Difference between SSD, SSHD and HDD?

breadmont · Apr 22, 2015

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 · Apr 22, 2015

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 · Apr 22, 2015

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 · Apr 22, 2015

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 · Apr 22, 2015

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

Datacentreplus · Feb 22, 2017

Hosting utilising SSD would generally be faster and much better to use if you're concerned about performance.

If you need more space but not concerned about performance, HDD would be cost effective.

SSHD sits in between, not fully SSD, not completely a HDD either. It's bit of an odd one. It has its uses, but myself personally am not keen on using SSHDs.

SSHDs work by assuming the processes/programs that needs fast access would sit in the SSD portion of the drive, whilst the rest sits in the HHD part of the drive.
I have a problem with this allocation to what it thinks is non critical. That's what I understand from it anyway, unless they have changed considerably since. Either way, for performance, it also sits half way between HDD and SSD.

It would be better to simply get 1 SSD and 1HDD to compliment it.

Edit - Sorry to respond to your latest question. It would be best to just get in touch with your provider to find this out. It would be the simplest option I believe.

StartVM · Feb 26, 2017

I think all too often SSD is used as a buzz word as it relates to WEB HOSTING PLANS. No doubt it is significantly better under most circumstances in a VPS or Dedi, but for the vast majority of users with shared hosting plans, the difference between HDD vs SSD will be trivial.

HyperVMart · Mar 23, 2017

i think you should use enterprise grade SSD's, i personally don't think consumer grade ssd's are much better than normal hard drives, and people dont even use consumer grade hard drives for their servers, then why use normal ssd's for servers !! its just pointless as soon performance will degrade and you will be force to fully reformat your disks, and latter they will just DIE as normal SSD's are NOT rated for high disk writes endurance and that's a fact ...

Difference between SSD, SSHD and HDD?

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