[Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

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ezplanet
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[Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by ezplanet »

I have just purchased another D5-300C, I have already 3 of these units, all work fine and drives can be addressed individually. Each drive reports as its own make/model and I can run smartctl on each of them.

This new unit unfortunately has drive 0 and 1 that report as TDAS and cannot be seen directly (drives in slot 2,3,4 report correctly and can be seen by smart).

The RAID arrow is on single as I use zpool as software raid. I have done a hardware reset several times, but nothing changes.

Why is this new D5-300C different from the others? Is there a way to access all 5 drives directly?
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crisisacting
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Re: [Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by crisisacting »

Check the serial numbers of all your units.

It's been previously mentioned that there are multiple revisions of the D5-300C which use different firmware & even some that cannot be updated, so Terra-Master is very careful with firmware updates around the blanket model number.

There might be a firmware update issued for your recently purchased unit, which might resolve the issue you currently have.
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CursaYang
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Re: [Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by CursaYang »

Hello, are you referring to devices in slots 1 and 2 as drivers 0 and 1?
Are the devices in these two slots configured as a RAID array?
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ezplanet
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Re: [Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by ezplanet »

The drives are configured as "single" --> on the back pointing to "single".
The drives show as TDAS, smartctl does not return any information for drives in slot 1 and 2, whilst works normally for drives in slots 3,4 and 5.
I have 2 other D5-300C purchased in 2023 that show all drives individually, udev creates individual links for each drive in /dev/disk/by-id.

With this new unit udev is unable to create the required device links because the firmware does not distinguish uniquely drives 1 and 2, therefore use with zfs becomes problematic as I cannot rely upon the changing drive names as /dev/sdX.
I need to point each drive individually and I need to get S.M.A.R.T. information for each drive too. I have been in touch with TerraMaster support, but they are of no help, we are in a loop getting asked obvious questions and they are making useless suggestions (like have you checked the arrow points to "single"? Doh! I am not stupid!), or use a USB hub in the middle (WTF! :-) ).
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ezplanet
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Re: [Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by ezplanet »

I wonder if asmedia mptool can configure the chips correctly, but how?
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crisisacting
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Re: [Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by crisisacting »

ezplanet wrote: 18 Jul 2025, 21:17 … or use a USB hub in the middle (WTF! :-) ).
The ASMedia solution in the TDAS may require/draw more power than the USB ports on the host device may be able to provide, that's why a powered hub is being suggested; it shouldn't really be in this case as the TDAS is interfacing with the host OS fine, just not the same way as your other units.
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ezplanet
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Re: [Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by ezplanet »

My motherboard has 10gbit USB ports that provide enough juice, also I have 3 of these units already operational since 2023. One of them is an even older unit purchased second hand, 2 were new in 2023. I have never experienced these issues with any of them. Also it would not make any sense to have a dedicated USB hub for each one. At this point I would change make/model.

The remaining issue is to make this new unit see all drives directly as with the other 3 D5-300C, terramaster support is of no help unfortunately. This unit is identical to the others inside and out, but the firmware must be different.
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TMjack
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Re: [Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by TMjack »

Hello, based on the phenomenon you described, it is preliminarily determined that there is a firmware (FW) discrepancy in the HDD1/2 control chips of the D5-300C product. Please download and use this dedicated tool to check the firmware versions of the HDD1/2 control chips in the three products you have on hand.
Additionally, could you please confirm: Before creating a RAID array with HDD1/HDD2, were you able to successfully read the relevant information of these two hard drives by running the smartctl command?
viewtopic.php?t=7111
To contact our team, please send email to following addresses, remember to replace (at) with @
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ezplanet
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Re: [Help] D5-300C disk 0 and 1 seen as TDAS, cannot smartctl

Post by ezplanet »

The units are attached to linux servers, and I do not use windows at all in my household. I have a macbook.
I have never configured raid, the switch is on single as I need a JBOD for zfs
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