Hi,
I've been playing with OpenZFS on my high sierra mac all weekend and I have had nothing but problems with 1.7.2. I create the raidz1 no problem, ashift=12, everything is fine. I set my arc_max limit to 12GB via sysctl file in /etc/zfs (I have 64GB of RAM). I am using 4 2TB drives in a raidz1.
I am trying to copy 4.5 TB from a 6 TB HFS mirror to the raidz1. Everything is fine for the first 100GB of the copy (about 5 minutes), and then I start having general problems with my Mac.
Opening new terminals just hangs for a while. I start seeing beachballs sporadically. I noticed the kernel process went from 4GB to 19GB before the issues start. At this point the ZFS pool will have abysmal performance.
A reboot fixes it all, temporarily.
Is this a known memory leak issue?
Thanks