This is because after the first reallocation error is detected, a drive is 40 times more likely to fail then one without any errors.Īlthough thse drives have not totally failed, they are considered to be failing, and therefore selling them as good working drives on eBay is not very honest. When I was a system administrator I used to keep a weekly log of these parameters, and when a disk appeared to have problems it was replaced with a new one. parameters are extremely valuable in predicting a hard disk failure. In all honesty you cannot say that the drive is good and working, when it is failing slowly, hence honesty is always good. This usually indicates that the drive has a problem and is failing slowly. Sometimes a drive fails slowly and one of the most typical parameters that become highlighted in red is the Here is a screenshot of a good drive I recently bought. parameters in a simple way so that almost anyone can understand.

parameters to prove it!ĬrystalDiskInfo is a program that displays all the S.M.A.R.T. This way, when you write that a drive is good, it really is good because you have the S.M.A.R.T. You can find out very quickly if a drive is good, failing, or has failed. If you are a large seller of recycled hard drives, then you should keep a test system where you can connect a drive and get its S.M.A.R.T. It keeps a list of all the errors that have occurred. Each drive keeps a record of the number of hours it has been used, and the number of errors it has had to correct. Good money for, then display the S.M.A.R.T. If you are an intelligent seller with a number of good working drives that you want to get Does simply spinning and making a noise mean it is good, because it is possible to get a drive that spins and formats, yet is totally useless.

How do you define a good working drive? A computer drive is a complicated piece of electronic engineering.

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