At present, all of the new computing devices include SSD drives instead of HDD drives. One can find superlatives about them all around the specialised press – that they’re quicker and operate far better and that they are the future of home computer and laptop production.
Having said that, how can SSDs stand up in the web hosting world? Can they be dependable enough to substitute the proven HDDs? At Neteasy Hosting, we are going to help you better be aware of the differences among an SSD as well as an HDD and determine which one most closely fits you needs.
1. Access Time
After the introduction of SSD drives, data accessibility rates are now over the top. On account of the new electronic interfaces employed in SSD drives, the common file access time has been reduced to a all–time low of 0.1millisecond.
HDD drives rely on rotating disks for files storage purposes. Every time a file will be utilized, you will need to wait for the right disk to get to the right place for the laser to access the file in question. This translates into a regular access rate of 5 to 8 milliseconds.
2. Random I/O Performance
Because of the brand new revolutionary data storage method adopted by SSDs, they provide speedier data access speeds and speedier random I/O performance.
In the course of Neteasy Hosting’s lab tests, all of the SSDs demonstrated their capability to manage no less than 6000 IO’s per second.
During the very same trials, the HDD drives demonstrated to be considerably slower, with 400 IO operations addressed per second. Even though this might appear to be a good deal, when you have a hectic web server that hosts a great deal of well–known websites, a sluggish hard disk can lead to slow–loading web sites.
SSD drives are made to have as less moving components as is practical. They utilize an identical concept like the one utilized in flash drives and are more dependable compared to standard HDD drives.
SSDs provide an typical failing rate of 0.5%.
Since we already have mentioned, HDD drives depend on rotating disks. And anything that makes use of a great number of moving components for continuous amounts of time is more prone to failure.
HDD drives’ regular rate of failing varies among 2% and 5%.
4. Energy Conservation
SSD drives are far small compared to HDD drives as well as they lack just about any moving parts at all. It means that they don’t make as much heat and require much less power to work and less power for cooling down reasons.
SSDs use up between 2 and 5 watts.
As soon as they were built, HDDs have been quite electrical power–greedy equipment. Then when you’ve got a hosting server with several HDD drives, this will certainly boost the regular monthly electric bill.
On average, HDDs consume somewhere between 6 and 15 watts.
5. CPU Power
The faster the file accessibility rate is, the faster the file queries will likely be handled. This means that the CPU won’t have to reserve assets expecting the SSD to answer back.
The common I/O wait for SSD drives is only 1%.
When you use an HDD, you need to dedicate additional time watching for the results of one’s file ask. It means that the CPU will continue to be idle for much more time, awaiting the HDD to react.
The common I/O wait for HDD drives is approximately 7%.
6.Input/Output Request Times
In the real world, SSDs perform as perfectly as they managed for the duration of our testing. We ran an entire platform data backup using one of the production servers. Through the backup operation, the normal service time for I/O queries was under 20 ms.
All through the identical trials using the same web server, now fitted out with HDDs, performance was considerably reduced. During the web server data backup procedure, the typical service time for any I/O requests fluctuated somewhere between 400 and 500 ms.
7. Backup Rates
Speaking about back–ups and SSDs – we have detected a significant enhancement in the backup rate since we switched to SSDs. Currently, a standard hosting server back–up takes only 6 hours.
We made use of HDDs exclusively for a couple of years and we have now excellent understanding of precisely how an HDD performs. Backing up a server designed with HDD drives is going to take about 20 to 24 hours.
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