For years there was just one single dependable way to keep info on your personal computer – using a hard drive (HDD). Nevertheless, this kind of technology is by now demonstrating its age – hard disks are actually loud and sluggish; they are power–hungry and have a tendency to generate a lot of warmth throughout serious procedures.
SSD drives, on the other hand, are really fast, consume significantly less power and are much cooler. They offer a completely new approach to file access and data storage and are years in advance of HDDs regarding file read/write speed, I/O efficiency and then energy efficiency. Observe how HDDs stand up up against the newer SSD drives.
1. Access Time
After the release of SSD drives, file access rates are now through the roof. Due to the brand new electronic interfaces used in SSD drives, the regular data access time has been reduced to a all–time low of 0.1millisecond.
HDD drives continue to use the very same general file access technique which was actually developed in the 1950s. Even though it was much enhanced consequently, it’s slow in comparison to what SSDs will provide. HDD drives’ data access speed ranges between 5 and 8 milliseconds.
2. Random I/O Performance
The random I/O performance is vital for the general performance of any file storage device. We’ve run substantial exams and have identified that an SSD can handle at least 6000 IO’s per second.
Throughout the very same lab tests, the HDD drives demonstrated to be much slower, with only 400 IO operations addressed per second. Although this may appear to be a good deal, if you have an overloaded web server that hosts a great deal of famous sites, a sluggish hard drive can lead to slow–loading web sites.
The absence of moving parts and rotating disks in SSD drives, and also the current improvements in electric interface technology have generated a considerably reliable file storage device, having an common failure rate of 0.5%.
As we have mentioned, HDD drives make use of rotating disks. And anything that utilizes numerous moving parts for lengthy time frames is more prone to failing.
HDD drives’ normal rate of failure ranges among 2% and 5%.
4. Energy Conservation
SSD drives operate practically silently; they don’t generate excessive warmth; they don’t call for extra cooling down alternatives and then use up significantly less power.
Lab tests have demonstrated the normal electrical power intake of an SSD drive is somewhere between 2 and 5 watts.
HDD drives are renowned for getting loud. They demand more power for cooling applications. On a hosting server containing a lot of HDDs running constantly, you need a good deal of fans to keep them cool – this may cause them far less energy–efficient than SSD drives.
HDDs consume in between 6 and 15 watts.
5. CPU Power
SSD drives support speedier file access rates, which, consequently, permit the CPU to complete data queries considerably quicker and then to return to different tasks.
The standard I/O wait for SSD drives is 1%.
As compared with SSDs, HDDs allow for slower data accessibility rates. The CPU is going to await the HDD to send back the requested data, scheduling its resources in the meantime.
The common I/O wait for HDD drives is about 7%.
6.Input/Output Request Times
In the real world, SSDs perform as admirably as they did during the trials. We ran an entire platform back up using one of the production servers. Over the backup operation, the typical service time for I/O queries was indeed below 20 ms.
During the same lab tests with the exact same hosting server, this time around suited out with HDDs, effectiveness was significantly slower. Throughout the server backup process, the normal service time for I/O requests ranged between 400 and 500 ms.
7. Backup Rates
Talking about backups and SSDs – we have discovered a substantual advancement in the back–up speed as we turned to SSDs. Today, a normal server data backup can take merely 6 hours.
We applied HDDs mainly for several years and we have excellent expertise in just how an HDD works. Generating a backup for a server designed with HDD drives will take about 20 to 24 hours.
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