Difference between SSD, SSHD and HDD?

[breadmont]

Could you tell me what is the difference between SSD, SSHD and HDD?
I saw these when viewing any hosting packages but I don't really understand them what they are.

 

[RDO Servers]

SSD = Solid State Drive
SSHD = Solid State Hybrid Drive
HDD= Hard Disk Drive

A HDD is a traditional spinning hard disk. Cheap to buy, but effective.
A SSHD is a HDD with a small amount of SDD in it. The drive itself desides when/how to use to SSD.
A SSD does not have any moving part and is has MUCH faster read/write speeds.

If you are using any databases, SSD can make a big difference.

 

[breadmont]

Thanks for awesome explanation!

So I should choose SSD for my hosting but why it makes big difference when I use databases

If you are using any databases, SSD can make a big difference.

I don't understand this.

 

[RDO Servers]

The difference is in the number of IOPS (Input/Output Operations Per Second)

A SSD has 4 to 5 times the number of IOPS. When your site is reading and writing to a database, you can end up with with IO becoming a bottleneck in your site speed.

 

[RDO Servers]

What kind if site do you have? Are you having performance issues?