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If you were to suddenly come into possession of 12+ enterprise-grade SAS hard drives, how would you go about incorporating them into your homelab? (midwest.social)

submitted 7 months ago by [email protected] to c/[email protected]

46 comments fedilink hide all child comments

Pretend your only other hardware is a repurposed HP Prodesk and your budget is bottom-barrel

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[–] [email protected] 47 points 7 months ago (11 children)

Sell them and buy low budget low power consumption disks that would fit my purpose.

Enterprise-grade usually has enterprise-grade power consumption. From the power saving alone you can buy nice stuff.

[–] [email protected] 7 points 7 months ago* (last edited 7 months ago) (6 children)

This is a great observation, and it made me do some math:

If my point of comparison is something like a seagate ironwolf 4T vs a WD Ultrastar 4T:

Seagate Ironwolf: 
- 3.7W*24 Hours/day*365 days/year = 32kWh per year * $0.18/kWh = $5.84 per year in power usage * 12 disks in an array = $70.02 per year

*Edit: Looking at this closer, a more reasonable comparison would be an ironwolf PRO disk, since this is a NAS use-case (24-7 run time, large and repeated writes and reads, ect). The power consumption for that is 5.5W, which is a lot closer to the Ultrastar*

WD Ultrastar:
- 7W*24 Hours/day*365 days/year = 61kWh per year * $0.18/kWh = $11.05 per year in power usage * 12 disks in an array = $132.6 per year

Seems like i'd save maybe $70 per year. I feel like that difference might even be justifiable if the enterprise drives are half as likely to fail (seagate ironwolf has an AFR of 0.87%, WD Ultrastar is 0.44%).

Something to think about, at least

[–] [email protected] 14 points 7 months ago (3 children)

635 days is a fucking long year.

[–] [email protected] 5 points 7 months ago

Sometimes a day just FEELS like it's 48 hours long.

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