This HDD is making me crazy :doh:
It is a Western Digital 1 TB RE4 drive. The WD test tool was giving errors when running the quick test.
I cloned the disc to recover data using Acronis True Image, and all data was retrieved except for 2 sectors that was unreadable (according to Acronis).
After cloning the disc, I removed it from the computer and installed in an external box (sata to USB adapter). In the external box the quick test was giving errors again, so I ran the full test to check if the two unreadable sectors found by Acronis was really damaged.
The full test was completed without errors
Today I installed the disc internally and again the quick test failed :doh:
So I decided to use the "write zeroes" in the WD tool to format the disc, and now the quick test is completed without errors. The full test is ongoing now (I'll report results when completed).
These results are quite confusing to me... Should I assume that disc is damaged or not??? :doh:
As a side note, just for curiosity if someone is interested, when the full test is run from the external box (i.e. via USB2) it requires about 7-8 hours but when the disc is installed directly on the sata port the test is completed in about 2.5 hours :eek: I wish that my mainboard has an eSATA port :doh: