Crucial Power Loss Protection

SOLVED
Kilobyte Kid

Crucial Power Loss Protection

Some SSDs (eg MX200) are marketed with the feature "power loss protection",

 

Is this just some capacitors providing power for some microseconds or is it more? And why was the power loss protection cut out of the BX100 specification?

 

Why is only "data at rest" protected? It seems to be quite counter intuitive not to protect data, which is being used (eg in cache or copied or something else) by a feature called "power loss protection",

----------------------------------------------------------------------------------
1 x Crucial m4 / 128GB
2 x Crucial MX100 / 512 GB (MU02)
on Windows7x64-SP1 and Fedora 21

greetz Jeffrey
3 Replies
JEDEC Jedi

Re: Crucial Power Loss Protection

It's capacitors.

 

I think it's mostly to prevent this scenario which affects older SSD's (of all brands): http://forum.crucial.com/t5/Crucial-SSDs/Why-did-my-SSD-quot-disappear-quot-from-my-system/ta-p/6521...

 

The BX100 is a budget drive.  I ahve to admit, i'm unaware of whether it has this feature or not.  But I wouldn't be surprised if some of the features of the higher end drives are cut from it's design.

 

 

Your M4 doesn't have this feature either, but your MX100 does.

_______________________________________
How do I know what memory to buy?
Shop for your region: US | UK | EU | France |
I think my memory is bad. What do I do now?
FAQs and Top Forum Solutions
Did a user help you? Say thanks by giving Kudos!
Still need help? Contact Customer Service
Want to be a Super User?
JEDEC Jedi

Re: Crucial Power Loss Protection

Hi Jeffr3y,

 

I think that your questions could be answered by Crucial staff but you may want to look at few articles (provided you haven't done that yet Smiley Happy )

http://www.anandtech.com/show/8528/micron-m600-128gb-256gb-1tb-ssd-review-nda-placeholder - take a look at 'Power-Loss Protection' section

And maybe this one - http://lkcl.net/reports/ssd_analysis.html - keep in mind that M4 doesn't have power loss protection

Also, according to some reviewers in touch with Crucial, as for the on-the-fly user data there is only ever around 2-4MB in the volatile cache.

______________________________________
How do I know what memory to buy?
Shop for your region: US | UK | EU | France |
I think my memory is bad. What do I do now?
FAQs and Top Forum Solutions
Did a user help you? Say thanks by giving Kudos!
Still need help? Contact Customer Service
Want to be a Super User?
Kilobyte Kid

Re: Crucial Power Loss Protection

Okay, now i have a better understanding of this product feature. Thanks targetbsp and bogdan!

----------------------------------------------------------------------------------
1 x Crucial m4 / 128GB
2 x Crucial MX100 / 512 GB (MU02)
on Windows7x64-SP1 and Fedora 21

greetz Jeffrey