On 04/14/2015 02:29 AM, Vladimir Mosgalin wrote:
> Hi ToddAndMargo!
>
>   On 2015.04.13 at 18:26:49 -0700, ToddAndMargo wrote next:
>
>> -T
>>
>> Wonder if there are any enterprise level SSD's that don't
>> need TRIM?
>
> Tons. All Hitachi SSDs, OCZ Interpid and Saber, all Intel DC series SSDs
> (based on Intel controllers) and many more. Though I'm not sure that
> 1) you'll like the prices of enteprise SSDs and 2) for workstation (and
> even for many kinds of servers) there is absolutely no point in using
> these "enterprise" SSDs. The controller itself isn't more reliable, just
> flash chips endure more wear, but the difference (e.g. 100 TB endurance
> of normal SSD vs 20 PB endurance of enterprise SSD) makes a difference
> only for certain databases and cache (when data on SSD is constantly
> refreshed) workloads. So if you exclude the wear factor, the chance of
> failure depends on the controller/firmware and is about the same whether
> SSD was marked for enterprise or not. And you already got RAID in mind
> against these kind of failures anyway.
>
> For nearly all other cases, avoiding SandForce-based SSDs is about all you
> need to care about when picking SSD for systems without TRIM. I listed
> some model examples in the previous mail.
>


Hi Vladimir,

I have look all over Intel's specs for their new SSD DC S3510
series SSDs (older drives are harder to find):

http://www.intel.com/content/www/us/en/solid-state-drives/ssd-dc-s3510-spec.html

They do not say a thing about Garbage Collection and not having to use 
TRIM.  They do say "Data set management Trim command", which means they
support TRIM.

I have eMailed Intel's tech support twice over two weeks and
have been ignored twice by them (which is typical).

Also: in my research, I did find mention that TRIM did not effect
lifespan -- TRIM only affected write speed, which would slow down
to a crawl without it.  Can you verify this?

Thank you for helping me with this.

-T


-- 
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Computers are like air conditioners.
They malfunction when you open windows
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