Accurate description of HDD health and performance?

NTFSD
1

Hi, All

I don’t know whether asking this question here is appropriate.

It is about hard disk drive S.M.A.R.T (Self-Monitoring, Analysis and Reporting Technology).
I can get the smart information(such as attribute value,attribute thresholds…)
I know that if no attribute value is less than or equal to their corresponding
attribute thresholds,then device reliability status is OK.

SMART attributes includes:Raw Read Error Rate,Spin Up Time,Reallocated Sectors Count,
Seek Error Rate,Spin Retry Count and so on.Some of the attributes reflect the
hard disk’s health and performance.I don’t know how to give an overall assessment.
[I want to display it in digital form,such as:100 means the best,and 1 means an impending degrading]

Is there a standard algorithm to describe the hard disk’s health and
performance?
Or I can design it myself(use the relevant attribute value and attribute
thresholds to do some arithmetic)?

Any help is appreciated.Thanks.

Best Regards
Zhou ChengJun

2

I believe Vista already has this functionality, read this post, it links
to SMART

http://blogs.msdn.com/oldnewthing/archive/2008/10/08/8969401.aspx

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Subject: [ntfsd] Accurate description of HDD health and performance?

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Hi, All

I don’t know whether asking this question here is appropriate.

It is about hard disk drive S.M.A.R.T (Self-Monitoring, Analysis and
Reporting Technology).
I can get the smart information(such as attribute value,attribute
thresholds…) I know that if no attribute value is less than or equal
to their corresponding attribute thresholds,then device reliability
status is OK.

SMART attributes includes:Raw Read Error Rate,Spin Up Time,Reallocated
Sectors Count,
Seek Error Rate,Spin Retry Count and so on.Some of the attributes
reflect the
hard disk’s health and performance.I don’t know how to give an overall
assessment.
[I want to display it in digital form,such as:100 means the best,and 1 means an impending degrading]

Is there a standard algorithm to describe the hard disk’s health and
performance?
Or I can design it myself(use the relevant attribute value and attribute

thresholds to do some arithmetic)?

Any help is appreciated.Thanks.

Best Regards
Zhou ChengJun

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