For decades there seemed to be a single trustworthy way for you to store info on a laptop – with a disk drive (HDD). Having said that, this type of technology is actually displaying its age – hard drives are actually loud and slow; they are power–hungry and tend to generate lots of heat for the duration of intensive procedures.
SSD drives, alternatively, are fast, consume way less energy and tend to be much cooler. They provide a whole new way of file access and storage and are years in front of HDDs in relation to file read/write speed, I/O effectiveness and also energy effectivity. Figure out how HDDs stand up against the newer SSD drives.
1. Access Time
Because of a revolutionary new approach to disk drive performance, SSD drives allow for much faster file access rates. Having an SSD, file access instances are far lower (as little as 0.1 millisecond).
HDD drives even now use the very same fundamental data access technology that was originally created in the 1950s. Although it was vastly upgraded since that time, it’s slow as compared with what SSDs are providing. HDD drives’ data file access speed varies somewhere between 5 and 8 milliseconds.
2. Random I/O Performance
The random I/O performance is important for the operation of a file storage device. We’ve conducted thorough trials and have confirmed an SSD can handle at the very least 6000 IO’s per second.
Hard drives provide slower data file access rates as a result of older file storage and access concept they’re by making use of. And they also demonstrate much reduced random I/O performance as opposed to SSD drives.
For the duration of RaH Services’s lab tests, HDD drives maintained around 400 IO operations per second.
SSD drives are lacking just about any moving components, meaning that there is significantly less machinery included. And the fewer actually moving components you’ll find, the fewer the likelihood of failing will be.
The average rate of failing of an SSD drive is 0.5%.
HDD drives work with rotating disks for storing and reading through files – a technology going back to the 1950s. Along with hard disks magnetically suspended in the air, rotating at 7200 rpm, the possibilities of something failing are generally higher.
The common rate of failing of HDD drives can vary amongst 2% and 5%.
4. Energy Conservation
SSDs don’t have moving parts and require minimal cooling down power. In addition, they involve not much electricity to work – lab tests have established that they’ll be operated by a normal AA battery.
As a whole, SSDs consume somewhere between 2 and 5 watts.
HDD drives are renowned for being loud. They require far more energy for chilling applications. Within a web server which includes lots of HDDs running continuously, you’ll need a good deal of fans to ensure they are cool – this may cause them a lot less energy–economical than SSD drives.
HDDs consume in between 6 and 15 watts.
5. CPU Power
The speedier the data access speed is, the sooner the file requests can be processed. Therefore the CPU do not need to arrange resources waiting for the SSD to reply back.
The standard I/O delay for SSD drives is barely 1%.
Compared with SSDs, HDDs enable not so quick data file accessibility rates. The CPU must wait around for the HDD to come back the demanded file, saving its allocations for the time being.
The standard I/O delay for HDD drives is around 7%.
6.Input/Output Request Times
The vast majority of our brand new machines are now using merely SSD drives. Our own lab tests have demonstrated that using an SSD, the average service time for any I/O request although performing a backup stays under 20 ms.
With the same server, but this time equipped with HDDs, the effects were different. The average service time for an I/O query changed in between 400 and 500 ms.
7. Backup Rates
Talking about backups and SSDs – we’ve noticed a substantual advancement in the back–up speed since we turned to SSDs. Currently, a typical web server data backup requires only 6 hours.
We made use of HDDs mainly for several years and we have excellent comprehension of exactly how an HDD functions. Backing up a hosting server equipped with HDD drives will take about 20 to 24 hours.
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