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Re: SSD failure modes
To: CRTech <crtech@crtech.org>
Subject: Re: SSD failure modes
From: Dan Harder <dan@am91.org>
Date: Mon, 18 Dec 2017 09:41:58 -0700
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My first installation of SSD is still running in XP. 5(?) years ago? Still fast, but filling up the 120GB…

On Dec 18, 2017, at 9:39 AM, Gullikson, Brian F <bfgullikson@unwsp.edu> wrote:

Knowing Willie's propensity to still be using Windows XP, I would be concerned that the XP OS does not have any built-in functionality for the TRIM command set for SSD's.
TRIM helps to keep the NAND memory inside SSD's from wearing out prematurely.
As I recall, using modern SSD's with XP or older OS's requires you to somehow manually execute TRIM commands on the SSD from time to time to prevent premature failure… however, I wouldn't expect this type of failure to be abrupt, and total.  I would simply expect the worn out bits of NAND to stop being able to be written to.
So… no real solution here… just some comments from my brain…  I've not used a SSD with anything older than Windows 7, and have thusfar had amazing results over many years of constant use.
Brian Gullikson, CBRE               98.5 KTIS-FM | Faith 900 KTIS
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KTIS, KDNW, KDNI                                       St. Paul, MN  55113
bfgullikson@unwsp.edu                        Phone:  (651) 631-5094
From: Willie Barnett [mailto:wbradiolists@gmail.com] 
Sent: Monday, December 18, 2017 9:52 AM
To: CRTech <crtech@crtech.org>
Subject: [CRTech] SSD failure modes

To the Braintrust:

I've now seen another "sudden, total, and without warning" failure of a new SSD. (Both in computers I have at home.)

When I say "No warning", I mean it was running one moment, then the next, BSOD! In both cases, the drive utterly "disappeared", and no attempt to access it works... USB external adapter, move to another machine, etc. It is utterly and completely DEAD!

How many others have seen this kind of dramatic and sudden death? Both drives in this scenario were 60 Gig, and were less than 30% full.

One of the drives, I took apart to see if perhaps a cap had exploded, or there was any sign of heat stress, etc... but no, it looked absolutely pristine.
Thankfully, I have backups! This kind of failure just bumps-up the urgency of making backups more often!


References: SSD failure modes
(Willie Barnett <wbradiolists@gmail.com>, 18 Dec 2017 15:51:39 -0000)
RE: SSD failure modes
("Gullikson, Brian F" <bfgullikson@unwsp.edu>, 18 Dec 2017 16:39:34 -0000)
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