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How can one tell for sure if a given WD Red drive is affected by this issue? I have some WD Red drives that are a couple years old, in my NAS.
by Bud 6y ago
How can one tell for sure if a given WD Red drive is affected by this issue? I have some WD Red drives that are a couple years old, in my NAS.
- e40 6y agoAnything less than 8TB is SMR, that's what I read in various places. All of my 3TB ones where. 2 failed in a RAID 6 in the same week.
- milofeynman 6y agoNot accurate. Some older reds are CMR. See the comment above. It depends on what model and how long ago you bought them.
- siera 6y agoWD has published a list of SMR drives : https://blog.westerndigital.com/wp-content/uploads/2020/04/2020_04_22_WD_SMR_SKUs_1Slide.pdf https://blog.westerndigital.com/wp-content/uploads/2020/04/2...
- berkut 6y agoThey have different model numbers. i.e. the original 4 TB CMR drives were: WD40EFRX the new 4 TB SMR drives are: WD40EFAX They also have larger caches in most cases (i.e. 256 MB vs 64 MB).
- at_a_remove 6y agoI checked and lucked out, I had WD4000FYYZs. Thank you!