Hi,
I am looking to buy a 4TB SATA hard drive. Use case is backup about once a week with and external dock, looking for files every now and then.
The general idea is that I would have two of them, and use the method of storing them with one pebble to indicate where to backup next, so I have one security copy always.
Speed is not important, durability is. What should I buy?
Thanks! It’s 3.5. Where does it say whether a disc is CMR/SMR/Helium?
Typically in the specs sheet of the manufacturer. You have to read/ look closely. Best is to ask about a specific drive ID then we can tell more (out of experience).
Thanks! So I’m finally going with the wd blue 6tb cmr:
https://www.westerndigital.com/products/internal-drives/wd-blue-desktop-sata-hdd?sku=WD5000AZLX
Is it helium?
Unlikely. There used to be 8TB heliums at some point, but then WD replaced that line with air-filled ones. A process that at least went to the 10TB line too already, I believe. Your safe bet for helium is 14TB and up, I would say.
When you buy that 6TB drive make sure to get the WD60EZAX (aka CMR) and not the WD60EZAZ (aka SMR). It’s one letter difference… if you buy from a random dealer they may send you the SMR.
I’m having trouble finding the blue where I live, so I think I’ll go with the Red Plus 8TB, WD80EFZZ…is it helium or air?
It’s a 20% chance, I guess. Dunno. :) If it has a flat top surface and no air holes then it’s Helium, else it’s air.
That’s a helium one: https://pcper.com/wp-content/uploads/2016/03/d177-dsc00234-1280x640.jpg
That’s an air one: https://cdn.eteknix.com/wp-content/uploads/2019/04/Western-Digital-WD-RED-8TB-Photo-view-angle-1-880x850.jpg