S.M.A.R.T. Spin Up Time Attribute (03) Question

[RD]

I have a Western Digital WD2000JB-00GVA0. The value for the Spin Up Time
attribute is 89. I have two additional WD2000JB drives and there attribute
values are 131 and 135. It appears the "threshold" value is 21. I'm guessing
the drive with the 89 is showing it's age--about 4 years old I'm guessing.
How can the spin up time value trending lower indicate a problem? Isn't it
more desirable for the spin up time to be as low as possible from a
performance standpoint??

RD

 

[Arno Wagner]

I have a Western Digital WD2000JB-00GVA0. The value for the Spin Up Time
attribute is 89. I have two additional WD2000JB drives and there attribute
values are 131 and 135. It appears the "threshold" value is 21. I'm guessing
the drive with the 89 is showing it's age--about 4 years old I'm guessing.
How can the spin up time value trending lower indicate a problem? Isn't it
more desirable for the spin up time to be as low as possible from a
performance standpoint??

SMART attributes are normalized to "higher is better", i.e. the
attribute is sort of the inverse of the time.

One possible problem is a PSU that puts out too weak voltages. The
other is higher bearing resistance to movement because of old
age. At some time the spin-up will then entirely fail or bearing
vibration will make operation unereliable or impossible.

Arno

 

[Folkert Rienstra]

I have a Western Digital WD2000JB-00GVA0. The value for the Spin Up Time
attribute is 89. I have two additional WD2000JB drives and there attribute
values are 131 and 135. It appears the "threshold" value is 21.

I'm guessing the drive with the 89 is showing it's age--about 4 years old I'm guessing.

Or that it's power supply sags during spinup.

How can the spin up time value trending lower indicate a problem?

Isn't it more desirable for the spin up time to be as low as possible from a
performance standpoint??

What performance, at spinup time? What performance, if the drive went to sleep?
Right. So now that you have answered that, your question is?

 

[RD]

SMART attributes are normalized to "higher is better", i.e. the
attribute is sort of the inverse of the time.

One possible problem is a PSU that puts out too weak voltages. The
other is higher bearing resistance to movement because of old
age. At some time the spin-up will then entirely fail or bearing
vibration will make operation unereliable or impossible.

Arno

Thanks for your response! I am researching the formulas that get applied to
the raw attribute data to further understand the "normalization". I would
think that if the PSU was the culprit, all of the drives would exhibit the
same spin up time issue. At any rate, your help is much appreciated.

RD

 

[Arno Wagner]

Thanks for your response! I am researching the formulas that get applied to
the raw attribute data to further understand the "normalization".

I fear they are the secret of the respective manufacturer.

I would think that if the PSU was the culprit, all of the drives
would exhibit the same spin up time issue. At any rate, your help is
much appreciated.

Only if they are identical. Still, the value does not look like
it is dangerous at the moment. Just keep an eye on it and if
it grows worse, replace the drive at, say, 50 or so.

Arno

 

[Folkert Rienstra]

Nice quoting. You one of those proofreaders?

I fear they are the secret of the respective manufacturer.

Babblebot, clueless as always.
3 drives, 3 different sets of values. Ever hear of a trend, babblebot?

Right, so what does that tell you. If you have no idea, here's a hint: where is
the power supplied to the drive, at the drive's end or at the powersupply end.

At any rate, your help is much appreciated.

That's very stupid, he is the babblebot.

Only if they are identical.
Still, the value does not look like it is dangerous at the moment.

Like you would know what it has to be to be 'dangerous'.

Just keep an eye on it and if it grows worse, replace the drive at, say, 50 or so.

With a max of 200, 89 is like "50 or so".

 

[RD]

Or that it's power supply sags during spinup.




What performance, at spinup time? What performance, if the drive went to
sleep?
Right. So now that you have answered that, your question is?

Folkert, you are a pompous ass.

RD

 

[Folkert Rienstra]

Folkert, you are a pompous ass.

Thanks for the compliment, I hear that alot from people with single digit IQs,
that cannot even master their own newsclient, so you are in good company.

 

[chrisv]

Folkert, you are a pompous ass.

*bzzzt*

Sorry, you have to phrase your response in the form of a question.