was about to buy ssd, and now I have my doubts

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I was about to fork out the cash to get the OCz 2E 120gb drive.

I rationalised it down to the fact that I'm able to use it indefinately in future, where as most mechanical drives fail over time.

Then I read this in a private forum by a user, do you guys know if there is any merit to it at all? He's basically saying that sds will lose performace over time, and eventually halt to a grind as there's only so many times it can be written over.

Conn - I hope you'll read this as coming from an electrical engineer which was my first career.

SSD's are only half baked at this point. Transistors - even micro-sized ones as FETS on a chip, have a limited life. They can only transition states (binary 1/0) so many times. Therefore every SSD manufacturer has implemented different strategies to overcome this self-destructing nature of the drives. This creates various data blocks and allocation issues on the drives. All workable just not optimal.

Bottom line: if you use SSDs for data (like RAM) the drive will become useless over time. The harder you use the drive the faster it will self destruct. SSDs are best used for the system drive - bootup and programs that change very little over time. I do believe you get improved performance using them for that purpose.

However, I've seen results where Rapture disks and current advanced spinning media have 90% of SSDs performance at 20% of the price. There is a lot of technical websites out there that you can get good advice from. Worth a read.

Speed is IMO only a part of the equation. Power consumption, reliability, and data protection need to also be considered. For me, who would only use an SSD for the system bootup function those issues are unimportant - or at least at parity with spinning media.

Good luck...MS

Conn - I haven't studied the schematics of the technology since last year. The kinks I know they were working on were the fact that over time hard drive space actually diminished as part of the process to refresh and allocate transistor usage. I'm sure that has been optimized.

I'll look at it again since Intel's comment intrigues me as an engineer. Frankly this is a physics thing - a limitation of the materials and construction of IC circuits. Since we don't have technology past that I'm not sure how it could be solved. It's like miniaturization. You still need a certain amount of molecules to construct the circuit. So until you change the underlying technology or figure out string theory there will be a limitation to how far you can progress.

Let me give you another example: the reason that science fiction talks about 'biological machines." The greatest advances and research seem to be coming from modeling biological processes for electronics (actual use of organic materials instead of inactive compounds) - almost a return to analog. Storage devices that can capture a range of data (say from one to nine) instead of binary in a single unit. Just like your nerves can register pain in various degrees, not on/off.

GB made great points I hadn't considered: a laptop. I'm curious and will also research power consumption and durability. While SSD might be more impervious to physical damage I question their reliability under electrical duress.

If Intel puts their money (warranty) behind their words go for it. Then you can't lose. As to the rest, I'll get back to you...MS
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Okay I looked into this. The problem remains that the transistors do wear out. What exacerbated that problem was data had to be changed in large blocks. If you had a bit change an entire memory section of 128,000 bits had to be rewritten. Apparently Intel's new controller minimizes that problem. Based on the 'electronic' wear of SSD's and the 'mechanical' wear of spinning media both should have similar life expectancies.

The only issue now is price and scalability. The density of spinning media has not been equaled by SSD nor has price. The article link below give you the raw performance data to consider if the benefits outwieght the cost.

As the author points out SSDs are much more reliable and rugged than spinning media and are used in critical and military applications. This has me reconsidering an SSD for my laptop.

Here is a good and recent article at one of my go to technology sites:

I guess there is a workaround to this, limit the amount of writing to the mechanical drive and use the SSD for windows only.

However this means that sdd isn't a great option for netbook users with only one hard drive enclosure.

AND

I can't think of many programs that don't do some level of writing, windows live, firefox, word, etc all write very small files and use caching intensively.

WIndows uses a large swap file..

If you put all these files onto a mechanical drive, it kinda defeats the purpose of ssd as you'll have to put a lot of the regularly used files onto mechanical drives.
 
an ssd will last you 5 years at least even if you use it a lot

this has been discussed many times on this forum

im confident mine will last a good few years i do a lot of torrenting on mine
 
While that's true, it only applies after many millions of write operations, which, for average users, means it'll last around 10 years or more. Power users less, but no less than 5 years. Are you using any HDDs that old?
 
also, the drive will still be useable, u'll be able to continue to read anything off it, just not write over it.

performance degradation is no longer an issue with trim
 
To be fair as well wanting an ssd to last 5 years is all fine and dandy, but I think most enthusiasts will replace their entire system before that.
 
And in probably 3 years or less, the SSD's of today will be old technology and you'll be able to buy a new SSD of the same size(probably much bigger) and much faster for a couple of tenners :). So they'll be binned for new tech before they expire
 
I am still waiting for them to come down in price a bit more, nearly proceeded through to checkout a few times but resisted.
 
If you use your SSD normally, for your OS and the day to day stuff that we all do then you will have no problems what so ever. But if you are one of those lads that feel the need to benchmark their SSD every two hours to check if the performance has dipped then you are better served by not buying a SSD.

I own a good couple of SSD drives for my home PC's and I own even more for use with my benching which is my main hobby. And those that are in the family HTPC system, or those SSD's which are the primary disc in all the other PC's in our house - and not one has given me any cause to regret. Not for one moment.

Benching your SSD repeatedly will shorten the life expectancy of the drive. Using it normally will not.
 
Yes, it will kill itself over time due to a limited number of switches that each transistor can make, but so will a CPU, a GPU, a NB chip, etc, etc, does that stop you buying any of those? No, because the usable lifetime of the transistors, is much longer than the length of time people use it for, for example (made up numbers, but gives you the idea) if a chip will kill itself after 5 years use, you will have replaced it within 3 years due to better performing, and cheaper versions being available.
 
My vertex 1 states a MTBF of 1,500,000 hours.

Thats 171 years. I have no idea how ocz managed to work that one out.... but it's certainly a lot better than mechanical drives.

They come with a 2 or 3 year warranty...... and I'm sure within that time the ssd's we're using now will be considered small and slow.
 
My vertex 1 states a MTBF of 1,500,000 hours.

Thats 171 years. I have no idea how ocz managed to work that one out.... but it's certainly a lot better than mechanical drives.

They come with a 2 or 3 year warranty...... and I'm sure within that time the ssd's we're using now will be considered small and slow.

The MTBF on the packaging is misleading and meant to apply to the enterprise community and applies to electrical component failure and not cell wear, which is what people are concerned about. The warranty does not cover cell wear.

Like it was said above though, by the time a new drive like the Vetex 2 fails, the next few generations sould be pretty cheap, at least compared to the price you pay for a certain size today.
 
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