For decades there seemed to be only 1 trustworthy way to keep data on a pc – utilizing a hard disk drive (HDD). On the other hand, this type of technology is actually showing it’s age – hard drives are noisy and sluggish; they are power–ravenous and are likely to create a great deal of heat during serious operations.
SSD drives, however, are quick, take in significantly less power and are also much cooler. They offer an exciting new way of file accessibility and storage and are years in advance of HDDs relating to file read/write speed, I/O performance as well as power capability. Find out how HDDs stand up up against the modern SSD drives.
1. Access Time
Due to a radical new method to disk drive operation, SSD drives make it possible for much quicker data accessibility speeds. With an SSD, data access instances tend to be lower (as little as 0.1 millisecond).
HDD drives count on spinning disks for files storage reasons. Each time a file will be used, you will need to wait for the right disk to reach the appropriate position for the laser beam to access the file in question. This results in a typical access rate of 5 to 8 milliseconds.
2. Random I/O Performance
Caused by the unique radical data file storage method shared by SSDs, they have quicker data access speeds and speedier random I/O performance.
Throughout our lab tests, all of the SSDs confirmed their ability to handle at the very least 6000 IO’s per second.
Hard drives present slower file access rates due to older file storage space and access technique they are using. In addition, they illustrate considerably slower random I/O performance when compared to SSD drives.
In the course of our lab tests, HDD drives handled typically 400 IO operations per second.
SSD drives are built to have as fewer rotating elements as is practical. They use an identical concept to the one utilized in flash drives and are also much more dependable compared to traditional HDD drives.
SSDs have an typical failing rate of 0.5%.
To have an HDD drive to operate, it has to rotate 2 metal disks at a minimum of 7200 rpm, keeping them magnetically stable in mid–air. They have a whole lot of moving elements, motors, magnets as well as other gadgets stuffed in a small place. Therefore it’s no surprise that the regular rate of failure of an HDD drive varies between 2% and 5%.
4. Energy Conservation
SSD drives function practically soundlessly; they don’t create excessive heat; they don’t mandate added cooling methods and also take in much less electricity.
Lab tests have revealed that the normal electricity usage of an SSD drive is between 2 and 5 watts.
HDD drives are renowned for staying loud. They need more electricity for cooling applications. Within a web server which has a lot of different HDDs running constantly, you’ll need a lot of fans to ensure they are cooler – this makes them a lot less energy–economical than SSD drives.
HDDs use up somewhere between 6 and 15 watts.
5. CPU Power
As a result of SSD drives’ higher I/O performance, the key server CPU will be able to work with data file requests more quickly and conserve time for different operations.
The normal I/O delay for SSD drives is only 1%.
HDD drives permit slower access speeds when compared with SSDs do, resulting in the CPU having to hang on, although reserving assets for your HDD to discover and give back the inquired data file.
The average I/O delay for HDD drives is just about 7%.
6.Input/Output Request Times
The majority of our completely new web servers moved to solely SSD drives. Our personal lab tests have established that having an SSD, the typical service time for any I/O request although running a backup stays under 20 ms.
With the exact same server, but this time furnished with HDDs, the end results were very different. The regular service time for any I/O call changed between 400 and 500 ms.
7. Backup Rates
Referring to backups and SSDs – we’ve found an effective improvement in the back up rate since we turned to SSDs. Now, a usual hosting server data backup will take simply 6 hours.
We made use of HDDs exclusively for a few years and we have now great comprehension of exactly how an HDD functions. Creating a backup for a server designed with HDD drives is going to take around 20 to 24 hours.
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