TerraMaster Forum

Hi there, I have a F6-424 Max with about 72TB of HDD storage. I have a Nvme RAID cache drive in there, and recently (about once every 2 weeks) I'm finding the unit beeping. When I logged in to TOS and take a look, it all looks fine but when I dig deeper I find that the Nvme Cache is showing as a degraded RAID device. This fixes itself with a power down/power up, but I'm not sure why this is happening, what to do to avoid it, etc. as being forced to shutdown every 2 weeks is less than optimal.

Is it a hardware issue with the Nvme I have in there? If so, is there a recommended brand/size/model that I should be using for this that others have had great stability results with?

Thanks in advance for any assistance.
K

You can refer to the compatibility list on our official website: https://www.terra-master.com/global/com ... ity/#tab-1 to choose a compatible NVMe hard drive.
Is the downgrade caused by the hard drive dropping offline? Can the hard drive be recognized normally in the NAS?

May I ask what NVMe M.2 SSD model you are currently using?
Perhaps you could consider generating and download the system report package in TOS Desktop > Technical Support > Report Issues before shutting down after the issue occurs, and send it to our support email for inspection.
(Shutting down NAS will lose the record of the system's operation since the last boot.)