What is the difference between SSD and SSD-Cached?

[Maxwell]

Hi everyone,

Can you tell me what is the difference between SSD and SSD-Cached?
see around some VPS packages offering and these features included in some package but I really don't understand between 2 these terms and which is more advantages?

Any advice

 

[TeoC NETCreator]

A HDD with an SSD cache on it will be slightly faster than a HDD.

A SSD Cache (separate drive) works along normal HDD. It can speed up load times and softwares programs that you regularly use. It copy the load files onto the SSD cache.

A pure SSD is great. It is much faster than a normal HDD, or than a HDD with SSD Cache.

The pure SSD is expensive than a normal HDD, or than a HDD with SSD Cache because it works much faster. For example, for our VPS servers we use SSD storage with guaranteed speeds.

 

[tanveerhabib]

tanveerhabib

I also wanted to know the difference and your explanation is worth seeing. And it helped me to understand the difference easily.

 

[hoangvu]

Great definitions. Thanks TeoC :thumb:
So, we should choose a pure SSD for normal use or when should we choose SSD cache for purposes?

 

[TeoC NETCreator]

TeoC NETCreator

Let's say you have a server or a simple computer which has a HDD of 500GB installed on and you haven't enough money to buy SSD, because SSD (of 500GB) is too expensive for you, then you should choose SSD cache.

If you can choose pure SSD, do it.

We are using SSD for our OpenVZ VPS plans for over an year and it really makes the difference. Speed, duration, reliability and much more.

Solid State Drives (SSD) are shock resistant up to 1500g/0.5ms. Hard Drives consist of various moving parts making them susceptible to shock and damage. So, SSD is more durable than HDD.

SSD can have 100 times greater performance, quicker boot ups and faster file transfers than HDD. So, SSD is faster than HDD.

SSD use significantly less power -> less than 2W (HDD: 6W). So, SSD consume less power than HDD.

Remember: SSD is cost efficient because one SSD delivers the performance of 100 hard drives (though it has a higher price per gigabyte than HDD).