SSDs vs HDDs
Explore the Pro’s and Con’s of HDD and SSD drives
For many years there seemed to be one reliable method to keep info on a personal computer – having a disk drive (HDD). Having said that, this kind of technology is already showing it’s age – hard disk drives are actually noisy and slow; they’re power–ravenous and have a tendency to produce quite a lot of warmth in the course of intense operations.
SSD drives, in contrast, are quick, consume significantly less power and are much cooler. They provide a whole new approach to file access and data storage and are years ahead of HDDs when considering file read/write speed, I/O efficiency and power capability. See how HDDs stand up up against the more recent SSD drives.
1. Access Time
With the arrival of SSD drives, file accessibility rates have gone over the top. As a result of new electronic interfaces used in SSD drives, the typical data file access time has been reduced to a record low of 0.1millisecond.
HDD drives depend on spinning disks for files storage applications. When a file will be used, you will need to wait for the right disk to reach the right place for the laser beam to reach the data file you want. This results in a standard access rate of 5 to 8 milliseconds.
2. Random I/O Performance
The random I/O performance is critical for the functionality of any data file storage device. We have conducted substantial tests and have identified an SSD can deal with no less than 6000 IO’s per second.
Throughout the very same trials, the HDD drives demonstrated that they are significantly slower, with 400 IO operations managed per second. Although this might appear to be a great number, for those who have a busy server that contains a lot of famous websites, a sluggish hard drive can cause slow–loading sites.
3. Reliability
The absence of moving elements and spinning disks within SSD drives, and the recent developments in electric interface technology have resulted in a much risk–free data file storage device, having an common failure rate of 0.5%.
As we have previously documented, HDD drives depend on rotating disks. And anything that takes advantage of numerous moving components for continuous amounts of time is at risk from failure.
HDD drives’ typical rate of failure can vary among 2% and 5%.
4. Energy Conservation
SSDs do not have moving elements and require little or no cooling down energy. Additionally they call for not much power to operate – trials have demostrated they can be powered by a normal AA battery.
In general, SSDs take in between 2 and 5 watts.
HDD drives are renowned for becoming loud; they’re liable to getting hot and in case you have several disk drives in one web server, you have to have a different air conditioning device used only for them.
All together, HDDs consume somewhere between 6 and 15 watts.
5. CPU Power
SSD drives enable quicker data file accessibility speeds, that, in turn, allow the processor to perform data calls much quicker and then to go back to additional jobs.
The average I/O wait for SSD drives is barely 1%.
When using an HDD, you will need to dedicate time awaiting the outcome of your data call. It means that the CPU will remain idle for additional time, looking forward to the HDD to respond.
The typical I/O delay for HDD drives is about 7%.
6.Input/Output Request Times
In the real world, SSDs perform as admirably as they have throughout the trials. We produced a complete system backup on one of our production web servers. Throughout the backup procedure, the common service time for I/O queries was indeed under 20 ms.
In contrast to SSD drives, HDDs provide significantly reduced service times for I/O queries. During a server backup, the common service time for an I/O request can vary between 400 and 500 ms.
7. Backup Rates
You’ll be able to check out the real–world advantages of having SSD drives day after day. For example, with a web server with SSD drives, a complete back–up will take simply 6 hours.
On the other hand, on a hosting server with HDD drives, a similar data backup normally takes 3 to 4 times as long in order to complete. A complete back–up of any HDD–driven server may take 20 to 24 hours.
To be able to easily boost the functionality of your web sites with no need to transform any kind of code, an SSD–powered web hosting solution will be a excellent choice. Look at our Linux cloud hosting – our services feature extremely fast SSD drives and are offered at cheap prices.
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