For decades there seemed to be a particular reputable solution to store data on a computer – by using a disk drive (HDD). However, this sort of technology is already demonstrating it’s age – hard disks are really noisy and slow; they can be power–hungry and have a tendency to generate quite a lot of heat during intensive operations.
SSD drives, however, are fast, consume significantly less energy and are also far less hot. They offer a completely new solution to file accessibility and storage and are years ahead of HDDs relating to file read/write speed, I/O performance as well as energy capability. Discover how HDDs stand up against the more recent SSD drives.
1. Access Time
After the launch of SSD drives, data access speeds are now through the roof. On account of the unique electronic interfaces utilized in SSD drives, the normal file access time has been reduced into a all–time low of 0.1millisecond.
HDD drives continue to work with the exact same basic data access concept which was actually developed in the 1950s. Even though it has been substantially improved after that, it’s slow compared with what SSDs will offer. HDD drives’ file access speed ranges somewhere between 5 and 8 milliseconds.
2. Random I/O Performance
The random I/O performance is important for the functionality of a data file storage device. We have conducted extensive exams and have determined that an SSD can deal with at the very least 6000 IO’s per second.
With an HDD drive, the I/O performance steadily enhances the more you employ the hard drive. However, as soon as it extends to a particular limit, it can’t proceed faster. And because of the now–old technology, that I/O limitation is much less than what you can get with a SSD.
HDD are only able to go so far as 400 IO’s per second.
SSD drives lack just about any moving parts, meaning that there’s a lesser amount of machinery inside them. And the fewer literally moving components you will discover, the fewer the possibilities of failure are going to be.
The typical rate of failure of any SSD drive is 0.5%.
HDD drives employ rotating disks for saving and browsing data – a technology since the 1950s. Along with disks magnetically suspended in the air, spinning at 7200 rpm, the prospect of something failing are generally bigger.
The average rate of failing of HDD drives can vary among 2% and 5%.
4. Energy Conservation
SSD drives are considerably smaller than HDD drives and also they don’t possess any kind of moving components whatsoever. As a result they don’t produce just as much heat and require much less energy to operate and much less power for cooling purposes.
SSDs use up amongst 2 and 5 watts.
HDD drives can be well known for getting loud; they are prone to getting too hot and in case you have several hard drives within a web server, you will need a further cooling device only for them.
In general, HDDs take in between 6 and 15 watts.
5. CPU Power
The swifter the data access rate is, the sooner the data requests will be treated. Consequently the CPU will not have to arrange assets expecting the SSD to reply back.
The average I/O wait for SSD drives is only 1%.
HDD drives permit reduced access speeds than SSDs do, which will result in the CPU required to hold out, while reserving allocations for the HDD to discover and give back the demanded data.
The common I/O wait for HDD drives is approximately 7%.
6.Input/Output Request Times
The bulk of our brand–new web servers are now using merely SSD drives. Each of our tests have indicated that using an SSD, the common service time for any I/O request whilst operating a backup stays below 20 ms.
With the exact same server, however this time equipped with HDDs, the effects were totally different. The normal service time for an I/O request changed somewhere between 400 and 500 ms.
7. Backup Rates
Another real–life development is the rate at which the back up has been created. With SSDs, a hosting server back–up now will take no more than 6 hours by making use of Linux Hosts Ltd.’s hosting server–optimized software.
In the past, we have utilized mainly HDD drives with our machines and we’re knowledgeable of their overall performance. With a web server loaded with HDD drives, a full hosting server back–up usually takes about 20 to 24 hours.
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