It could be an early warning sign, or it could go on for years without developing any more reallocated sectors. Should you continue to use it? Well, that very much depends on how important to you is the data you keep on it. When no longer in use it will be tested by the drive's internal controller and either reallocated or, if found to be good, removed from the 'pending' count. A pending sector is one that may need reallocating, but is in use at present. A count of more than 100 would be fairly conclusive evidence, particularly if the Reallocated Sector Count or the Current Pending Sector Count increase with time.
How long it will stay that way is difficult to say.Ī reallocated sector is a sign that the drive may be dying, but just one reallocated sector is not sufficient to condemn it.
Having replace a faulty sector, the drive should be full functional (for now). It means that when you review lots of occurances there is a consistant trend that most will fall at some point in a statistical curve of failure or survival.Ĭould still last for years and die of something else before the bad sector growth eats it alive.Īs was stated, the rate of the bad sector growth is more indicative of impending doom than just the fact that sectors have been remapped.Can you say if can use it. What is significant statistical probability? So if someone tells you that because you are hammering your hard drives it will lead to bad sectors, they are full of shit. There is no data which correlates disk usage to bad sectors at all. Relocation errors are not a sign of impending doom, but if you read through Googles statistics on hard drive failures you will see that when a drive throws relocation errors there is a significant statistical probability that the drive will fail sooner than one that is not exhibiting this behavior. These will show up as unsuccessful remaps.
If the sector is bad enough the data may not be salvageable on the remap. When a read/write/verification error occurs, a remapping of the sector is attempted. This could be isolated to a particular spot due to the manufacturing process and never progress further, or it could be an overall degredation of the medium over time that will lead to catastrrophic failure. Just put the drive in an anti-static bag and then in the bubble wrap.įor a bit of clarification on the SMART relocation errors.īad sectors are a failure of the medium.
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