Western Digital Error Code
Re-Test Drive 105 BUSY GLITCH The drive did not properly respond to test commands. Re-Test Drive 556 SERVO 1 SERVO is data on track location. Self-Monitoring, Analysis, and Reporting Technology (SMART). Ten or more instances of information on data positioning and location could not be found. have a peek here
Check cabling and retest. Re-test Drive 141 UNKNOWN ERROR An unknown error has occurred during testing. Check connections and retest. ECC is a hardware correction technique that corrects errors. https://support.wdc.com/knowledgebase/answer.aspx?ID=11711
Wd 08-unable To Repair Bad Sectors
Drive should be replaced. You may need to rescan to ensure that the repairs were effective. Replace the drive if the repair fails. Replace the drive if the error repeats.
Re-test and Repair Option diagnostic utility 212 10+ Uncorr ECC Errors Error Correction Code (ECC) 10+. Replace drive if unable to correct error 118 DAM Error Data Address Mark (DAM) Error. If the error repeats, replace the drive. Western Digital Quick Drive Test Failed Last year there was some concern about a few stubborn bad sectors that couldn't be reallocated.