The drive was behaving erratic and read speeds were jumping all over the place. But just a couple of days ago, faulty sectors turned up. I am using Linux and occasionally I read out the entire SSD using `ddrescue` to see it still works. but if Samsung has started using cheap stuff on purpose, then I have to re-evaluate my opinion of them, because I nearly exclusively use their SSD's in my systems, because I have developed the view that they are a company that makes quality products. If a factory simply used substandard silicon or a chip was improperly stored or something, ok. I just finished wiping the drive and plan on sending it back to Samsung, but I would like to know the general cause of this issue.
Just to put things in perspective, the drive's power-on Hours are 5872, the power on Count is 364, and the wear leveling count is 4. My drive showed that I had an Uncorrectable Error Count of over 2800, and and ECC Error Count of the same amount. Crystal Disk Info did not detect any problems with the drive, but Samsung's Magician did, when it looked at the S.M.A.R.T. After some investigating, I determined that I had lost about 28GB of media. I had been using it for more long term storage, so I didn't notice anything wrong with its performance until I opened the drive's properties from File Explorer, and it showed the drive as being a 500GB drive, which I knew was wrong. I had a similar error happen recently to my Samsung SATA 870 EVO 1tb SSD.
Surely I hope this is only a regional issue, but nobody really knows the answer. So to ensure you are not affected, I suggest checking your Samsung drive's SMART ASAP. While it is possible that the issue somehow occurs only in certain batches of SSD manufactured and/or sold in China, this problem could also exist globally, but remain undiscovered in regions outside China as it's rather covert. I tried searching in English, but it seems that nobody fell victim to this issue recently. Some claims that the issue is due to malfunctioning 3DV6 NAND, which corresponds to the current list of faulty SKUs mentioned above, and adds 870 EVO into the list.
#Check ssd health linux pro
Most of the faulty drives are 980 PRO and newer version of 970 EVO PLUS with Elpis controller, as well as the OEM variants, PM9A1 and PM981A however, some also find their 970 EVO encountering the same issue. (Some SMART monitoring software, including popular CrystalDiskInfo, display this entry as 64 because they display figures in hexadecimal instead of decimal, but this can be changed in the software's settings) They also find entry 03 (available spare) to be less than 100%. When they try to back up their data, they find some files cannot be read correctly. People scan their Samsung SSD, then suddenly entry 0E (media and data integrity error) in the drive's SMART, which may or may not be 0 before, begin to increase in an ungodly rate. This issue was discovered earlier this year, but it suddenly went virus in August in Chinese communities. If any red block appears, your drive is likely to be faulty backup the entire drive and seek warranty immediately. If 0E is not zero and/or 03 is not 100 (64 in CrystalDiskInfo), use Samsung Magician to scan your drive. TL DR: If you have a Samsung SSD, check your drive's SMART info. This is a rather messy post as the issue is not clearly identified even til now.
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