For years there was only 1 trustworthy way to store data on a computer – having a hard disk drive (HDD). On the other hand, this type of technology is already demonstrating it’s age – hard disk drives are really loud and slow; they can be power–ravenous and are likely to generate a lot of heat during intense operations.
SSD drives, in contrast, are swift, consume far less power and are much cooler. They furnish a whole new method of file accessibility and storage and are years in advance of HDDs in relation to file read/write speed, I/O performance as well as power effectivity. Figure out how HDDs fare up against the modern SSD drives.
1. Access Time
Resulting from a revolutionary new method of disk drive functionality, SSD drives make it possible for much faster data file access speeds. Having an SSD, data access instances are far lower (as small as 0.1 millisecond).
HDD drives continue to use the same fundamental data file access technology that’s initially developed in the 1950s. Though it was noticeably advanced consequently, it’s sluggish compared to what SSDs are offering to you. HDD drives’ data file access speed varies in between 5 and 8 milliseconds.
2. Random I/O Performance
The random I/O performance is crucial for the operation of any data storage device. We have carried out substantial exams and have identified that an SSD can deal with at the least 6000 IO’s per second.
Hard drives present slower data access speeds due to older file storage and accessibility technology they are using. Additionally they exhibit noticeably sluggish random I/O performance matched against SSD drives.
During INTELLILOCK’s tests, HDD drives addressed typically 400 IO operations per second.
SSD drives do not have any sort of moving elements, meaning there’s much less machinery inside them. And the less literally moving elements you’ll find, the fewer the prospect of failure will be.
The typical rate of failing of an SSD drive is 0.5%.
For an HDD drive to work, it needs to spin a few metal disks at over 7200 rpm, retaining them magnetically stable in mid–air. There is a number of moving parts, motors, magnets along with other devices loaded in a small place. Hence it’s no surprise that the standard rate of failing of any HDD drive varies between 2% and 5%.
4. Energy Conservation
SSDs are lacking moving parts and need hardly any chilling power. Additionally they require not much power to function – lab tests have shown that they’ll be powered by a regular AA battery.
In general, SSDs use up amongst 2 and 5 watts.
From the minute they have been made, HDDs have invariably been quite power–heavy devices. Then when you’ve got a web server with different HDD drives, this will likely raise the regular monthly power bill.
On average, HDDs consume in between 6 and 15 watts.
5. CPU Power
The faster the file access rate is, the sooner the data requests will be processed. This means that the CPU will not have to reserve resources waiting for the SSD to answer back.
The standard I/O wait for SSD drives is only 1%.
Compared to SSDs, HDDs permit reduced file accessibility rates. The CPU will have to await the HDD to send back the demanded data file, scheduling its allocations in the meanwhile.
The common I/O wait for HDD drives is approximately 7%.
6.Input/Output Request Times
In the real world, SSDs operate as admirably as they managed throughout INTELLILOCK’s testing. We produced a complete system back up using one of our production web servers. All through the backup procedure, the average service time for I/O requests was in fact below 20 ms.
With the exact same web server, yet this time equipped with HDDs, the results were different. The regular service time for an I/O call changed somewhere between 400 and 500 ms.
7. Backup Rates
Speaking about backups and SSDs – we have found a great improvement in the backup rate as we moved to SSDs. Today, a regular web server data backup requires only 6 hours.
We made use of HDDs exclusively for several years and we have great familiarity with how an HDD runs. Creating a backup for a web server designed with HDD drives will take around 20 to 24 hours.
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