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Forum Discussion
funnybesbes
Jul 22, 2025Aspirant
ReadyNas 102 new hdd not detected
Hello, I just bought a new HDD ( ST2000NT001 - Seagate IronWolf 2 TB) but when I insert it in my readynas 102 it is not detected. I know that this disk is not in the HCL (hardware compatibility l...
- Jul 26, 2025
erf, I reflected a bit over what you said about the disk not getting enough power and I found the cause : I couldn't find the right alim for the nas so I picked something that was matching the connector => a block with 12V - 1A. I tried with another one, this time 12v - 3A and now the NAS can detect the disk (disk led is alight, disk is detected on the web UI).
I feel so dumb --'
Thanks for your help and time.
StephenB
Jul 23, 2025Guru - Experienced User
funnybesbes wrote:Anyway, I ran seatools with the "quick test" feature, it passed without any error or warning (the disk is new so I wouldn't have expected otherwise). I can run an extended one if you want.
Interesting.
FWIW, my own practice is to run the
- quick test
- extended test
- write test (single pass overwrite)
before I put the disk into the NAS. That is because I've some out-of-the-box disks pass the extended test, but fail the write test - and vice-versa.
You could run the extended tests, but the NAS normally would just do the short smart test - which I think is the same as the quick test.
Just wondering - did you try swapping the tray, and see if that makes any difference? I'm thinking that maybe the power or SATA connection isn't quite there.
funnybesbes
Jul 24, 2025Aspirant
Quick test and expanded test both passed, didn.t found write test in SeaTools but the disk cloner managed to copy data from the SSD that was in the NAS onto the new HDD, so I assume that writing data on that disk works too.
I did not try swapping the trays but I did try inserting the disk either on slot 1 or 2. (SSD was pinned with screws on its tray). I also tried putting the disk on the tray and only inserting the sliding part of the tray (to make sure that the HDD would be connected to the SATA and alim port) then sliding the rest of the tray.
- funnybesbesJul 24, 2025Aspirant
Also, the SSD is detected on both slot, so the problem is not one of them not working.
I feel like its software related and not really hardware related as the disk led is on when the NAS is booting but off once the NAS is completly started.
- StephenBJul 24, 2025Guru - Experienced User
funnybesbes wrote:
I feel like its software related and not really hardware related as the disk led is on when the NAS is booting but off once the NAS is completly started.
I guess you could try tech support mode, and see if the disk is recognized. Let me know if you need more info on how to do that.
I am wondering if this is perhaps power-related (not affecting the SSD, but affecting the mechanical disk). Do you have another mechanical disk you could try as a test?
- funnybesbesJul 25, 2025Aspirant
I tried with 5 others HDD, 3 seagate and 2 westen digital, only one worked (one of the western digital).
I have noticed that the "act" led is blinking though. The manual indicate that it means that "a disk is doing some work" yet none of the disk led is on.
I will try the tech support mode, the manual gives information about how to reach that mode. But I don't know what to expect from here. It is not like I can plug a screen directly on the NAS, so do i have to connect through SSH while using the tech support mode ??
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