I am having an OCD dilemma, bought a WD40EZRZ-00GXCB0 with serial WCC7K2HR9Fxx (2 last serial digits not included because of warranty) made on 27 FEB 2020
It’s new and I still don’t want to open it, because if there is a chance it’s SMR I can sell it if it’s new and I don’t want it.
So this SHOULD be CMR since its “EZRZ” and everybody knows that “EZRZ” are CMR and “EZAZ” are SMR in this instance:
But…what makes me suspicions are the following internet threads, there is a reddit post, where somebody claims the difference between two models of WD Blue which are “EZRZ”:
WD40EZRZ-00WN9B0 - Giant (C4E in serial number) - 8 heads, PMR
WD40EZRZ-00GXCB0 - APOLLO (С7K in serial number) 6 heads, SMR.
Of course this just might be a mistake, I tracked the original post and it came from Russian forum, so I was searching further and found this website too:
With the claim:
WD40EZRZ-00GXCB0 – APOLLO (С7K in serial number) 6 heads, SMR.
BUT on their list here, it is not present as SMR.
I have checked the HDD with serial on WD site and this is indeed Apollo with 64MB of cache and with 6 heads as mentioned on various internet threads, can we say that this is a CMR 100% if it has 64MB of cache and is there a chance that it might be SMR because of the above threads I have posted?
Anyway, I would appreciate if somebody has the same HDD or want to make a philosophical debate out of this case or somebody with extreme knowledge who can shed some light on this dark and tough issue