For decades there seemed to be just one trustworthy path to keep information on your computer – using a hard drive (HDD). However, this sort of technology is already showing its age – hard disks are actually loud and sluggish; they are power–ravenous and frequently produce a great deal of warmth for the duration of serious procedures.
SSD drives, in contrast, are really fast, take in a lesser amount of power and tend to be far less hot. They furnish an exciting new way of file accessibility and data storage and are years in front of HDDs when it comes to file read/write speed, I/O performance as well as energy efficacy. Observe how HDDs fare up against the more recent SSD drives.
1. Access Time
SSD drives provide a fresh & revolutionary way of file safe–keeping in accordance with the utilization of electronic interfaces rather than any moving parts and rotating disks. This unique technology is noticeably faster, permitting a 0.1 millisecond data access time.
HDD drives continue to makes use of the exact same general data file access technology which was originally created in the 1950s. Although it has been noticeably upgraded since that time, it’s slower compared with what SSDs are offering. HDD drives’ data file access rate ranges in between 5 and 8 milliseconds.
2. Random I/O Performance
Because of the very same revolutionary method allowing for faster access times, also you can get pleasure from better I/O effectiveness with SSD drives. They can conduct twice as many functions within a given time when compared to an HDD drive.
An SSD can deal with at least 6000 IO’s per second.
With an HDD drive, the I/O performance gradually increases the more you apply the drive. Even so, right after it reaches a particular restriction, it can’t proceed quicker. And because of the now–old concept, that I/O limit is significantly lower than what you might get with a SSD.
HDD can only go as far as 400 IO’s per second.
The lack of moving components and rotating disks in SSD drives, as well as the recent advances in electronic interface technology have ended in a considerably better data file storage device, having an common failure rate of 0.5%.
To have an HDD drive to operate, it has to rotate a couple metal disks at a minimum of 7200 rpm, holding them magnetically stabilized in mid–air. There is a whole lot of moving parts, motors, magnets and also other devices loaded in a tiny place. Hence it’s no surprise that the average rate of failing of any HDD drive varies in between 2% and 5%.
4. Energy Conservation
SSD drives work nearly silently; they don’t produce excess warmth; they don’t call for supplemental cooling options and then take in way less electricity.
Tests have shown the normal electricity consumption of an SSD drive is somewhere between 2 and 5 watts.
HDD drives are renowned for becoming noisy. They want extra electricity for air conditioning purposes. With a web server containing different HDDs running all of the time, you’ll need a great number of fans to keep them cooler – this will make them a lot less energy–effective than SSD drives.
HDDs consume between 6 and 15 watts.
5. CPU Power
Because of SSD drives’ higher I/O performance, the key hosting server CPU can easily process file requests more rapidly and save time for different operations.
The regular I/O wait for SSD drives is 1%.
When using an HDD, you have to devote additional time waiting around for the results of one’s file ask. Because of this the CPU will remain idle for additional time, expecting the HDD to respond.
The typical I/O delay for HDD drives is about 7%.
6.Input/Output Request Times
In the real world, SSDs perform as admirably as they have throughout the checks. We produced an entire system back up on one of our production servers. During the backup procedure, the average service time for I/O calls was basically below 20 ms.
All through the exact same lab tests sticking with the same web server, now fitted out using HDDs, efficiency was considerably sluggish. During the web server data backup procedure, the normal service time for I/O calls ranged between 400 and 500 ms.
7. Backup Rates
Talking about back–ups and SSDs – we’ve found an exceptional improvement with the back up speed since we turned to SSDs. Right now, a usual web server back–up can take only 6 hours.
Alternatively, on a web server with HDD drives, a similar data backup normally takes 3 to 4 times as long in order to complete. An entire back–up of an HDD–powered hosting server typically takes 20 to 24 hours.
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