Are power outages killing your SSD's?
It seems that some testing has revealed a common failure mode for most SSD's on the market.
"... a report from the 11th Usenix Conference on File and Storage Technologies (FAST 13), given early this year, suggests most models have a fundamental problem with sudden power loss."
Cue the "but MY system has been running an SSD forever with no problems" replies.
Saint Louis, MO
I have always had UPS's on all of my computers so have not encountered any such difficulties.
In fact I have always considered a computer system without a UPS an accident waiting to happen.
But MY system has been running an SSD virtually forever with no problems.
In any case, last year I ran into SSD issues at work, and as a result, one manufacturer's SSDs were pulled out of the build, costing them quite a bit of money. And I didn't even tried to cut power, only did a reset while keeping the power on. (our product has a battery) Here are the SMART stats of one SSD: »Re: degradation of SSDs
I think there are 2 basic ways to make SSDs resistant to sudden power outages:
a) include some kind of temporary power source, be it a supercap or a battery
b) use journaling and temporary internal backups during writes
The issue with a) is cost, plus it requires some space, which may not be available in certain form factors such as mSATA
The issue with b) is that it could cut write performance in half
|reply to HarryH3 |
I like the comment fields in some areas.
You're going to get a bunch of "Been running SSD for 71 years, thousands of power outages, runs better than your new one everything ok".
"If something about the human body disgusts you, complain to the manufacturer" - Lenny Bruce
What this country needs is a good five dollar plasma weapon.
|reply to HarryH3 |
That's quite a scary revelation - even with supercaps it seems there are widespread problems.
I'm using a UPS and I'm using a journalling file system (ext4) but it still makes me wonder...
Although I could say "but MY system has been running an SSD forever with no problems" (this is true) it doesn't mean I'm immune to them or will never have them.