Once you have a web site or perhaps an web app, speed is very important. The speedier your site works and then the speedier your apps function, the better for everyone. Since a web site is only a variety of data files that talk with each other, the devices that store and access these files play a vital role in web site functionality.
Hard disks, or HDDs, were, right up until the past several years, the most efficient devices for keeping information. However, in recent years solid–state drives, or SSDs, are actually gaining interest. Take a look at our comparison chart to find out if HDDs or SSDs are more appropriate for you.
1. Access Time
SSD drives give a brand–new & imaginative approach to file safe–keeping based on the use of electronic interfaces rather than any moving components and rotating disks. This new technology is way quicker, permitting a 0.1 millisecond data file access time.
HDD drives count on spinning disks for files storage purposes. When a file is being accessed, you will have to wait around for the right disk to reach the appropriate position for the laser beam to access the file you want. This translates into a regular access rate of 5 to 8 milliseconds.
2. Random I/O Performance
The random I/O performance is important for the performance of any data storage device. We’ve carried out extensive trials and have determined an SSD can handle no less than 6000 IO’s per second.
Hard drives feature reduced file access speeds due to aging file storage space and accessibility technology they are by making use of. And in addition they display much sluggish random I/O performance as compared with SSD drives.
For the duration of DataTide.com’s tests, HDD drives maintained on average 400 IO operations per second.
The lack of moving parts and rotating disks in SSD drives, and the current developments in electronic interface technology have generated a much less risky file storage device, having an typical failing rate of 0.5%.
HDD drives employ spinning hard disks for holding and reading data – a technology going back to the 1950s. And with disks magnetically suspended in the air, spinning at 7200 rpm, the odds of some thing going wrong are generally higher.
The common rate of failing of HDD drives can vary between 2% and 5%.
4. Energy Conservation
SSDs do not have moving components and require hardly any chilling power. In addition, they call for very little energy to perform – trials have shown they can be operated by a regular AA battery.
As a whole, SSDs use up somewhere between 2 and 5 watts.
HDD drives are famous for getting loud. They need a lot more electrical power for chilling purposes. With a server which has several HDDs running continually, you will need a great number of fans to make sure they’re cool – this will make them far less energy–economical than SSD drives.
HDDs use up in between 6 and 15 watts.
5. CPU Power
As a result of SSD drives’ higher I/O performance, the key web server CPU will be able to process data demands much faster and preserve time for different operations.
The common I/O wait for SSD drives is exactly 1%.
As compared with SSDs, HDDs enable reduced data accessibility rates. The CPU will need to wait around for the HDD to send back the requested data file, reserving its allocations meanwhile.
The common I/O wait for HDD drives is about 7%.
6.Input/Output Request Times
In real life, SSDs operate as wonderfully as they performed during our checks. We ran a complete system backup using one of our own production machines. Over the backup procedure, the typical service time for I/O queries was indeed under 20 ms.
Weighed against SSD drives, HDDs provide significantly reduced service rates for input/output calls. Throughout a web server backup, the regular service time for any I/O call can vary somewhere between 400 and 500 ms.
7. Backup Rates
It is possible to check out the real–world benefits to having SSD drives each and every day. As an example, with a web server built with SSD drives, a complete data backup can take only 6 hours.
We utilized HDDs mainly for a couple of years and we’ve very good knowledge of just how an HDD works. Creating a backup for a server equipped with HDD drives will take about 20 to 24 hours.
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