2019
https://www.linux.org.ru/forum/admin/14971548
https://www.phoronix.com/scan.php?page=article&item=ubuntu1910-ext4-zfs
    ! p2
2018
https://habr.com/ru/post/423453/
2017
https://www.reddit.com/r/zfs/comments/6duz3j/zfs_on_a_purely_ssd_setup/
2016
https://forum.proxmox.com/threads/zfs-with-ssds-am-i-asking-for-a-headache-in-the-near-future.25967/

arc, larc cache
https://www.zfsbuild.com/2010/04/15/explanation-of-arc-and-l2arc/
    https://netpoint-dc.com/blog/zfs-caching-arc-l2arc-linux/