Is This Correct?

[orangecat]

Is the total host reads and writes correct?

 

[MeltyMoon]

I would really love to say no? After ~10 TB of writes...I think the SSD would be dead  :blink:

[whatthe_fuzz]

most SSDs can do 20TB and then start to degrade. what do you have on their that mad up 6TB of reads??

[MrSuperb]

I would really love to say no? After ~10 TB of writes...I think the SSD would be dead  :blink:

WHAT? For an 120GB TLC SSD it would be around 128 TB. For a MLC SSD more like 300-500TB (if not more)

[orangecat]

I would really love to say no? After ~10 TB of writes...I think the SSD would be dead  :blink:

Thats what i was thinking.

[orangecat]

most SSDs can do 20TB and then start to degrade. what do you have on their that mad up 6TB of reads??

I don't know thats why I am wondering why I have more writes then reads.

[whatthe_fuzz]

I don't know thats why I am wondering why I have more writes then reads.

 

that is a ton of information! have you reformatted or bought this used?

[orangecat]

that is a ton of information! have you reformatted or bought this used?

I have reformatted a bunch of times but i rarely write to my SSD when using windows.

[alpenwasser]

Is the total host reads and writes correct?

[...img...]

 

What specifically makes you think it wouldn't be?

If you take the amount of data written and read in relation to the power-on hours you

get:

• ~1.75 GB of writes per hour
• ~1.1 GB of reads per hour

which really isn't all that much IMO.

 

I would really love to say no? After ~10 TB of writes...I think the SSD would be dead  :blink:

 

 

most SSDs can do 20TB and then start to degrade.

 

Holy crap that would be some horrible SSDs methinks! :o

(Or have I been misinformed?)

 

WHAT? For an 120GB TLC SSD it would be around 128 TB. For a MLC SSD more like 300-500TB (if not more)

I've found this article in which they did a torture test on a Samsung 840 with TLC chips. They

got several 100 TB out of the drive before getting errors if I've read correctly. I'm not an

absolute expert on SSDs, so if there's a serious flaw in their methodology I might have overlooked

that, but from what I can tell it seems to be at least a somewhat decent indicator/example.

EDIT: I've been digging through their numbers:

[...]the first broken sectors were reported after 2945 cycles, as mentioned above. At that moment,

we had written over 726000 GiB (or over 779538 GB) to the SSD. Given a normal use of 10 GB of written

data per day, this means that the SSD would last for more than 198 years.

[...]

If we take the 764 TiB and an average of 10 GiB of writes per day, we arrive at a lifespan of 214 years.

Keep in mind that we sequentially write and fill the SSD which gives us write amplification factor of only

1.04 or 1.05. That's the difference between the write commands sent to the SSD and the writes executed by

the SSD internally. The general assumption is a WAF of around 3.0 for normal consumer use with SSDs that

don't employ compression tricks. That translates to a lifespan of 75 years. Even when you push an SSD to

the max by downloading lots of movies everyday up to an average of 30 GiB per day, the SSD will still last

you 24 years. Nomatter how you use it, it will last longer than the period you plan on using it (most people

like to add more capacity after a certain time). A functional lifespan of 10 years is already unusually high

for a storage medium.

[whatthe_fuzz]

 

Holy crap that would be some horrible SSDs methinks! :o

(Or have I been misinformed?)

 

 

 

i read that somewhere  :wacko:

 

ive read that they can began to degrade from 20TB to 130TB. i dont think anybody actually knows the specific number because i dont think its been truly observed. 

[alpenwasser]

i read that somewhere  :wacko:

ive read that they can began to degrade from 20TB to 130TB.

Hm, ah well. If you ever find the source again I'd definitely be interested in that. 20 TB does

seem awfully low, but as mentioned I'm not an expert.

i dont think anybody actually knows the specific number because i dont think its been truly observed.

Well, having read the above article it does seem to be a pretty solid experiment. So while it's

not a representative study of every drive available it at least provides some actual experimental

data as far as I can tell. I haven't been able to find a serious flaw in it at least.

[dlf]

Just checked my drive (SandiskSDSSDX-120G-G25, 120 GB) and Total Host reads - 4.77 TB, while Total Host Writes  - 4.33 TB

[OneGun]

My intel is still at 100% with 10.9TB write and 43.13TB read..

[dalekphalm]

+1 to @alpenwasser you hit the nail on the head.

 

Most SSD's (last few gens at least) can sustain several hundred TB of reads with no issues at all. A cheap SSD from 5 years ago might wear down after 20TB of reads/writes, but not any current or even halfway new ones.

 

@Kilobytez95 Given the fact that your power on hours equal about ~229 days, having only 6TB of reads is pretty reasonable. That's NORMAL. Don't worry Your SSD will probably outlast your entire PC.

[alpenwasser]

+1 to @alpenwasser you hit the nail on the head.

 

Most SSD's (last few gens at least) can sustain several hundred TB of reads with no issues at all. A cheap SSD from 5 years ago might wear down after 20TB of reads/writes, but not any current or even halfway new ones.

The lowest rated modern drive I've been able to find is the Crucial M500, rated for 72 TB of

writes

by Crucial themselves, which seems to be pretty low. However, considering that the

Samsung drives in that torture test lasted about 3x as long as they were rated for (mentioned

somewhere in the article I linked) it will still be fine I think. But that is by far the lowest

rating I've seen so far (it still equals 40 GB of writes per day for five years, which is absolutely

adequate for most people IMHO).

 

@Kilobytez95 Given the fact that your power on hours equal about ~229 days, having only 6TB of reads is pretty reasonable. That's NORMAL. Don't worry Your SSD will probably outlast your entire PC.

+1

[Whaler_99]

Just an FYI - for anyone wanting a LOT more info on SSD's - check over at Anandtech. Anand himself has done a LOT of write ups and explantion on SSDs, a lot of testing, etc....

 

Essentially, a modern SSD in a high end user scenerio should last at least 7 years before you even have to start worrying... And even then, the way SSD's work for the most part, when it detects some corruption, it will copy the data out, and make the location as bad, so it is not used again. So, once it starts to degrade, you can still use it for some time...