into a desktop PC.
Differential SCSI
An electrical signal configuration which uses pairs of lines for data transfer. Used primarily in applications requiring long cable lengths of up to 82 feet (25 meters).
Direct Memory Access (DMA)
A process for transferring data directly to and from main memory, without passing through the CPU. DMA improves speed and efficiency by allowing the system to continue CPU processing even while it is transferring data to/from the hard drive.
Disk
A rigid platter, usually constructed of aluminum or mylar, with a magnetic surface that allows the recording of data, that is stored inside the drive.
Disk Controller
The chip or circuit that controls the transfer of data between the disk and buffer. (See also disk drive controller and interface controller).
Disk Drive Controller
The hard disk drive controller electronics which include the disk controller and the interface controller. (See also disk controller and interface controller.)
Disk Operating System (DOS)
The computer program that controls the organization of data, files and processes on the computer.
Disk Transfer Rate
Speed at which data transfers to and from the disk media (actual disk platter); a function of the recording frequency. Typical units are bits per second (BPS), or bytes per second. Hard drives have an increasing range of disk transfer rates from the inner diameter to the outer diameter of the disk.
Distribution Channel
Electronics distributors and certain retail chains that deliver electronic goods to end users through value-added resellers and some retail stores.
Case:Play the mobile phone for children, accidentally delete the text messages and photos inside, and some contact information, which is very important to customers. Solution:Data recovery engineers first conducted a fault analysis to check whether there were secondary damage, and then extracted the underlying code through professional data recovery devices. Finally, the file system was…
Half-Duplex
A communications protocol that permits transmission in both directions but in only one direction at a time.
Half-height Drives
Standard 3.5-inch hard drives are available in heights of 1.0-inch and 1.6-inches. Half-height drives measure 1.6-inches in height.
Hard Disk
A mass storage device that transfers data between the computer’s memory and the disk storage media. Hard disks are rotating, rigid, magnetic storage disks.
Hard Drive
An electromechanical device used for information storage and retrieval, incorporating one or more rotating disks on which data is recorded, stored and read magnetically.
Hard Drive Industry
The combined manufacturers of hard drives. In the United States, the industry is led by IBM, Maxtor, Seagate, Quantum and Western Digital.
Hard Error
An error that is repeatable every time the same area on a disk is accessed.
Hard Sectored
A technique that uses a digital signal to indicate the beginning of a sector on a track.
Head
The minute electromagnetic coil and metal pole which write and read back magnetic patterns on the disk. Also known as a read/write head. A drive with several disk surfaces or platters will have a separate head for each data surface. See also MR Head.
Head Actuator
A motor that moves the head stack assembly in a hard drive to align read/write heads with magnetic tracks on the disks.
Head Crash
Refers to the damage incurred to a read/write head when the head comes into contact with the disk surface. A head crash might be caused by severe shock, dust, fingerprints, or smoke, and can cause damage to the surface of the disk and/or the head.
Head Disk Assembly (HDA)
The mechanical components of a hard drive, including the disks, heads, spindle motor and actuator.
Head Loading Zone
An area on the disk specifically reserved for the heads to use when taking off or landing when power to the drive is turned on or off. No data storage occurs in the head loading zone.
Head Stack Assembly
The electromechanical mechanism containing read/write heads and their supporting devices.
Headerless Format
The lack of a header or ID fields (track format). This enables greater format efficiency and increased user capacity.
High-end Market
The enterprise market.
High-Level Format
A high-level format must be performed (with EZ-Drive or the Format command) on a new hard drive (in most cases) before you can use it. Formatting erases all the information on a hard drive and it sets up the file system needed for storing and retrieving files.
Host
The computer that other computers and peripherals connect to. See also initiator.
Host Adapter
A plug-in board that acts as the interface between a computer system bus and the disk drive.
Host Interface
The point at which the host and the drive are connected to each other.
Host Transfer Rate
Speed at which the host computer can transfer data across the SCSI interface; or, the speed at which the host computer can transfer data across the EIDE interface. Processor Input/Output (PIO) modes and Direct Memory Access (DMA) modes are defined in the ATA-4 industry specifications for the EIDE interface.
Case:1000GB mobile hard disk in the West, there is no reflection after powering. Solution:The engineer tested that the hard disk circuit board was damaged. After replacing the same type of circuit board, the hard disk motor rotated normally, but the magnetic head made an abnormal noise. It was confirmed that the magnetic head was penetrated…
Case:The server is a RAID5 composed of 4 disks. There were hard disks bright yellow lights before, but the server could be used normally, so I didn’t care about it. I found that the server could not turn on normally when I went to work the day before yesterday. Solution:After testing by the server engineer…
– Recover lost partition, data, photos, music, and documents from Windows-formatted storage.
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Operating system: Windows 2000/NT/XP/2003/Vista/Windows 7
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Stellar Phoenix Windows Data Recovery recovers data from Compact Disk (CD) and Digital Versatile Disk (DVD). The software also supports recovery of Photo from all major digital camera. Create image features of the software helps you to recover your data when your hard drive contains bad sectors. It takes the sector by sector image of the specified area of the logical drive.
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Stellar is an ISO 9001:2000 certfied company specialising in data recovery software and data recovery solutions. Stellar has over 12 years experience in this field and have over 100,000 registered users across 125 countries. Stellar offer the WIDEST range of data recovery tools on all popular platforms.
On some icons I am seeing a two blue arrows at the top the right pointing towards each other. I first noticed it on the icons on folders which I archived which happened randomly. I archived the folder and the text went blue as expected, then when I went to the folder again the text…
Case:Hard disk does not recognize the disk Solution:After the testing of the engineer, the two magnetic heads of the hard disk were damaged, and the data was restored to the dust -free studio.
5. Why use software for translation?
Software translation is an effective, although non-conventional, means of translating large capacity hard drives so they can be utilized on older systems with older motherboards and BIOS’s. We use Maxtor hard drives almost exclusively, and they (Maxtor) furnish a driver made by StorageSoft, which is called MaxBlast. Instead of loading a driver in the start-up files, MaxBlast loads drivers before the operating system is loaded.
6. Can a hard drive be transferred to another computer without losing data?
Generally speaking no, but there are exceptions to everything. Usually there are no guarantees that a new motherboard’s BIOS will use the same translation scheme as its predecessor. We recommend that you back up your data prior to making any system changes. We also recommend that the hard drive be re-partitioned and reformatted once installed in the new system.
7. Can the translation mode or parameters in the BIOS be changed?
When a drive is partitioned, the operating system interprets the size of the drive via information provided by the BIOS. Changing the translation can cause permanent data corruption. If the original parameters are changed, they usually cannot be recovered without specialized drive manipulation software. If you do not have this software, we recommend that the hard drive be re-partitioned and reformatted.
