RAID 5 built but not showing as device in FS.

So, I'm rather new to RAID in OMV, past experience with OMV was a single drive set up. Now though, I'm trying to get a RAID5 set up using 4x WD Black NVMe drives. It's been a trial, at one point I had it set up but during a transfer something happened and 3 of the drives disappeared from the system (still detected in BIOS). After doing a clean re-install of OMV7 I wiped each drive using wipefs -a -f and started from scratch.

Now, I have OMV7 running, I have installed OMV Extras, from which I installed the openmediavault-md 7.0.2-1 plugin to build the array within the web interface. With it built, it shows in the command line in /dev/md0 but will not show up on the web interface to chose to install a File System for it (nor does it show as an existing file system), and without that I'm stuck.

So......any help on how to move forward and get this thing listed as a selectable device for a file system?

disregard.....after downloading TrueNAS iso and deleting/rebuilding the RAID5 array a second time it showed up as a selectable File System......I think the threat of swapping out to TrueNAS scared it into compliance.

......and disregard the disregard. 1/4 through transferring files via LAN the RAID failed again and all drives disappeared from OMV (still showing in BIOS). That's it, currently etching a USB install of TrueNAS. GLTA.

Although I seem to be talking with myself, thought I'd add this update in case someone out there is searching with the same issue.

Installed TrueNAS and set up a ZFS pool. Seemed solid, copied a bunch of things to it slowly, then finally tried transferring a 230 GB folder to the pool and it failed the same way the OMV Raid5 failed, so I'm back to OMV (I like it better than TrueNAS). Maybe the problem is transferring too large a block is causing the issue? Once this install is done I'm going to try transferring the files slowly to the RAID

Valid point. I've gone through the BIOS and can't find anything that should be set differently. I am running it off of a USB thumb drive (yes, I know, less than ideal) with flashmemory plugin (16GB ram, should fit in a ram disk). Wondering if the USB drive is the weak link, can't keep up and something corrupts.

Using an intel n100 board - CWWK X86 P5 wiht an M.2 NVMe NAS Board

Basically this set up here: https://www.youtube.com/watch?v=s8roJHzhNqg

Thinking that could be too.....ordered a bunch of heat sinks and thinking of jury rigging a fan to sit on top. Will report back if that helps.

Zitat von Krisbee

You need feedback from user of this board. Could thermal throttling be a problem? Are you sure there are no outstanding hardware problems, that cooling is adequate and all 4 nvme drives function correctly when used individually?

Tried heat sinks and slow copying of files to keep heat under control and still failed almost immediately. Been through the BIOS and asked others with similar hardware and to date have found nothing to help. Each drive was bought and matched brand new, so never been tested individually. Maybe I need to try running them as individual drives and see if they hold up.

Who new RAID5 set up would be this much of a PITA.

To follow up, I bought a new power supply for the board after testing the original PS and finding it to run about 12 vdc at 1.9 amps, not nearly enough. Since I bought the new PS things have seemed stable.....multiple 10+GB transfers without issues while playing back files simultaneously.

Still possible things could go sideways but right now, seems the PS was the problem. Hope that helps someone else out there.