Hard Disk Monitoring

I recently purchased a recertified 14tb hdd and i'm concerned about the spin-up time value decreasing. I wanted to get some insight if this is something to be concerned about or if its normal behavior. The drive was an enterprise wd with the smart data reset by the manufacturer in the recertification process.

The drive would be used as primarily cold storage. When first checking the drive it showed Spin-Up Time value of 99 (very first boot). But on subsequent checks (restarts) the value dropped. This continued to happen on each bootup until the value stabilized around ~80 to 82 range. I'm worried that the decrease is indicative of a failing drive. And that it will continue to drop in value.

Or could it just be stabilizing on the "true" spin up time value based on the age and prior usage of the drive (before the recertification).

From my limited understanding the recertification process only involves testing the drive by the manufacturer and then resetting the smart stats.

How important is the spin-up value and at what level should I really be concerned? Appreciate any help you can provide.

HD Sentinel shows that value as OK

Thanks for your message.

Yes, this is a good example why checking the VALUE field of a particular S.M.A.R.T. attribute is completely wrong idea and generally misleading.

In most cases exactly as you can see, this number changes quickly, you may see "drops" until it stabilizes in a lower value, like the 80-82 range what you wrote. This seems "too far" from the original 100/99 and this may cause false assumptions if we expect that it will decrease further with time.

This is why checking the Threshold / Value pairs and any calculations based on that (including Threshold Exceed Condition / T.E.C. date) is ALWAYS wrong and should be never done. Generally explained almost 20 years ago at www.hdsentinel.com/smart page, and as we can see, things did not change since that.

This is exactly why Hard Disk Sentinel relies much more on REAL error counters (the DATA field) and use that mainly to determine if there is any REAL problem with an attribute.

> HD Sentinel shows that value as OK

I think you see the answer already

But if you worry, then (as always)

- it is recommended to perform tests (even on a new, but especially on a used/refurbished hard disk) as explained at Support -> Frequently Asked Questions page -> Hard disk health is low or recently changed or I just installed a new (used) hard disk. How can I perform a deep analysis?
https://www.hdsentinel.com/faq.php#tests
to reveal any possible issues - or confirm that the drive is REALLY perfect

- it is good idea to use Report menu -> Send test report to developer option as then it is possible to check the COMPLETE status of the drive.
Focusing only on one single attribute is not good idea, especially without knowing the details. Drives (even different firmware versions) may use / calculate the numbers differently so it is important to see the whole status to properly understand and report the Health and problems (if any) about the drive.

hdsentinel wrote: ↑2023.07.27. 09:56 Thanks for your message.

Yes, this is a good example why checking the VALUE field of a particular S.M.A.R.T. attribute is completely wrong idea and generally misleading.

In most cases exactly as you can see, this number changes quickly, you may see "drops" until it stabilizes in a lower value, like the 80-82 range what you wrote. This seems "too far" from the original 100/99 and this may cause false assumptions if we expect that it will decrease further with time.

This is why checking the Threshold / Value pairs and any calculations based on that (including Threshold Exceed Condition / T.E.C. date) is ALWAYS wrong and should be never done. Generally explained almost 20 years ago at www.hdsentinel.com/smart page, and as we can see, things did not change since that.

This is exactly why Hard Disk Sentinel relies much more on REAL error counters (the DATA field) and use that mainly to determine if there is any REAL problem with an attribute.

> HD Sentinel shows that value as OK

I think you see the answer already

But if you worry, then (as always)

- it is recommended to perform tests (even on a new, but especially on a used/refurbished hard disk) as explained at Support -> Frequently Asked Questions page -> Hard disk health is low or recently changed or I just installed a new (used) hard disk. How can I perform a deep analysis?
https://www.hdsentinel.com/faq.php#tests
to reveal any possible issues - or confirm that the drive is REALLY perfect

- it is good idea to use Report menu -> Send test report to developer option as then it is possible to check the COMPLETE status of the drive.
Focusing only on one single attribute is not good idea, especially without knowing the details. Drives (even different firmware versions) may use / calculate the numbers differently so it is important to see the whole status to properly understand and report the Health and problems (if any) about the drive.

Thank you very much for taking the time to explain this to me

And thanks for creating such a wonderful software to check our HDDs

Hard Disk Monitoring

Spin-Up Time (Value)

Spin-Up Time (Value)

Re: Spin-Up Time (Value)

Re: Spin-Up Time (Value)