HomeĐời SốngFix reallocated sector count warning

Fix reallocated sector count warning

11:47, 05/04/2021
I ran this HD utility called CrystalDiskInfo that displays some of the S.M.A.R.T. information on my drives. It is displaying a "Caution" warning on one of my drives because its "Reallocated Sectors Count" value is 263 (ideally it should be 0 as it is on all of the other drives I have tested).

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I posted this question on another forum và the general consensus of the responders was to back up immediately và get rid of the drive. The drive is fairly new và only has 4575 hours on it. I just learned about this utility a few weeks ago, so I don"t know when the reallocation of these sectors may have occurred, but it hasn"t changed.

Can I trust this drive?


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edited Nov 10 "16 at 4:23
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bwDraco
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asked Aug 20 "09 at 23:30
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ravenraven
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In my experience it"s a toss-up. I"ve sầu had one drive that had some reallocated sectors & a nasty whine that ended up outlasting some drives that gave no warnings before dying a miserable death. I actually chucked it because it was so noisy, rather than data loss.

However, for me, personally, at the first sign of problems in a drive, I backup then swap it off. Drives are cheap, online backups are cheap & if you"re anything lượt thích me, your time is better spent elsewhere than trying to recover a drive sầu.

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edited Sep 27 "09 at 22:50
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hyperslug
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answered Aug 21 "09 at 2:12
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emgeeemgee
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Rather than just ditching the drive sầu, you might want lớn just keep an eye on it first, to see if the reallocated sector count increases. If that count continues to lớn increase, the drive sầu is finding and mapping out more và more bad sectors.

I guess it depends on what this drive sầu is doing - is it "mission-critical" or on a server? If so, I would be more nervous than if it"s in a home page PC not doing a whole lot (as long as you make regular backups of the data, which of course you should bởi vì anyways).

Edit: I just downloaded and ran CrystalDiskInfo on my harddrive here at work (an always-on PC, as we"re a 24-hour operation), và it"s logged 7739 power on hours & has 100 reallocated sectors.

For those who don"t know, reallocated sectors are:

Count of reallocated sectors. When the hard drive finds a read/write/verification error, it marks this sector as "reallocated" và transfers data khổng lồ a special reserved area (spare area). This process is also known as remapping, và "reallocated" sectors are called remaps. This is why, on modern hard disks, "bad blocks" cannot be found while testing the surface – all bad blocks are hidden in reallocated sectors. However, as the number of reallocated sectors increases, the read/write speed tends to lớn decrease. The raw value normally represents a count of the number of bad sectors that have been found & remapped. Thus, the higher the attribute value, the more sectors the drive sầu has had to lớn reallocate.