Still having problems with big arrays

I have a OMV setup with 2 raid 6 and 12+5 drives.
Drives are time to time kicked off from the array and it runs degrated. It seems OMV is sensitive to timeouts as expulsion from the raid appear to be related to entering the SMART page of OMV web page and SLEEP/AWAKE occurrence of the drives is active. Their position change in the bays seems related too. Also, after the setup has grown I am no more able to access the SMART page as I always have TIMEOUT errors.

I am considering moving to FreeNAS because I desperate and I could have more luck, but before this happen I kindly ask for help.

My SETUP is HP DL 380G7 with 96GB, IBM1015b flashed to IT MODE, HD SAS EXPANSION. Everything runs on a virtual machine of an ESX server but I have always had this problem even when the sutup was on bare metal.

omv-realease-upgrade give me an error: command not found.

From root, OMV 3.x

Now that installation in gone, I am on 4.x and I am facing another problem with spare drives not removable (thread is in a wrong section: general, and I have asked to move to RAID section).

https://forum.openmediavault.o…filesystem-does-not-work/