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Sean's SSD Buyers Guide & Information Thread - Page 184

post #1831 of 2376
Quote:
Originally Posted by Sean Webster View Post

depends on the attribute and the SSD manufacturer.
My SSD in my sig rig has Raw Read worst at 162 whereas the current is 166, Soft ECC connection is also 98 at worst and 100 at current, should I be concern about it?
post #1832 of 2376
Quote:
Originally Posted by Baghi View Post

My SSD in my sig rig has Raw Read worst at 162 whereas the current is 166, Soft ECC connection is also 98 at worst and 100 at current, should I be concern about it?

First, what is a "soft error"? Usually, a soft error is a data error that is not caused by a hardware (SSD, HDD) problem, thus it is "soft". A soft error is usually one bit that is incorrect for various reasons.

Errors of bits happen all the time, in RAM memory, in network data transfers, storage devices, etc. For years computer devices have had error correction capabilities (ECC for example), accomplished in several ways. This error correction works fine, otherwise our PCs would have all kinds of problems all the time.

You've been using your SSD, and occasionally there are a few bit errors, which is normal, and they are corrected. Think about that, the longer you use your SSD, the number of soft errors of course increases over time. The longer you use it, the more soft, correctable errors will accumulate as they are logged in that SMART attribute..

Given all this, of course the values of those SMART attributes will change over time, that is inevitable and normal.

The Raw Read Error Rate is counting the number of these soft errors, and the Soft ECC Correction Rate is just counting the correction rate. BTW, most SSD manufactures do not include those SMART attributes anymore, which just causes the owners to worry.

IF your SSD is not working correctly, then you might have a reason to be concerned, otherwise all is well.
post #1833 of 2376
Quote:
Originally Posted by parsec View Post

First, what is a "soft error"? Usually, a soft error is a data error that is not caused by a hardware (SSD, HDD) problem, thus it is "soft". A soft error is usually one bit that is incorrect for various reasons.

Errors of bits happen all the time, in RAM memory, in network data transfers, storage devices, etc. For years computer devices have had error correction capabilities (ECC for example), accomplished in several ways. This error correction works fine, otherwise our PCs would have all kinds of problems all the time.

You've been using your SSD, and occasionally there are a few bit errors, which is normal, and they are corrected. Think about that, the longer you use your SSD, the number of soft errors of course increases over time. The longer you use it, the more soft, correctable errors will accumulate as they are logged in that SMART attribute..

Given all this, of course the values of those SMART attributes will change over time, that is inevitable and normal.

The Raw Read Error Rate is counting the number of these soft errors, and the Soft ECC Correction Rate is just counting the correction rate. BTW, most SSD manufactures do not include those SMART attributes anymore, which just causes the owners to worry.

IF your SSD is not working correctly, then you might have a reason to be concerned, otherwise all is well.
Thank you so much. This gave me a huge relief because, as you said, the number is increasing (decreasing in this case) over time (as of writing this, Read Error worst 120, and Correction worst 73). Cheers! thumb.gif
Edited by Baghi - 12/19/13 at 4:22pm
post #1834 of 2376
Great, if I can relieve your concern, I did something worthwhile!

I should say that when I said bit errors happen all the time, the number of bits that are wrong compared to those that are correct is very, very small. While billions of bits of data can be moving around in a few seconds, we might be alarmed if we saw one bit error every minute or even hour. Since they are corrected, we have nothing to worry about.

I forgot to tell you to just check the "Uncorrectable Soft Read Error..." attribute. It is the errors that cannot be corrected that will cause problems, which we would probably notice before we checked the SMART data.
post #1835 of 2376
Yup very helpful indeed. Sean seems to be quite busy, but alas, I'm relieved now thanks to you. I would have hate to pull out my SSD off a working system. thumb.gif
post #1836 of 2376
Quote:
Originally Posted by Baghi View Post

Yup very helpful indeed. Sean seems to be quite busy, but alas, I'm relieved now thanks to you. I would have hate to pull out my SSD off a working system. thumb.gif

Thanks for that.

Well let's see, Sean is a university student, that just finished his final exams, and now is likely taking a break. He may even be traveling to visit family, and it's the holiday season in the USA. So he's been busy and is now busy in another way... cheers.gif
post #1837 of 2376
hey guys, my samsung evo 120gb ssd came today to replace my hdd 250gb thats loud and slow, I know all i need to do is install Windows on it just like i did with my 250gb right?

thanks
post #1838 of 2376
Quote:
Originally Posted by faction87 View Post

hey guys, my samsung evo 120gb ssd came today to replace my hdd 250gb thats loud and slow, I know all i need to do is install Windows on it just like i did with my 250gb right?

thanks

i have windows install on usb flash drive btw.
post #1839 of 2376
You can do that or you can image the HDD to the SSD.

Also, Sean's new avatar is fantastic.
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Triumvirate
(20 items)
 
Osmium
(8 items)
 
For Sale: [FS] Z97 system: Xeon and RAM
$160 (USD) or best offer
CPUMotherboardRAMHard Drive
AMD A10-7870K ASRock FM2A88X-ITX+ G.Skill Ripjaws X - 2x4GB @ 2400MT/s Samsung 840 120GB 
CoolingOSPowerCase
Evercool EC-HPS-810CP Windows 7 Pro 64-bit PicoPSU-120-WI-25 Mini-Box M350 
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post #1840 of 2376
is it important to install the software that came with it? or doesnt matter
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