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This new 40TB hard drive from Seagate is just the beginning—50TB is coming fast!
(www.techradar.com)
this post was submitted on 02 Jun 2025
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They're also ignoring how many times this conversation has been had...
We never stopped raid at any other increase in drive density, there's no reason to pick this as the time to stop.
Raid 5 is becoming less viable due to the increasing rebuild times, necessitating raid 1 instead. But new drives have better iops too so maybe not as severe as predicted.
Yeah I would not touch RAID 5 in this day and age, it's just not safe enough and there's not much of an upside to it when SSDs of large capacity exist. RAID 1 mirror is fast enough with SSDs now, or you could go RAID 10 to amplify speed.
tbf all the big storage clusters use either mirroring or erasure coding these days. For bulk storage, 4+2 or 8+2 erasure coding is pretty fast, but for databases you should always use mirroring to speed up small writes. but yeah for home use, just use LVM or zfs mirrors.