Hi, I have two 2TB WD20EARS hard drives installed in a home server. Last night I ran Chkdsk on them, and this was reported:
Disk 1: “170650768 KB in bad sectors.”
Disk 2: “414378904 KB in bad sectors.”
I pulled one of the drives, put it into another PC, installed Western Digital’s Data Lifeguard tools, and ran an extended scan on it. In the morning, it finished and said everything passed. In addition, if you examine the SMART data, everything has green checkmarks and there are no warnings. The Reallocated Sector Count SMART entry shows a value of 200 on both drives and raw data of zero, so I’m guessing that 200 is the default value (but I honestly don’t really know how to interpret SMART values). However, running Chkdsk again reports that high number of bad sectors.
Can anyone comment on what’s going on here? Why would Chkdsk say 400 GB of my 2 TB drive is bad, but Data Lifeguard says everything’s great and SMART indicates everything is great?
Please help, I’m a little bit freaking out right now. All my data is stored redundantly on these two drives, and I can’t tell if a problem actually exists or not.