Guys I was looking into my NAS settings and I noticed that the last scrub with my ZFS pool is from 6 months ago D: Should I do a scrib now? Also: do you suggest to do a scrub every week? How can I do that?
It's not really necessary to run a ZFS scrub in OMV. When the plugin is installed, a scrub cron job is setup by default. You can find the job in. /etc/cron.d/zfsutils-linux
It's set to run every 2nd Sunday of every month. (Which I think is more than adequate.) As @raulfg3 has already stated, really, once a month is enough.