For many years there seemed to be only 1 reliable path to keep info on a pc – working with a hard disk drive (HDD). Nevertheless, this kind of technology is by now showing its age – hard disk drives are noisy and slow; they can be power–hungry and frequently generate lots of warmth during serious operations.
SSD drives, alternatively, are quick, consume a lot less power and are far less hot. They offer an innovative strategy to file accessibility and data storage and are years in front of HDDs with regards to file read/write speed, I/O effectiveness and also energy capability. See how HDDs stand up against the more recent SSD drives.
1. Access Time
After the introduction of SSD drives, data accessibility speeds are now through the roof. As a result of brand new electronic interfaces used in SSD drives, the regular data access time has shrunk into a record low of 0.1millisecond.
HDD drives continue to work with the same general data access concept which was actually developed in the 1950s. Even though it has been significantly upgraded after that, it’s sluggish compared with what SSDs will provide. HDD drives’ data access speed can vary in between 5 and 8 milliseconds.
2. Random I/O Performance
The random I/O performance is extremely important for the efficiency of a file storage device. We have executed extensive lab tests and have determined that an SSD can manage no less than 6000 IO’s per second.
Hard drives present slower data file access rates as a result of aging file storage space and access technology they are using. In addition, they demonstrate substantially slower random I/O performance as compared to SSD drives.
In the course of our trials, HDD drives managed on average 400 IO operations per second.
SSD drives don’t have just about any rotating parts, which means that there is a lot less machinery within them. And the fewer actually moving parts you will find, the fewer the prospect of failing will be.
The normal rate of failure of an SSD drive is 0.5%.
As we have previously noted, HDD drives make use of rotating hard disks. And anything that makes use of a large number of moving components for prolonged time periods is more likely to failing.
HDD drives’ common rate of failure varies somewhere between 2% and 5%.
4. Energy Conservation
SSD drives work almost silently; they don’t produce surplus heat; they don’t demand extra cooling alternatives and consume less power.
Tests have shown the average power usage of an SSD drive is somewhere between 2 and 5 watts.
From the time they were created, HDDs have been extremely electrical power–ravenous products. When you have a server with several HDD drives, this can raise the regular electric bill.
Typically, HDDs take in in between 6 and 15 watts.
5. CPU Power
Because of SSD drives’ better I/O performance, the key server CPU will be able to work with file queries more quickly and preserve time for different functions.
The standard I/O wait for SSD drives is only 1%.
Compared to SSDs, HDDs enable not so quick file access speeds. The CPU will be required to wait for the HDD to send back the requested data file, saving its allocations meanwhile.
The standard I/O delay for HDD drives is approximately 7%.
6.Input/Output Request Times
It is time for a few real–world cases. We ran a complete system backup on a server using only SSDs for data storage uses. In that operation, the regular service time for an I/O query kept below 20 ms.
In comparison to SSD drives, HDDs provide substantially reduced service rates for input/output queries. During a hosting server backup, the common service time for an I/O call can vary somewhere between 400 and 500 ms.
7. Backup Rates
A different real–life improvement is the rate with which the backup was developed. With SSDs, a server back up today can take under 6 hours implementing our hosting server–optimized software solutions.
We implemented HDDs mainly for a couple of years and we have now excellent familiarity with precisely how an HDD performs. Backing up a server furnished with HDD drives will take about 20 to 24 hours.
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