I am quite new to OMV and also to ZFS on Linux. I have used a BSD based system for years which worked quite well in regards to ZFS (But has other issues). I installed a fresh OMV 4.13 Image, upgraded to the latest Kernel 4.17, installed the extras and could install ZFS plugin without any issues.
It appeared in the WEBGui and seems to work. Now after some days of testing I have 1 questions I already asked in another thread here but maybe that is the best place where all ZFS experts are.
This is the the Thread from last week: Degraded ZFS not notifications
So besides the email notifications (would be next step) I have the problem that after plugging off one disk (to simulate disk error) I still see a healthy pool.
I tested that several times and as long as I do no execute a scrub it will show that everything is fine. Of course a regular scrub is really important however for a xTB big pool I only do that every 4-5 days. (Which I think is also the recommendation)
What is your experience in case of an HDD error? I still have the BSD based system and here it immediately shows a degraded pool after removing one disk.
The kernel itself also shows that the disk have been removed (I posted the LOG in the other thread where you can see it after only a few secs)
I am still very much interested in Linux based NAS with all the advantages of ZFS however I am a bit confused about the behavior.
Thanks for your help
This is not something I have experienced, but give me some time today and I will see if I can reproduce.