Which hard drive to choose?

In this article we will try to explainsimple language, which hard drive to choose and for what purpose. After all, data security is important not only to FBI employees, but also to ordinary users. No one wants to lose the necessary information due to a hard disk failure, whether it's documents or just a favorite movie.

Manufacturers

If you have a question, what hard drivechoose the first thing you need to pay attention to is the manufacturer of hard drives. Competent choice of the manufacturer is often the determining factor in such aspects as the device lifetime, power consumption, heat generation, its speed and volumes. At the moment, three worthy manufacturers of hard disks are truly worthy of the users, who are truly giants in the IT industry: Seagate (they are Maxtor), Samsung and Western Digital. Of course, there are companies Toshiba, Hitachi and others, but, in my opinion, these companies are already far behind the three leaders of this industry and their products are inferior to them in order.

Consider the manufacturers separately.

WD (WesternDigital)

Once standard hard drives are now losing theirposition. In practice, HDDs of this company are characterized by increased heat generation (which requires normal cooling) and low stability, but they work with little noise and with tremendous speed. As they say, your choice depends on your needs. If you need a quiet and high-speed hard drive, then this is WD.

Seagate

This company issues, in my opinion,standards of stability. The main distinguishing feature of Seagate hard drives is their low heat dissipation. Also worth noting is their quiet operation and low consumption, which is very important with a modest power BP. But the speed of these discs leaves much to be desired - they are rather slow.

Samsung

Probably one of the main advantages of these harddiscs will not leave anyone indifferent - this is a small price. Of course, for a fairly small price you will get a hard drive with fairly low performance, but the choice is yours! You will not get any special results from them.

Interface

Do not know which hard drive to choose? When buying, you need to know where and how it is inserted and which interface is better.

An interface is a way to connect a hard driveto a computer or to another device that supports hard disk connection. The interface depends on the bandwidth of the disk (ie, the speed of "write / read").

Since the article is prepared for beginnersusers, then I will miss such interfaces as SCSI, SAS, since these interfaces are not inherent in home computers. Also forget about the ATA interface in view of its complete obsolescence.

SATA and eSATA

In fact, there are only two SATA and eSATA interfaces left.

  • SATA. At the moment, the most common interface. There are several versions of this interface - SATA-I-II-III. Differ only in the data transfer speed (150 MB / s, 300 MB / s, 600 MB / c, respectively, for each version).
  • eSATA. It is most often used to connect external hard drives.

External hard drives also use USB ports.

External or internal disk

When asking which hard drive to choose, do notForget: external or internal you want. You can always take the external with you, but it is slower and more expensive, the internal hard drive is faster and cheaper, but it is not suitable for rough transport, for example, in a bag.

For a home computer I recommend buying SATAhard disks, they are optimal in performance and price. You should also remember that your motherboard must support SATA hard drives. By the way, if there is a SATA-I interface on your board, you can easily stick a SATA-II or SATA-III hard drive into it and vice versa, there will be no problems with the work.

Dimensions and capacity

Capacity depends purely on your personal needs! The more you are going to store data on your hard drive, the more it is needed.

As for the physical size orform factor, then the most common and, in fact, the only ones on the market are 2.5 and 3.5 inches. The first ones are usually used in laptops and external hard drives. For home computers, it's natural - it's 3.5 inches. By the way, by the way, drives 2.5 inches speed is several times less than for disks of 3.5 inches.

Spindle speed, cache

Spindle rotation speed

Directly determines the performance and data rate. Currently the standard speeds are:

  • 5400, 7200 - laptops;
  • 7200, 10000 - desktop PCs.

I recommend that you take the hard drives with the maximum value of this parameter.

Buffer capacity (cache)

The buffer is an intermediate memory for synchronizationread / write streams. The buffer increases the speed of any hard disk; information is taken from the cache, not from the disk. In modern disks, the cache volume is usually from 8 to 64 MB. Naturally, the more it is, the better.

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