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When can we expect 500TB drives to be available?
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this post was submitted on 05 Oct 2024
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Absolutely not. At those densities, the write speed isn't high enough to trust to RAID 5 or 6, particularly on a new system with drives from the same manufacturing batch (which may fail around the same time). You'd be looking at a RAID 10 or even a variant with more than two drives per mirror. Regardless of RAID level, at least a couple should be reserved as hot spares as well.
EDIT: RAID 10 doesn't necessarily rebuild any faster than RAID 5/6, but the write speed is relevant because it determines the total time to rebuild. That determines the likelihood that another drive in the array fails (more likely during a rebuild due to added drive stress). with RAID 10, it's less likely the drive will be in the same span. Regardless, it's always worth restating that RAID is no substitute for your 3-2-1 backups.
Yeah I have 6 14tb drives in raid 10, I'll get 2 more if i need it.