Hard drives for data centers and normal hard drives The differences
If you are a little familiar with online businesses, you have probably come across words like data center and server. All sites and apps that provide online services must store and process information locally. Datacenters provide the resources needed for this task; One of these sources is the hard disk. Now we come to the main question, what is the difference between special data center hard drives and normal hard drives?
In order to answer this question, it is better to know the data center and hard disk better.
What is a data center?
A data center is a collection of network computers, servers, servers, storage, computing, communication and security infrastructure that provides, maintains and supports network services such as the Internet. Organizations use servers to store their critical and proprietary data. These servers are located in data centers, so security and reliability are two important factors for data centers.
Of course, this issue is not only for organizations and all people can benefit from the services of data centers according to their needs. The price and cost of renting a server from data centers can be changed depending on its various features such as the amount of RAM memory, CPU speed, maximum monthly traffic, hard disk size, type of data center, operating system and other things.
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What is a data center? Introduction of categories and its structure
What is a hard disk?
Every device (computer, CCTV, etc.) that stores digital data has a hard drive. There are different types of hard drives, one of which is Hdd (Hard Disk Drive) . Hdd literally means hard disk drive, which is made of several rotating magnetic disks. Hard drives are different in terms of capacity and… depending on the device in which they should be placed.
In the following, we will examine the difference between a server hard drive and a simple hard drive.
Hard server
Since SSDs and chinese thailand phone number lead are expensive and have a small capacity, the overall process of server hard drives is still traditional mechanical hard drives. At first glance, it seems that there is no difference between a server hard disk and a simple hard disk, and both of them are 2.5 / 3.5 inches. Mechanical hard disks are all internal and their heads are magnetic and platters.
Hard server features
In addition, the server hard disk cache is more than a simple hard disk. For example, the cache of a simple hard disk is a total of 8 MB, 16 MB, the largest is 64 MB, and a server hard disk is a total of 64 MB, 128 MB, or even more. Therefore, the overall speed of the server hard disk is much higher than normal hard disks, and its data transfer capacity per second is also higher than simple hard disks.
Features of normal hard drives
Server hard drives benefit from more stability and reliability. Simple computers do not essentially operate intermittently and are relatively less stable and secure. Since the server needs 24 hours of uninterrupted activity and basically the running time of many servers is calculated on a monthly or yearly basis, during maintenance, work with it is only stopped for a while.
This period can happen due to their replacement or upgrading. Therefore, server hard disks benefit from high requirements in terms of stability and reliability, which makes server hard disks more secure in terms of materials and design. to benefit In addition to SMART technology (self-monitoring, analysis and reporting of technology), RAID technology can also be used to ensure data stability. In addition, in order to avoid accidental shocks, server hard disks have been specially monitored in terms of resistance to foreign forces, they are generally able to withstand 300G to 1000G impact.
But conventional hard drives do not support SMART technology, and RAID magnetic array technology is gradually used (except for advanced computers). RAID is an abbreviation of the English word “Redundant Array of Inexpensive Disks” which means “plug-in array of independent disks”, which is the disk array that we say most of the time.
In general, RAID is similar to connecting several hard drives privately and is mainly used to increase the performance and storage of hard drives.
What is the difference between a server hard disk and a regular hard disk?
The server hard disk supports hot swap or Hot Plug.
Conventional mechanical hard drives do not support hot swap. Most server hard drives support hotswap, which allows you to insert or remove a hard drive without stopping the server. The reason system can detect the changes of the hard disk automatically. Among other things, SCSI hard disks have SCA2 interface (pin_80) which specifically supports hot swap technology. When used with a SCSI backplane, you can easily hot-swap hard drives. This technology is very necessary for a server that operates 24 hours a day. However, conventional hard drives usually do not support hot swap. In this case, there is a big difference between server hard disks and simple hard disks.
The hard disk of the server is faster.
The speed of simple mechanical hard drives is usually 7200 rpm, and the old hard drives have only 5400 rpm. The speed of the server’s hard disk is higher, generally it can reach more than 7200 rpm, the common speed of 10000 rpm / 15000 rpm or even more.
Other differences
Currently there are three basic hard drives in the server market:
SATA hard drives, SCSI hard drives and SAS hard drives SATA hard drives are mainly used in low-end servers. While SCSI and SAS hard drives tend towards mid-range servers. Most servers use SCSI hard drives with High throughput and very low processing usage. External transfer rate and internal transfer speed of SCSI hard disks are much higher than conventional hard disks. In total, it uses Ultra160 SCSI, Ultra320 SCSI and other standards. The data transfer speed per second can reach 160 MB and 320 MB, respectively.
Currently
the most important SCSI hard drives use the Ultra320 SCSI standard. SCSI hard disks can only be used with the SCSI interface method. Some server the evolution of email marketing and its trends in 2024 motherboards use a SCSI interface and others have a special SCSI interface card. The SCSI interface card can connect 7 SCSI devices together, but it is not comparable to simple hard disk interfaces.
The Pooyan IT website content production team has compiled and organized. This article (what are the differences between special kcrj hard drives for data centers and ordinary hard drives) in order to increase. The awareness and knowledge of those interested in the field of hardware.