Difference between SSD, SSHD and HDD?

breadmont

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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

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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

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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

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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.
 
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