For years there was only one reputable method to keep info on a pc – utilizing a hard disk drive (HDD). Having said that, this kind of technology is by now showing its age – hard disks are actually noisy and sluggish; they are power–ravenous and frequently produce a great deal of heat throughout intense operations.
SSD drives, however, are fast, consume a smaller amount energy and are also far less hot. They furnish a brand new solution to file accessibility and data storage and are years ahead of HDDs with regard to file read/write speed, I/O operation and power effectivity. See how HDDs stand up up against the more recent SSD drives.
1. Access Time
SSD drives give a fresh & progressive solution to file storage using the use of electronic interfaces as an alternative to any sort of moving parts and rotating disks. This brand–new technology is considerably quicker, making it possible for a 0.1 millisecond data file accessibility time.
HDD drives still makes use of the very same basic data access technique that was originally created in the 1950s. Despite the fact that it has been considerably improved since that time, it’s slower when compared with what SSDs are providing. HDD drives’ file access rate ranges in between 5 and 8 milliseconds.
2. Random I/O Performance
Caused by the new radical data storage strategy shared by SSDs, they furnish swifter data access speeds and swifter random I/O performance.
During The Web Hosting Team’s tests, all of the SSDs showed their capacity to handle a minimum of 6000 IO’s per second.
All through the very same tests, the HDD drives turned out to be significantly slower, with simply 400 IO operations managed per second. Even though this may appear to be a good deal, when you have a busy web server that hosts lots of popular web sites, a slow disk drive may result in slow–loading websites.
SSD drives do not have any kind of moving parts, meaning there’s far less machinery inside them. And the less physically moving parts you will discover, the fewer the probability of failing can be.
The regular rate of failing of any SSD drive is 0.5%.
Since we have mentioned, HDD drives use rotating hard disks. And something that takes advantage of lots of moving elements for prolonged intervals is vulnerable to failing.
HDD drives’ common rate of failure ranges among 2% and 5%.
4. Energy Conservation
SSD drives are much small compared to HDD drives as well as they lack any kind of moving parts whatsoever. Consequently they don’t create so much heat and need less power to operate and fewer power for cooling down reasons.
SSDs consume amongst 2 and 5 watts.
HDD drives are notorious for being noisy; they’re prone to heating up and if there are several hard drives inside a web server, you have to have an extra cooling unit simply for them.
As a whole, HDDs use up in between 6 and 15 watts.
5. CPU Power
As a result of SSD drives’ greater I/O functionality, the leading server CPU can work with data requests more rapidly and preserve time for different operations.
The regular I/O wait for SSD drives is exactly 1%.
Compared with SSDs, HDDs allow for slower data file accessibility rates. The CPU will need to wait around for the HDD to come back the requested data, scheduling its resources meanwhile.
The average I/O delay for HDD drives is approximately 7%.
6.Input/Output Request Times
In the real world, SSDs perform as perfectly as they managed throughout The Web Hosting Team’s checks. We ran a complete system backup using one of our own production machines. All through the backup process, the typical service time for any I/O calls was basically below 20 ms.
During the very same lab tests using the same web server, now equipped out utilizing HDDs, overall performance was significantly slow. All through the server data backup process, the average service time for any I/O calls ranged between 400 and 500 ms.
7. Backup Rates
You can easily feel the real–world potential benefits to using SSD drives each and every day. By way of example, on a hosting server pre–loaded with SSD drives, a full data backup can take only 6 hours.
Alternatively, with a hosting server with HDD drives, an identical data backup will take 3 to 4 times as long to finish. A full backup of any HDD–powered server normally takes 20 to 24 hours.
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