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Everything posted by Levent
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Does having multiple data vdevs with more redundant drives make any sense? How does pools with multiple data vdevs work? like jbod? fills the first vdev first then onto the next one?
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19 minutes ago, Levent said:
How does pools with multiple data vdevs work?
RAID-0 (striping), as far as I'm aware. Unless you add additional vdev(s) later, then it sorta balances between them based on how full each vdev is.
21 minutes ago, Levent said:Does having multiple data vdevs with more redundant drives make any sense?
You can gain some bandwidth, but I think for most "consumer" applications, there's not much to be gained over, say, two 4-wide RAIDZ-1s vs an 8-wide RAID-Z2...
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1 minute ago, AbydosOne said:
RAID-0 (striping), as far as I'm aware. Unless you add additional vdev(s) later, then it sorta balances between them based on how full each vdev is.
You can gain some bandwidth, but I think for most "consumer" applications, there's not much to be gained over, say, two 4-wide RAIDZ-1s vs an 8-wide RAID-Z2...
I am thinking in the sense of an JBODer. I got multiple capacity vdevs in the same pool. 1TB disks in RZ3 and 500G disks in RZ3. So lets say, my 500G disk vdev had 3 disk failure and are in need of a resilvering, does that mean my I can use other array to recover entirety of the data?
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Shout out to this guy. Great analogy.
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This is surprisingly the standard analogy (at least if I'm remembering all the astronomy stuff I watched as a kid right)
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