Regarding WD vs Seagate vs HGST vs Toshiba, ...
My opinion is that there is no big difference between reliability of HDDs
from the major brands WD, Seagate, and HGST. (Actually HGST is now a part
of WD.) I am not talking about the "bleeding edge" models.
There are models (lines) in each manufacturer's portfolio that are
better, and those that have high failure rates.
Some people get burnt on one bad model, and swear off to never buy from
that manufacturer again.
That's about internal drives, and that also applies to the external ones.
IMHO, the biggest differences for the external HDDs is in the design of
the enclosures and HDD controllers that they use.
One of the internet hosting companies has been posting (every quarter?)
information about the failure rate of HDDs from different manufacturers.
Unless you have exactly the same model, - I wouldn't worry about that
statistics: the chances are that what those companies are using in the
servers would be different models from what you'd be getting inside an
external HDD.
One additional word of caution:
There are currently only 4 brands (Seagate, WD+HGST, Toshiba) of HDD
manufacturers. All other brands are using HDDs manufactured by any
of these 4. I've seen one, relatively new, brand (attributed to Japan)
that is selling internal HDDs branded with their brand. And those are
somewhat cheaper than the rest of the "pack".
From what I was able to figure out, - those are refurbished and rebranded
HDDs. Caveat Emptor!
Igor
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