Hard disk health and reliability analysis

Almost every EIDE or SATA hard disk includes S.M.A.R.T. data. That information is collected by the drive itself and contains data that the manufacturer considered relevant to check reliability. The data is made up of several attributes that have a current value, a worst one, a threshold, some raw data, and some flags. Basically, when any attribute's current value is below its threshold, the hard disk is considered unreliable and likely to fail. By using several techniques, this report tries to give a wider range of information, basing its analysis on advanced comparisons with normal values based on real hard disks and on expert-like checks. The final results are not to be taken as an absolute truth, but they are almost as good as a professional expert advice about your hard disk status.

Your hard disk is a ST31000340AS with firmware SD25.
The average temperature for this hard disk model is 36°C (min=25°C max=48°C) and yours is 28°C.

  Attribute   Current   Raw
Raw Read Error Rate 116 000006ED34A9
Spin Up Time 91 000000000000
Start/Stop Count 100 0000000000ED
Reallocated Sector Count 100 000000000001
Seek Error Rate 55 007D02D93913
Power On Hours Count 98 00000000099A
Spin Retry Count 100 000000000003
Power Cycle Count 100 0000000000DB
End To End Error Count 100 000000000000
Reported Uncorrectable Errors 100 000000000000
Command Time Out 100 000000000000
High Fly Writes 1 000000000094
Hardware ECC Recovered 53 000006ED34A9
Current Pending Sector 100 000000000000
Offline Uncorrectable Sector Count 100 000000000000
Ultra DMA CRC Error Rate 200 000000000000

All the attributes of your hard disk are above the S.M.A.R.T. thresholds set by the manufacturer. This is good.

SERIOUS ISSUE : your hard disk High Fly Writes attribute current value (1) is below the normal range (96 - 100) reported for your specific hard disk model. The hard disk monitors the distance between the head and the plates. When it deviates from specifications, a possibly bad write could happen. The hard disk logic updates this attribute counter and applies some counter-measures (tries to rewrite, reallocates the sector...). High temperatures and vibrations can influence this attribute.

The overall fitness for this drive is 92%.
The overall performance for this drive is 92%.

The link to get back and see a new report about this hard disk in the future is this. Consider that new hard disks and new checks are added over time.


DISCLAIMER: this report does its best to highlight issues and warnings related to your hard disk. It cannot be held responsible for any mistake. This page and its results cannot be used in any other way but the one defined by its author.