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. 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.
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. Am I reading this incorrectly? The raw values show a difference though.
Primary Data Drive
Answer:ISTM that the OP is having difficulty understanding the normalised values of each attribute (Current / Worst / Threshold). These are health scores. These particular attributes begin life with a health score of 100%. When the drive begins to develop bad sectors, the health score declines. When this score drops below the threshold, the drive is considered to have failed.
If we take drive F: as an example, we see that it has developed 1716 (= 0x6B4) reallocated sectors. Its health is now at 59. This means that it has lost 41 points (= 100 – 59). So that means that the drive loses 1 point for every 41 sectors (= 1716 / 41 ).
Drive D: has recorded 16 (= 0x10) reallocated sectors. This is less than 41, so its health score remains at 100.