We have a medium-sized writeup of what metadata special devices are and how we created and deployed ours. Discusses both hardware and ZFS configuration:
rsync.net Technical Notes - Q3 2021:
Happy to answer questions here although there is already a discussion at HN:
news.ycombinator.com
rsync.net Technical Notes - Q3 2021:
Happy to answer questions here although there is already a discussion at HN: