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 ST9320423AS with firmware 0002SDM1.
The average temperature for this hard disk model is 40°C (min=29°C max=50°C) and yours is 37°C.

  Attribute   Current   Raw
Raw Read Error Rate 112 000002D2F1CA
Spin Up Time 97 000000000000
Start/Stop Count 97 000000000DD7
Reallocated Sector Count 99 00000000001F
Seek Error Rate 80 000106BE5848
Power On Hours Count 87 000000002F13
Spin Retry Count 100 000000000000
Power Cycle Count 98 0000000008F5
End To End Error Count 100 000000000000
Reported Uncorrectable Errors 100 000000000000
Command Time Out 100 000000000003
High Fly Writes 100 000000000000
GSense Error Rate 100 000000000001
Power Off Retract Count 100 00000000001B
Load Cycle Count 1 000000034CC2
Hardware ECC Recovered 56 000002D2F1CA
Current Pending Sector 100 000000000000
Offline Uncorrectable Sector Count 100 000000000000
Ultra DMA CRC Error Rate 200 000000000000
Write head 100 182800001C4A
Total LBAs Written 100 00000B5908CE
Total LBAs Read 100 0000180F82AE
Free fall protection 100 000000000000

Troubled attributes:
Attribute Airflow Temperature failed in the past. Its current value is 63, the worst value was 39 and the threshold is 45. According to the manufacturer, this is an advisory condition.

SERIOUS ISSUE : your hard disk has 31 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.

NOTE : your hard disk Power On Hours Count attribute current value (87) is below the normal range (92 - 100) reported for your specific hard disk model. Basically your hard disk was powered on for more than the maximum time the average user did. This means that either all of the reports collected are from hard disks that were not powered on for too long (this is realistic for recent models) or that your hard disk is becoming old. Usually this is not considered as a pre-failure advisory, but you should check whether you want to replace the hardware or keep an eye on its performances over time.

NOTE : your hard disk Power Cycle Count attribute current value (98) is below the normal range (99 - 100) reported for your specific hard disk model. Basically your hard disk was power cycled more times than the maximum number the average hard disk was. Power cycles put some stress on the hard disk mechanic. Sometimes power cycles can be caused by a loose hard disk power connector. Make sure it is properly fastened.

The overall fitness for this drive is 85%.
The overall performance for this drive is 95%.

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.