Hi Guys,

Like the topic says, I am getting Device is Disabled issues pretty much multiple times a week. I then fix the drive, the parity check happens and then a day or 2 later a drive is Disabled again. As you can imagine, this is SUPER frustrating especially since Unraid is AWESOME and I cannot get the most out of it with this happening. Just this morning I reboot my system after a parity check (which can take up to 27hours), everything was fine, all drives were reading fine. When I got home after work, one of the drives is disabled. My setup is as follows:

Lenovo M90s connected to 11 hdds via an LSI 9206-16e with MINI SAS HD SFF-8644 cables.
The HDDs are of various types.

The Power supply powering the HDDs is a 560w Fractal Design 80 Platinum. More than enough power.

I am going to be buying a proper server cabinet so that I can put my server in the garage (my office is simply too loud with the server in it). the M90s will sit on a shelf in the cabinet while I am still figuring out a way to mount all my HDDs and leave room for growth.

Do you think that the problem is my very janky setup or could it be bad drives? Would love some guidance on resolving my issues!

I have attached photos of my system and also my diags.

datavault972-diagnostics-20250730-2251.zip

I cannot tell from the picture but are you using a power splitter? If so be aware that a SATA->SATA connector cannot be split reliably more than 2 ways - you can get 4 way reliably with a Molex->SATA splitter

Also it looks like there is one long SATA power cable with multiple joiners coming out of the back of the PC down to the HDD cage, that is guaranteed to be worsening the issues due to massive voltage drop, even before all the daisy chained power splitters come in.

I had similar issues in one of my earlier DIY builds and it also turned out to be a power issue due to too much daisy chained power splitting, easy fix with some re-wiring to better branch out the splits from the PSU evenly and minimizing the length of cables.

On 7/30/2025 at 11:58 PM, Faceman said:

Also it looks like there is one long SATA power cable with multiple joiners coming out of the back of the PC down to the HDD cage, that is guaranteed to be worsening the issues due to massive voltage drop, even before all the daisy chained power splitters come in.

I had similar issues in one of my earlier DIY builds and it also turned out to be a power issue due to too much daisy chained power splitting, easy fix with some re-wiring to better branch out the splits from the PSU evenly and minimizing the length of cables.

SO I have 12 HDDs in my case. In the photo, i daisy chained 8 HDDs together on one 6 Pin SATA Power Port on my PSU. The other 4 have their own dedicated 6 Pin SATA Power Port.

As you suggested, I added another 6 pin port into the picture so every power port is only powering 4 HDDs. However, when doing this, it appears that the PSU stop delivering power to the HDDs and Unraid says that no HDDs are mounted. I confirmed that this only occurs when the PSU has 3 SATA ports in use but not when it has 2. However the SAME number of drives are being powered.

55 minutes ago, Tuntira said:

In the photo, i daisy chained 8 HDDs together on one 6 Pin SATA Power Port on my PSU.

If that is one PSU cable with 6 SATA connectors I would think you are OK as that PSU cable should easily be able to handle the current. I was talking about splitting an existing SATA connector on the PSU cable more than 2 ways potentially being an issue as such a SATA connector has limited current carrying capability. Is that clearer?

Hi There!
Back again dealing with the same issues. I continue to get random dropouts on my system. I am thinking buying a new PSU but I want to make sure that I have worked through all the other "free" solutions. I have attached the diagnostics as of typing this message. Any further help in testingthe system (PSU included) would be great. In the meantime I will check the system using unraid tools.

datavault972-diagnostics-20251004-1841.zip