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Not to start a flame war, but WD or Seagate for 20TB drives? (no shucking) (alien.top)

submitted 10 months ago by lmm7425@alien.top to c/homelab@selfhosted.forum

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I have a Synology that needs more storage. Thoughts on WD vs Seagate?

I've always bought WD Red, but with the recent WD controversies (including the SMR/CMR scandal and the recent WDDA warning), I'm considering Seagate. Also, I can't find any difference between the IronWolf Pro and Exos drives. What am I missing?

Metric	Seagate IronWolf Pro 20TB	Seagate Exos X20 20TB	WD Red Pro 20TB
Spindle speed (RPM)	7200	7200	7200
Internal transfer rate	285 MB/s	272 MB/s	268 MB/s
Gas	Helium	Helium	???
Cache	256MB	256MB	512MB
CMR?	Yes	Yes	Yes
MTBF (hours)	2.5m	2.5m	2.5m
Non-recoverable errors per bits read	1 in 10^15	1 in 10^15	1 in 10^15
Load unload cycles	600k	600k	600k
Workload rate (TB/yr)	550	550	550
Annualized Failure Rate (AFR)	0.35%	0.35%	???
Warranty	5yr	5yr	5yr
Price	$349.99	$329.99	$379.99

Also, please don't recommend shucking (those drives are in external enclosures because they didn't pass QC to become internal HDDs).

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[–] ixidorecu@alien.top 1 points 10 months ago

Can't help with these 3 specifically. I ordered som wd gokd drives. Which are the ones intended for datacenters. Price was lower. And I think it was 10^16 not 10^15. That may not sound like alot. But doing the math, number of bits on a raid6 of 8 14tb drives, basically going to hit 10^15. And they supposedly have firmware to handle vibration. Maybe worth looking into.

As for these 3, I would think they would all be fine choices.