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 ST9500423AS with firmware 0001SDM5.
The average temperature for this hard disk model is 41°C (min=27°C max=53°C) and yours is 37°C.

  Attribute   Current   Raw
Raw Read Error Rate 119 00000D87E2D0
Spin Up Time 98 000000000000
Start/Stop Count 100 0000000000F2
Reallocated Sector Count 100 000000000000
Seek Error Rate 69 00000076CE6A
Power On Hours Count 100 00000000013E
Spin Retry Count 100 000000000000
Power Cycle Count 100 000000000079
End To End Error Count 100 000000000000
Reported Uncorrectable Errors 1 0000000000A9
Command Time Out 100 000000110013
High Fly Writes 100 000000000000
GSense Error Rate 100 000000000008
Power Off Retract Count 100 000000000031
Load Cycle Count 98 0000000012DC
Hardware ECC Recovered 119 00000D87E2D0
Current Pending Sector 99 000000000020
Offline Uncorrectable Sector Count 99 000000000020
Ultra DMA CRC Error Rate 200 000000000000
Write head 100 2AD900000124
Total LBAs Written 100 0000905B44B1
Total LBAs Read 100 000099CF091C
Free fall protection 100 000000000000

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

BLOCKING ISSUE : your hard disk has 32 pending sectors. Those are sectors that couldn't be properly read and that the hard disk logic is waiting for a write operation to try to remap to a spare sector (if available). According to the Reallocated Sector Count attribute, your hard disk seems to have available spare sectors. A simple disk surface scan won't be enough to force the remap operation. You need a read/write surface scan to remap the sector. The best option should be a tool that knows about what should be read from that sector so that it has some option to apply the best fix to the missing data.

BLOCKING ISSUE : your hard disk has 32 offline uncorrectable sectors. Those are sectors that an offline scanning found as unreadable. Offline scanning is a process that can be automatically started by the hard disk logic when a long enough idle period is detected or that can be forced by some tool. Those unreadable sectors are identified and the hard disk logic is waiting for a write command that will overwrite them to try to remap them to spare sectors (if available). According to the Reallocated Sector Count attribute, your hard disk seems to have available spare sectors. A simple disk surface scan won't be enough to force the remap operation. You need a read/write surface scan to remap the sector. The best option should be a tool that knows about what should be read from that sector so that it has some option to apply the best fix to the missing data.

The overall fitness for this drive is 0%.
The overall performance for this drive is 93%.

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.