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A comment on Seagate Announces 12 TB HDD: 2nd-Gen Helium-Filled HDD. Parent comment

Re:Seagate Announces 12 TB HDD: 2nd-Gen Helium-Filled HDD by Filligree on Thursday March 16, 2017 @10:32PM (#13890903)
That's basically why I've gone with raidz3, yeah. raid10 still allows a second drive failure to lose data, it's just less likely to be that specific paired drive.
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Re:Seagate Announces 12 TB HDD: 2nd-Gen Helium-Filled HDD by rb666 on Friday March 17, 2017 @01:25AM (#13891712)
Good article here: http://jrs-s.net/2015/02/06/zfs-you-should-use-mirror-vdevs-...
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Re:Seagate Announces 12 TB HDD: 2nd-Gen Helium-Filled HDD by Dylan16807 on Friday March 17, 2017 @03:00AM (#13892107)
> The only disk more heavily loaded than usual during a mirror vdev resilvering is the other disk in the vdev – which might sound bad, but remember that it’s only being heavily loaded with reads, whereas all of the remaining disks in a RAIDZ vdev are being much more heavily loaded with writes as well as reads during a resilver.

Why is that happening? There's no reason to perform a bunch of writes to those drives.

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Re:Seagate Announces 12 TB HDD: 2nd-Gen Helium-Filled HDD by fnj on Friday March 17, 2017 @01:10AM (#13891652)
RAID-Z3, or a mirror of two RAID-Z2s for me, I have one of each. You can also do mirrors with more than just two elements.
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