Hard Disk Drive HDD

People of hardware that does not know what is the HDD or HDD is insufficient. After the motherboard, power supply, monitor (bit depth e) the majority population hardware must be proficient in troubleshooting problems on the hard disk.

1. Structure hard drive: If you want to talk about it at length in theory but reading  Here I want to mention that the structural and functional ability effects (correction Repair or damage) to the hard drive. Looking from the outside, visible electronic circuit includes a control circuit also known (logic) underneath.

All the rest referred to as HDA it includes muscle, reader, face plate ...

Outside of logic circuit is part of the hard drive interface includes three slots: slot sources (taken from the ATX power supply), jumper slots, slot signal wire (to connect to the motherboard), including ATA interface and SATA (in addition to SCSI for servers).

On the logic circuit often has 4 main IC controller IC that is, the buffer IC, IC motor driver IC ATA or SATA conversion.

Read speed of the motor is 5,400 to 7,200 or 10,000 cycles / min. Of course, the faster the speed of rotation speed faster data rate. In addition, the buffer (Buffer), the greater the speed the greater access. In addition to these, there are 4 main IC Voltage Regulator IC, resistor fuse ...

2. Overview of Partition, FAT, FAT32, NTFS:

Before diving in repairing hardware (logic) I will mention in the following article. The problem is our concern about buying a new drive should partition (Divide hard drive) and format (Format), the plug-in. So why do we have to "Divide hard drive"?

Remember earlier, around 1993, when I knew what a computer was at that time in city high schools. HCM seems no one school is equipped computer lab. Particularly I (high school Professionals Le Hong Phong) is equipped with one engine room "whether" including the 8086 XT computer screen mono (one color only) and 2 1.2MB floppy drive does not have a hard drive. Should be able to say at this time is unknown what drives.

Subsequently, circa 1994 - 1995 in a number of computer rentals practices have emerged machine 80286, 80386 with VGA and SVGA color monitor, the royal herd was then appear hard drive and 40MB and 20MB 120MB , 170MB, 210MB ... you do not mistakenly thought tui type of hard drive space then accurately measured in megabytes (MB), not gigabytes (GB) as now. When the hard drive capacity of up to 1.2GB, 2.1GB and 3.2GB or 4.3GB, the problem arises OSincomprehensible larger than 2.1GB hard drive ??? because it still uses the FAT often (ie FAT16). So while there is a minimum of 2.1GB hard drive on the birth meant to be divided into multiple partition hard drive. Now each partition with the maximum size is 2.1GB it was ridiculous when the hard disk drive capacity greater than 8.4GB, 10GB, 15GB, 20GB ... it is time to appear FAT32 . At nascent FAT32 Partition management is up to 32GB. Later that FAT32 does not meet security requirements should NTFS born. Currently two types of this Partion (FAT32 and NTFS) was used quite common on computers using Windows operating systems.

3. Partition:

Partition So what? At first hard drive is usually not very large hard drive is divided into two drives. The first volume contains the operating system called the primary partition (primary partition) Extended partition remaining Partion (extended partition) contains one logical partition drives (drives Logic).

So to split into 2 drives one drive, then we will create: Primary Partition, Extended Partition and Logical drives.

Want to share a hard disk drive, then we will create 3: Primary Partition, Extended Partition and 2 Logicaldrives.

So the first thing to do is to divide the hard disk drive (fdisk) and format (format). To make this work two previously have used to try the Fdisk and Format of DOS. Today, the People "hardware" is often used two programs available in diskHirent Boot CD which is Disk Manager and Partition Magic .