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Things you need to tell your kids
(sh.itjust.works)
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this post was submitted on 22 Nov 2024
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Who is still using raid? It's not 2006.
I have something resembling RAID5 in my NAS. 4 drives, 1 drive failure tolerance.
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raidz2 here. Still learning. What alternative should I look into?
Unless you want to go to large scale cluster storage systems, nothing.
Raid is the best way to get disk-level redundancy for a disk volume.
I'm mainly using RAID 6, but I'm still using a lot of SATA drives. I'll probably need to go with one of the software raids, like z2 when I move away from SATA.
Raid is no longer viable as a performance component, but it is completely viable for redundancy. Large scale cluster storage like Ceph is the way forward for anything larger than what can fit in a single chassis, or a single disk controller. Basically if you have or need more than one 45 drive chassis for storage, look into Ceph.
For everything less, RAID, and if you don't need redundancy and just want performance, just get a high end NVMe drive and do backups.
ZFS