Monday, 11 December 2017

SSD (Solid State Drive) vs HDD (Hard disk drive) as Fast As Possible

Hello my friends, Welcome to Aky’s Technoworld, the coolest texture on the web.

Which is better an SSD or a hard drive? Honestly it's sort of like asking which is better a motorcycle or a semi-truck? Alright so you might be sitting there going that's a weird thing to say Aky, why would you say something like that? And my answer is because they're really not that comparable, they're just different.

Let's start with performance when it comes to raw speed SSDs are faster. I see many folks comparing the sequential speed of an SSD to the sequential speed of a hard drive and say, “oh well they're kind of similar”. But the reality of it is unless you copy large files back and forth all day this specification is pretty much meaningless. I'm serious, it has nothing to do with the way that they will do that you will perceive the performance in the real-world.

SSDs are all about little data transactions that happen all the time all over the place when you're running something like an operating system on them or You know an instant message comes through or a program launches and many other process, it needs to access a ton of little files all over the place. These are the times when not having to physically move ahead across a disk allows an SSD to utterly destroy a hard drive in terms of performance. In system responsiveness any modern SSD will be easily several times faster than any hard drive and sometimes much more than that.

Ok that's great but, what if you have lots of data to store and that's your main concern. It's not like playing back video or music files or looking at your archive of pictures requires blazing fast performance. So this is where hard drives still excel at the time of filming these 160 dollars buys you either a 256 GB SSD or a 4 TB. Yes, a 16 times larger hard drive. For that kind of difference in price per GB, you could literally build two hard drive based storage boxes and have one of them set up as an off-site backup with the money that you saved by not using an SSD based backup solution. So, yes folks for mass storage of data we are a long way away from hard drives being replaced by SSDs.

Okay but what about reliability? Now this one's a little bit complicated. Hard drives are pretty reliable these days. But as devices with moving parts they will die eventually. The good news is they usually give warning signs like, if your hard drive is making clicking noises right now. But the bad news is that any kind of use will wear them out. For SSDs reading from them a lot won't really wear them out very much especially if you keep them running cool. But, if you write to them heavily you can kill a consumer-grade model relatively quickly. 

So I guess I'd put it this way. In an environment where shock is an everyday occurrence such as in a notebook or tablet I would choose SSD every time. In an environment where that's not the case, then reliability to me is a secondary factor after I determine my performance and storage needs. It leads us to the in-between solution hybrid drives. These leverage the technology of hard drives and SSDs at the same time.

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