Question for the TrueNAS experts - BLUF I am concerned about the resilvering speed of a replacement drive while in the middle of attempting to upgrade one of my vdevs (from 6tb drives to 18tb drive). I have a 12 bay Supermicro server that has 3x vdevs with 4x drives in each in a raiz1 (one spare pe…

I don’t know if this is your issue but SDJ is a Barracuda and that is probably a SMR type drive and may be causing issues. SMR vs CMR ServeTheHome [image] WD Red SMR vs CMR Tested Avoid Red SMR We tested WD Red SMR v CMR drives to see if there was indeed a significant impact with the ch…

Very slow resilvering speed

TrueNAS General

winnielinnie September 4, 2025, 12:15am 11

Don’t forget to enable “ghost compression” with zfs set compression=ghost.

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Very slow resilvering speed

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