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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 (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.

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Need advice on upgrading 16TB to ~50-60TB array (prices and options inside) (alien.top)

submitted 2 years ago by sofakng@alien.top to c/datahoarder@selfhosted.forum

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I need some advice on replacing my existing 16 TB array (10x2TB RAIDZ2). I don't think I need a ton of storage so I'm looking at about 3x the storage (~50-60TB) and here is what I'm considering (serverpartdeals.com):

Size	Model	Type	Price	Price/tb	No. Drives	Total Price	Usuable storage (RAIDZ2)	Total price/tb
16TB	HC530	recertified	$157	$9.8/tb	5	$785	48 TB	$16.3/tb
18TB	X18	refurbished	$161	$8.9/tb	5	$805	54 TB	$14.9/tb
18TB	X20	recertified	$179	$9.9/tb	5	$895	54 TB	$16.5/tb
~~14TB~~	~~HC530~~	~~refurbished~~	~~$128~~	~~$9.1/tb~~	~~6~~	~~$768~~	~~56 TB~~	~~$13.7/tb~~
14TB	HC530	recertified	$144	$10.2/tb	6	$864	56 TB	$15.4/tb
16TB	HC550	recertified	$157	$9.8/tb	6	$942	64 TB	$14.7/tb

* 14TB HC530 only has only available in-stock.

I'd like to continue using ZFS (RAIDZ2) and if I understand correctly, expandable RAIDZ(2) is coming soon so I'm assuming I can expand in the future if needed.

Can anybody give me any advice?

I've never used enterprise drives before and I've also never purchased refurbished or recertified but it's a lot cheaper than buying new and/or WD RED, etc.

I'm also unsure the differences between Exos and Ultrastar but I think X18 is older and so is HC530. All the drives listed have a 2-year warranty which I guess is sufficient.

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[–] OurManInHavana@alien.top 1 points 2 years ago

All your options are within +-$150 of each other: so I'd grab the largest-usable config. If it also happens to be the lowest $/TB... that's gravy. Pay those few extra dollars now and it may let the new setup run a couple extra years before it doesn't meet your needs anymore.

I don't stress over brand/model: parity configs take care of availability, and automated 321 backups take care of recoverability. Disks are consumables: any one of them could fail tomorrow: but you data should be immortal :)

If I'm buying new I'll look at $/TB/years-of-warranty, but for refurbs you're lucky to get a couple months so that doesn't really sway my decision.

Enjoy all your new space!