For decades there was a particular trustworthy method to keep data on your computer – utilizing a hard disk drive (HDD). On the other hand, this kind of technology is already showing it’s age – hard disk drives are really loud and slow; they are power–hungry and are likely to create a lot of heat for the duration of intensive operations.
SSD drives, alternatively, are really fast, consume way less power and are much cooler. They furnish a new method of file accessibility and data storage and are years in front of HDDs relating to file read/write speed, I/O effectiveness and power efficiency. Discover how HDDs fare up against the more recent SSD drives.
1. Access Time
Resulting from a radical new solution to disk drive performance, SSD drives permit for noticeably faster data access rates. Having an SSD, data access instances are far lower (only 0.1 millisecond).
The technology driving HDD drives times back to 1954. And while it’s been substantially polished throughout the years, it’s nonetheless can’t stand up to the revolutionary technology powering SSD drives. Using today’s HDD drives, the very best file access rate you can achieve may differ somewhere between 5 and 8 milliseconds.
2. Random I/O Performance
The random I/O performance is very important for the general performance of a data storage device. We’ve conducted in depth testing and have established an SSD can handle no less than 6000 IO’s per second.
With an HDD drive, the I/O performance progressively enhances the more you use the hard drive. Having said that, in the past it extends to a particular restriction, it can’t go quicker. And due to the now–old concept, that I/O limitation is much below what you might find with a SSD.
HDD can only go as far as 400 IO’s per second.
The lack of moving parts and spinning disks within SSD drives, as well as the current advancements in electrical interface technology have led to a considerably less risky data file storage device, having an normal failure rate of 0.5%.
HDD drives employ rotating hard disks for saving and reading through files – a technology since the 1950s. Along with hard disks magnetically hanging in the air, rotating at 7200 rpm, the probability of something failing are considerably increased.
The standard rate of failing of HDD drives varies among 2% and 5%.
4. Energy Conservation
SSDs don’t have any moving elements and require minimal cooling down power. Additionally, they need a small amount of energy to perform – tests have demonstrated that they’ll be powered by a normal AA battery.
In general, SSDs consume amongst 2 and 5 watts.
HDD drives can be infamous for becoming noisy; they are at risk from overheating and whenever there are several disk drives in one web server, you will need an extra cooling unit just for them.
All together, HDDs take in in between 6 and 15 watts.
5. CPU Power
The quicker the data file accessibility rate is, the faster the data file queries will likely be processed. Consequently the CPU do not need to reserve allocations waiting for the SSD to reply back.
The average I/O wait for SSD drives is actually 1%.
HDD drives permit sluggish access rates when compared with SSDs do, resulting in the CPU needing to wait around, whilst reserving assets for the HDD to find and give back the demanded file.
The common I/O wait for HDD drives is approximately 7%.
6.Input/Output Request Times
In the real world, SSDs carry out as wonderfully as they performed in the course of our tests. We competed a complete system data backup on one of our own production web servers. Throughout the backup procedure, the common service time for I/O demands was basically below 20 ms.
Sticking with the same web server, however, this time loaded with HDDs, the outcome were completely different. The regular service time for an I/O request fluctuated between 400 and 500 ms.
7. Backup Rates
Referring to back ups and SSDs – we have found an effective improvement with the data backup speed since we switched to SSDs. Now, a normal web server back up takes just 6 hours.
On the flip side, with a hosting server with HDD drives, the same data backup might take 3 to 4 times as long to finish. An entire back–up of an HDD–driven hosting server often takes 20 to 24 hours.
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