Comments on: What SMART Stats Tell Us About Hard Drives

By: Sven Galee

Sven Galee — Wed, 09 Feb 2022 01:03:52 +0000

In reply to Skógr. My drive tool, Hard Disk Sentinel, says "Number of aborted operations due to HDD timeout. Value larger than zero may indicate power supply or data cable connectionb problems.". I would try re-plugging the SATA cable, and maybe swap it if you have a spare. I have 14 recorded on one drive, and that drive also has 3 x 187 Reported Uncorrectable Error, which seem to happen on wakeup.

By: Skógr

Skógr — Thu, 28 Oct 2021 00:53:22 +0000

Anything you can tell me on the Command Timeout value? My main HDD is a 1TB Seagate ST1000DM010-2EP102.
It’s still new, power on hours is 77 days, but the command timeout goes up sometimes by 1. It’s currently sitting at 5 (real value). Everything else is 0. I read that value should always be 0.

By: Morpheus

Morpheus — Tue, 07 Jul 2020 12:56:06 +0000

In reply to Mark. Never had a HDD with uncorrectable sector count, but had one HDD that had Current pending sector count. If i remember correctly, it was drive from Hitachi. Used WD tools to rewrite it with zeros and the SMART warning disappeared. Yet the drive wasn´t reliable - i had data loss on it twice. And over time, the same error reappeared again. Probably a defective product, but back then i was just a BFU.

By: Ashutosh Kumar

Ashutosh Kumar — Thu, 20 Feb 2020 05:57:48 +0000

I am trying to find a pattern for predicting using machine learning. I collected a quarter of data (Q3 2018) and was observing these 5 SMART metrics. But nowhere am able to see these SMART metrics breaching greater than zero in case of failures. Can you help guide which time period and manufacturer data is the above analysis based on ?

By: jraju

jraju — Wed, 07 Aug 2019 07:44:21 +0000

Hi surprised to read details on attributes on smart. Wonderful article.
But please say on if you offset the values with corresponding plus or minus, your errors become nil and no error shown. But this offset is only for your eyes seeing it has no errors but truly it is not.
How really know the status.
Is wmic command on status correct?
Or chkdsk /r .please

By: Kim

Kim — Tue, 09 Oct 2018 18:24:26 +0000

How come almost every drive-manufacturer state the “MTBF” (Mean Time Between Failures”: 1 million hours!? That’s 114 YEARS!

By: dan

dan — Fri, 08 Dec 2017 18:56:00 +0000

In reply to Andy Klein.

> The observation on Uncorrectable sector counts errors leading to failure
> withing 3 months is really interesting, I’ll take a look at the data to see if
> it is the same for us.

What did you find out after looking at the data?

By: Locane

Locane — Fri, 11 Aug 2017 20:21:00 +0000

Great Article. Are all of these drives spinners? Or do you have a mix of flash in there too?

By: Ard

Ard — Fri, 04 Aug 2017 22:54:00 +0000

Very Interesting. I am looking at the data. How can one tell if a smart attribute error occured from the CSV files? it seems like the values are recorded and there is no flag if an error happened.