The sign is an indicator that the drive is no longer safe for data storage.Īnd if you continue to use the drive for data storage, the data may get corrupt and the drive may turn inaccessible or even fail, which can lead to permanent data loss. That’s the reason why you see a warning sign in the SMART disk information. The reserved area is set aside by the disk for normal operation of the drive and to prevent immediate data loss due to bad sectors.Īs the reallocation sector count increases, the ability of disk to remap or reallocate data from bad sectors decreases. When a system can’t read, write, or verify data stored at a particular sector, it marks the sector bad and reallocates or remaps the stored data to a reserved area (spare area) on the hard drive.
A significant and consistent increase in the ‘ reallocated sector count’ attribute value is a clear sign of a dying hard drive, indicating imminent drive failure.Įssentially, the reallocated sector-also known as bad sector or bad block-is an area on the disk that is no longer safe to store data.
This is less than 41, so its health score remains at 100.Self-Monitoring Analysis and Reporting or SMART is a drive monitoring system embedded on hard drives, solid-state drives, and eMMC storage. So that means that the drive loses 1 point for every 41 sectors (= 1716 / 41 ).ĭrive D: has recorded 16 (= 0x10) reallocated sectors. This means that it has lost 41 points (= 100 – 59). If we take drive F: as an example, we see that it has developed 1716 (= 0圆B4) reallocated sectors. When this score drops below the threshold, the drive is considered to have failed. When the drive begins to develop bad sectors, the health score declines. These particular attributes begin life with a health score of 100%. Am I reading this incorrectly? The raw values show a difference though.Īnswer:ISTM that the OP is having difficulty understanding the normalised values of each attribute (Current / Worst / Threshold). Looking at the data from the program it looks like the Current and Worst for Reallocated Sectors Count, Current Pending Sector Count, and Uncorrectable Sector Count are the same from the Primary Data drive (D) to the Primary Backup drive (E) but D is flagged as Caution. My primary data drive and secondary backup drive are showing Caution, but I am having trouble understanding the results as the results appear to be the same between my primary data drive and my primary backup drive but one shows caution and the other shows good. Question: I recently felt my computer was running slow when accessing data on the hard drives and the data on the hard drives was getting slower to populate so I decided to run some health checks and ran CrystalDiskInfo to check my hard drives out.
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