4tb WD Red no longer compatible with synology?

[Enquiries]

Hi. Thanks for your site and videos. I have recently moved my 4tb wd red HDD from ds412+ to rs1219+. A check today on the synology site shows 4tb red HDD are no longer listed as compatible. They were on the compatible list yesterday I’m sure! My question is which models/serial numbers were compatible? Has WD published when they changed from CMR to SMR on hdd so we can check what we have?

Regards

[ed]

Even though Synology do not list SMR drives as compatible they will still work with Synology. WD did a terrible thing by changing the existing CMR drives to SMR drives. Because mixing two technologies are not a recommended thing to do. The performance would suffer. But if you have all drives of the same kind then you should not worry much.It is more of a problem for those who need to replace an existing drive in a RAID. I hope this helps.https://nascompares.com/answer/how-to-tell-a-difference-between-dm-smr-and-non-smr-cmr-drives-hdd-compare/