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Readynas DUO disk issue - blinkng LEDs
I have a Readynas Duo (V2 I think).
Two 1TB seagate disks, it has worked well for about 11 years.
Recently one disk showed an error, so I bought new disks which are 2TB.
New disks (brand new - unused) are Seagate ST2000NM0033 which are on compatability list.
Hot swapped, so removed one 1TB disk, inserted the 2TB, system recognised it, initialised then synchronised, then fully redundant volume. Then removed other 1TB, swapped it for second 2TB, and system did the same, finished fully redundant.
However system showed the volume is only 1TB with 1TB of disks unused.
Tried restarting and sytem does not start, just ends up with ALL green LEDs flashing , 3 fast, 3 slow.
I have tried this several times including requesting "re-allocate and restart" through frontview.
Put 1TB disks back and it boots normally.
Any suggestions please?
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ColinPennifold wrote:
I have a Readynas Duo (V2 I think).
Two 1TB seagate disks, it has worked well for about 11 years.
The v2 was launched in Nov 2011, so if you purchased in 2010 you have a v1 (original Duo). It's important to know for sure, as the platforms are very different. Also please let us know what firmware your NAS is running.
The original (v1) Duo:
- says ReadyNAS Duo on the front panel
- runs 4.1.x firmware
- often has labels that include v2.
The Duo v2
- says ReadyNAS Duo v2 on the front panel
- runs 5.3.x firmware
ColinPennifold wrote:
just ends up with ALL green LEDs flashing , 3 fast, 3 slow.
LED blink behavior for 2 disk systems is three quick blinks of all disk LEDs and the backup LED, followed by an 1s delay, followed by a number of slow blinks. The number of slow blinks will be the error code.
Current error codes:
1 - Vendor mismatch
2 - No disks detected
3 - Bad contents on root partition of disks
4 - Flash error
5 - Unsupported RAID configurationSomething went wrong with the install.
ColinPennifold wrote:
Put 1TB disks back and it boots normally.
Any suggestions please?
If you don't have current backup of your data, then you should take care of that. It is at risk if you have one disk that is failing.
I also suggest testing the new disks in a Windows PC (connected with either SATA or a USB adapter/dock) with Seatools. Sometimes new disks do fail quickly out-of-the-box. I suggest running both the long (non-destructive) test and the full write-zeros/erase disk test. The latter is an "advanced" test, and you do need to jump through a couple of hoops to get to it.
Thanks for the reply
Firmware is latest that there was RAIDiator 4.1.16 [1.00a043] So this suggests a V1 even though label says V2.
What I do not understand is why the new disks worked fine after hot swap, initialisation and RAID sync, the system showed fully redundant, but only give failure indication on NAS restart ?
Could it be that despite being on HCL they are not fully compatible?
I do have a full backup on an external disk which has been copied elsewhere, so my data are safe
I have just found an ebay seller with a new unused 1TB disk same as are in there, so I will try that.
I am considering buying an RN422, I hope the new disks will work with that.
The NAS also no longer shows up as a network drive on my windows PCs, I believe that this is due to Windows 10 update changes. I have tried the various solutions I see posted, but no luck. I can connect using a saved shortcut, whch works sometimes!
ColinPennifold wrote:
So this suggests a V1 even though label says V2.
I mentioned the labeling above. Netgear also uses "V2", "V3" in labels to identify hardware revisions (usually minor component changes).
So you have hardware revesion 2 of the original (v1) Duo. Not the Duo v2.
Netgear made a huge mistake when they branded the Duo v2 and NV+ v2, and many, many owners of the original Duo and NV+ mistakenly think they have the v2 platforms.
ColinPennifold wrote:
Could it be that despite being on HCL they are not fully compatible?
The HCL for that model hasn't been updated in many years. But any 2 TB enterprise disk will work, as well as WD Red Plus or Seagate Ironwolf disks. Avoid WD Reds as they are SMR. Duo has a max disk size of 2 TB. My own Duo has a WD20EFRX and a Seagate ST32000542AS.
Any enterprise or CMR NAS-purposed drive will with the RN422 btw - though it can handle much larger disks (16 TB drives on on its HCL). The 18 TB SATA drives coming on the market would work too, though they are still extremely expensive.
ColinPennifold wrote:
What I do not understand is why the new disks worked fine after hot swap, initialisation and RAID sync, the system showed fully redundant, but only give failure indication on NAS restart ?
I always test new disks before I use them - using the long test and the full erase disk/write zero tests I suggested above. I have had new disks fail those tests (sometimes failing one and not the other). Note disks can be mishandled during shipment.
So I'd start with the assumption one or perhaps both of the disks failed - and test the disks to see if that's the case.
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