For many years there was a particular reliable method to keep information on a laptop – working with a disk drive (HDD). Nonetheless, this sort of technology is already expressing it’s age – hard drives are really noisy and sluggish; they are power–ravenous and tend to generate a great deal of heat for the duration of intensive procedures.
SSD drives, however, are extremely fast, use up a lesser amount of energy and are generally far less hot. They feature a completely new way of file access and data storage and are years ahead of HDDs with regard to file read/write speed, I/O effectiveness and also power efficacy. Find out how HDDs stand up against the modern SSD drives.
1. Access Time
After the introduction of SSD drives, data access rates have gone through the roof. With thanks to the unique electronic interfaces made use of in SSD drives, the typical file access time has shrunk towards a all–time low of 0.1millisecond.
HDD drives continue to use the very same basic data file access technique that’s originally created in the 1950s. Even though it was noticeably enhanced since then, it’s slower in comparison to what SSDs will offer. HDD drives’ data file access speed ranges somewhere between 5 and 8 milliseconds.
2. Random I/O Performance
Resulting from the completely new radical file storage approach incorporated by SSDs, they provide faster file access speeds and quicker random I/O performance.
In the course of beReveal’s lab tests, all SSDs revealed their ability to handle no less than 6000 IO’s per second.
Hard drives offer reduced data access rates because of the older file storage and access technology they are by making use of. Additionally they show substantially sluggish random I/O performance as compared to SSD drives.
Throughout beReveal’s trials, HDD drives maintained on average 400 IO operations per second.
SSD drives don’t have any sort of moving components, meaning that there is a lot less machinery included. And the fewer literally moving elements you will find, the lower the prospect of failure can be.
The normal rate of failure of an SSD drive is 0.5%.
As we already have mentioned, HDD drives depend on rotating disks. And anything that employs lots of moving elements for lengthy periods of time is more prone to failing.
HDD drives’ typical rate of failure varies among 2% and 5%.
4. Energy Conservation
SSD drives are far smaller than HDD drives as well as they don’t possess just about any moving components whatsoever. Consequently they don’t make as much heat and require a lot less electricity to work and much less energy for chilling reasons.
SSDs take in somewhere between 2 and 5 watts.
From the second they have been developed, HDDs have been extremely energy–hungry equipment. Then when you have a server with many HDD drives, this will add to the monthly electricity bill.
On average, HDDs consume in between 6 and 15 watts.
5. CPU Power
SSD drives enable a lot faster data file accessibility speeds, which generally, subsequently, enable the processor to perform data requests considerably quicker and to return to other responsibilities.
The average I/O wait for SSD drives is simply 1%.
In comparison with SSDs, HDDs permit slower data file access rates. The CPU is going to wait for the HDD to send back the inquired data file, saving its resources for the time being.
The normal I/O wait for HDD drives is around 7%.
6.Input/Output Request Times
In the real world, SSDs conduct as wonderfully as they performed during our checks. We produced an entire system data backup using one of our own production servers. Through the backup operation, the typical service time for any I/O calls was basically under 20 ms.
With the exact same hosting server, yet this time furnished with HDDs, the effects were different. The regular service time for any I/O request changed in between 400 and 500 ms.
7. Backup Rates
Discussing back ups and SSDs – we have observed a great advancement in the data backup speed since we transferred to SSDs. Right now, a regular server data backup takes simply 6 hours.
We applied HDDs mainly for several years and we have great understanding of exactly how an HDD runs. Generating a backup for a server equipped with HDD drives can take about 20 to 24 hours.
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