For many years there was a particular dependable way for you to keep data on a pc – by using a hard disk drive (HDD). Nevertheless, this sort of technology is presently displaying its age – hard drives are actually noisy and slow; they can be power–ravenous and tend to generate a lot of heat in the course of intense procedures.
SSD drives, in contrast, are fast, take in way less energy and are generally far less hot. They offer a new method of file access and data storage and are years in front of HDDs when considering file read/write speed, I/O efficiency and then power efficiency. Observe how HDDs stand up up against the modern SSD drives.
1. Access Time
SSD drives provide a fresh & revolutionary method to data safe–keeping in accordance with the use of electronic interfaces as an alternative to any sort of moving parts and revolving disks. This different technology is much quicker, allowing for a 0.1 millisecond file access time.
The technology powering HDD drives times all the way back to 1954. And even while it’s been substantially refined throughout the years, it’s still no match for the inventive ideas powering SSD drives. Using today’s HDD drives, the very best data access speed you’ll be able to attain differs between 5 and 8 milliseconds.
2. Random I/O Performance
The random I/O performance is crucial for the general performance of any data storage device. We’ve run substantial lab tests and have established an SSD can manage no less than 6000 IO’s per second.
Over the same trials, the HDD drives demonstrated that they are considerably slower, with simply 400 IO operations handled per second. While this may appear to be a great number, when you have a busy web server that serves loads of well known sites, a sluggish disk drive can lead to slow–loading sites.
SSD drives are created to have as less rotating elements as is feasible. They use a comparable technology to the one utilized in flash drives and are also significantly more reliable compared with conventional HDD drives.
SSDs have an average failing rate of 0.5%.
For the HDD drive to work, it should rotate two metallic disks at more than 7200 rpm, holding them magnetically stable in mid–air. They have a lots of moving parts, motors, magnets and other gadgets loaded in a tiny place. Hence it’s no surprise that the normal rate of failing of any HDD drive can vary in between 2% and 5%.
4. Energy Conservation
SSDs are lacking moving components and need little or no chilling energy. Additionally, they demand very little electricity to operate – tests have demostrated that they’ll be powered by a regular AA battery.
As a whole, SSDs take in somewhere between 2 and 5 watts.
From the moment they were constructed, HDDs have been very electrical power–greedy devices. And when you’ve got a hosting server with numerous HDD drives, this will certainly add to the month–to–month utility bill.
Typically, HDDs take in between 6 and 15 watts.
5. CPU Power
The speedier the file access rate is, the sooner the data file demands will likely be delt with. Because of this the CPU will not have to hold resources waiting for the SSD to reply back.
The common I/O wait for SSD drives is 1%.
As compared with SSDs, HDDs enable slower data file accessibility rates. The CPU must lose time waiting for the HDD to come back the demanded data file, saving its allocations in the meanwhile.
The normal I/O delay for HDD drives is around 7%.
6.Input/Output Request Times
It is time for some real–world cases. We ran a detailed platform backup with a server using only SSDs for file storage reasons. In that procedure, the standard service time for any I/O request remained under 20 ms.
Using the same hosting server, however this time built with HDDs, the effects were completely different. The standard service time for an I/O call changed somewhere between 400 and 500 ms.
7. Backup Rates
You are able to notice the real–world added benefits of utilizing SSD drives every single day. For instance, with a web server equipped with SSD drives, a full back–up is going to take simply 6 hours.
We made use of HDDs exclusively for quite a while and we have now very good knowledge of exactly how an HDD runs. Generating a backup for a hosting server equipped with HDD drives can take around 20 to 24 hours.
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