datahoarder
Who are we?
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
We are one. We are legion. And we're trying really hard not to forget.
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The m1/m2 looks like poweredge r630 equivalent with v3/v4 cpu and m4 is using scalable Xeon which is one generation newer. All of them are great systems, especially when maxed out. The m4 being the newest is probably the best all around choice.
From power point of view, they’re gonna be “less” energy efficient than consumer diy stuff in that they’re supposed to be highly dense systems ran in a data centre with thousands of other similar servers, to pack as much punch in as little space as possible.
Another thing I’d be wary about is noise… 1U means you’re stuck with itty bitty tiny fans that need to spin very quickly and make a lot of noise, should your components heat up. Again, that whole data centre high density thing… noise isn’t something they’re optimizing for.