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 ST3500410AS with firmware CC33.
The average temperature for this hard disk model is 33°C (min=24°C max=42°C) and yours is 28°C.

  Attribute   Current   Raw
Raw Read Error Rate 120 00000E01717D
Spin Up Time 97 000000000000
Start/Stop Count 100 000000000035
Reallocated Sector Count 5 000000000F3D
Seek Error Rate 78 00000410749F
Power On Hours Count 96 00000000103F
Spin Retry Count 100 000000000000
Power Cycle Count 100 000000000037
SATA Downshift Error Count 100 000000000000
End To End Error Count 100 000000000000
Reported Uncorrectable Errors 100 000000000000
Command Time Out 100 000D000E001C
High Fly Writes 97 000000000003
Hardware ECC Recovered 46 00000E01717D
Current Pending Sector 100 000000000000
Offline Uncorrectable Sector Count 100 000000000000
Ultra DMA CRC Error Rate 200 000000000000
Write head 100 7C7100001095
Total LBAs Written 100 0000C14B0A1A
Total LBAs Read 100 0000F47974A2

Troubled attributes:
Attribute Reallocated Sector Count is failing now! Its current value is 5, the worst value was 5 and the threshold is 36. According to the manufacturer, this is a pre-failure condition.

SERIOUS ISSUE : your hard disk has 3901 reallocated sectors. Hard disks do have spare sectors (usually from 256 up to 2560) used to replace bad ones. This remapping operation is transparent to the end user. Anyway, this can lead to degraded performances (because remapped sectors are in different places of the disk than the original ones and the head needs additional moving). If reallocated sectors grow over time, you might encounter some serious troubles. A backup of the most important data is suggested anyway.

The overall fitness for this drive is 0%.
The overall performance for this drive is 97%.

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.