Re: [Smartmontools-database] OWC Mercury Electra 3G

[<owc...@yo...>]

>From what I read at this URL on SandForce SMART fields,

http://code.google.com/p/hddguardian/wiki/SandForce_SMART_attributes

smartmontools is all wrong for SandForce controllers. The key field is
231.

"231    E7      SSD Life Left
A measure of the estimated life left, based on a combination of PE
cycles and available reserve blocks. 100 is a new drive, 10 = replace as
it has sufficient reserved blocks but the PE cycles have been used, 0 =
insufficient reserved blocks, drive is read only to allow recovery of
data on the drive."

My drive has yet to show any signs of failing under daily use. It boots
a full Linux OS (ext4 sans journal, no trim, no swap).

-----------------------------
Product Page
http://eshop.macsales.com/shop/internal_storage/SSD/Mercury_Electra_3G_Solid_State

Staff comments on 6G not 3G, but applicable to all OWC models.

http://blog.macsales.com/10682-other-world-computing-expands-built-in-usa-6gbs-solid-state-drive-line-with-new-mercury-electra-6g-ssd/comment-page-1#comment-40165

OWC Grant
June 17, 2011 at 10:27 am

On many levels, you could draw that comparison except for the exclusive
use of Tier 1/Grade A NAND flash in all OWC SSD models. Simply put, we
don’t use anything but the highest quality flash in all our Solid State
solutions and no other Solid State Drive manufacturer lists as complete
and detail specs as we do. And then…comparing the Extreme Pro 6G to the
OCZ….well…we’re the only drive with a 5 year warranty and we’re not
doing a recall of our drives unlike other brands currently are….

As one media source recent stated, and I’m paraphrasing here…. “OWC may
not be first with intros in the SSD realm…because they take their time
to make sure when they intro a product, it’s 100% solid”

http://blog.macsales.com/10682-other-world-computing-expands-built-in-usa-6gbs-solid-state-drive-line-with-new-mercury-electra-6g-ssd/comment-page-1#comment-40164

OWC Grant
June 17, 2011 at 10:18 am

Hi Matthew:

Yes, flash is a commodity, just like a rechargeable battery that had a
certain amount of charging cycles in it before it just doesn’t hold a
charge anymore. The cells have a limited lifetime, but we’re talking in
terms of years – not too dissimilar to the time that a standard, platter
based hard drive would suffer from a physical drive failure. It becomes
more of an issue for the manufacturer in design of the SSDs than it
becomes for an end user purchasing from a trusted source.

All OWC SSDs use only Tier 1/Grade A flash in our SSDs. Add that to the
Wear Leveling and Block Management properties of the SandForce
controllers and you’re assured to have a good long lifetime of use with
any SSD from the OWC family of drives. Our Extreme Pro 6G comes with a 5
year warranty…we fully expect them to well exceed that period of use.
Heck, our Extreme Pro 3G has a MTBF rating of 2,000,000 hours…which
under 24/7 use, the drive will last 228 years. I’d say that’s pretty
reliable and thus nothing to worry about. ;-)

More,
http://blog.macsales.com/9438-not-all-ssd%E2%80%99s-are-created-equal-the-story-continues

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