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SOS code on ReadyNAS Duo RND2000 V2
I've been trying to post in this forum but it's been impossible from start to finish. First the country selector on the register page doesn't work. Then I couldn't post a topic because a small empty ...
saudade wrote:
you have a Readynas Duo V1 not V2. Note it doesn't say V2 on the front panel.
Correct. user8273487 has the original Duo that runs 4.1.x firmware
Note that when you booted up diskless you should have seen a slightly different pattern - two slow blinks instead of three.
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 configurationThere are a couple of causes here, but the most likely is a failed disk. The system normally boots from disk 1. So maybe try removing that disk and booting with only disk 2 installed (keeping it in slot 2) and see if that makes any difference.
You can also try testing the two disks in a Windows PC using vendor tools. (WD's dashboard software for Western Digital, Seagate's Seatools software for Seagate).
Best options for replacement are the 2 TB WD Red Plus or the 2 TB Seagate Ironwolf. Avoid the WD Red models - these are SMR, which don't work well with NAS. Also avoid desktop drives - almost all of them in this size range are also SMR.
Do yo have data you need to off-load?
Thanks for the information. So 3 slow blinks = "Bad contents on root partition of disks", but it does it even without disks being present.
What I would like to ask is, what format does it want the disks to be in for a new installation? Bad contents on root partition suggests that it wants a root partition, but I'm not sure how to create one of those or how to set up the drives for its needs.
P.s. The nas says "RND2000 v2" on the back, that's why I put it down as a v2. It also says "NGR-RND2000 (B)" and "272-10635-02".
The link posted above says "test the disks with vendor tools." , which tools?
Did you try booting up the NAS without disk 1 (keeping slot 2 empty). It's possible that the root partition on disk 2 is ok (the NAS normally will try to boot from disk 1).
Do you have a backup of the data on the NAS? If not, you need to off-load (recover) anything you care about before proceding further.
user8273487 wrote:
The link posted above says "test the disks with vendor tools." , which tools?
I posted them above -WD's dashboard software for Western Digital, Seagate's Seatools software for Seagate
user8273487 wrote:
So 3 slow blinks = "Bad contents on root partition of disks", but it does it even without disks being present.
Are you sure it isn't doing 2 slow blinks without the disks???
user8273487 wrote:
The nas says "RND2000 v2" on the back, that's why I put it down as a v2.
The labeling is quite confusing - I think if Netgear had a do-over they would have branded both the Duo v2 and the NV+ v2 differently.
user8273487 wrote:
What I would like to ask is, what format does it want the disks to be in for a new installation?
The NAS needs to format the disks, and it will create the root partition and install linux and the NAS application software on it. You can either boot up with formatted disks or you can do a factory default using the boot menu. Pages 15-16 here give you more info on the boot menu options:
If you formatted the drives on a PC as GPT and it created a "protective system partition", your NAS cannot delete that. Diskpart from a Windows command line will allow you to delete it. Alternately, do a quick erase with the same vendor tools StephenB is recommending for testing the drive. What the NAS wants is drives that are completely unformatted. The error message is saying that there is one that it can't read.
Sandshark wrote:
Diskpart from a Windows command line will allow you to delete it.
As will the Windows Disk Manager (GUI).
Generally I run the full vendor diags on a PC before I install new disks in the NAS. With Seatools, that includes the full read test and the full write-zeros test.
Unfortunately WD's dashboard software doesn't include the write-zeros test. Which tilts me a bit towards Seagate drives. Some of my out-of-the-box disks have passed the read test, but failed the write test (and in some cases they've failed the read test but passed the write test).
As I said above, avoid SMR drives, and make sure your disks are no larger than 2 TB.
In reply to StephenB:
1. "Did you try booting up the NAS without disk 1 (keeping slot 2 empty)" - do you mean with the slot 1 disk only? I can try this.
2. "Do you have a backup of the data on the NAS?" - there is no need to worry about data. I shredded the drives with Killdisk and factory reset the OS. I'm surprised that it didn't understand what to do with fully shredded disks, or ones with a fat32/exfat partition on them.
3. On vendor tools, my drives are Samsung ones. I think "Samsung Magician" might be what I need for that, although it seems primarily aimed at SSDs and not HDDs.ChatGPT also suggested HDDScan so I will try both.
4. If you look at the video from 5 seconds onwards, you can see 3 slow blinks. I'm not sure if it's different with/without drives in.
user8273487 wrote:
do you mean with the slot 1 disk only?
NO. I meant booting with only disk 2 (keeping it in slot 2).
But that is a waste of time now, since you wiped the disks.
user8273487 wrote:
If you look at the video from 5 seconds onwards, you can see 3 slow blinks. I'm not sure if it's different with/without drives in.
Your video had the disk trays inserted. Unless something is very wrong with your chassis, it will only blink twice without disks.
user8273487 wrote:
I shredded the drives with Killdisk and factory reset the OS. I'm surprised that it didn't understand what to do with fully shredded disks, or ones with a fat32/exfat partition on them.
Not all ReadyNAS have identical behavior in this case, and I don't recall exactly what the boot flash in the original Duo does. But many people wrongly assume that they can just insert PC disks into the NAS with no data loss. So ReadyNAS do have some policies in place to keep that from happening. In any event, the Duo doesn't support exfat.
If KillDisk left the disks unformatted (simpley wiped), then the NAS should have done a factory install when you powered up the system with them in place. That would start after about 10 minutes (to give you time to switch from XRAID to FlexRAID using RAIDar).
user8273487 wrote:
On vendor tools, my drives are Samsung ones. I think "Samsung Magician" might be what I need for that, although it seems primarily aimed at SSDs and not HDDs.ChatGPT also suggested HDDScan so I will try both.
I think Magician is specifically designed for SSDs, not mechanical disks. Samsung sold their mechanical hard drive business to Seagate in 2011. So you could try Seatools.
I have a Duo V1. Yes, the label say V2 on the model number yet it only says ReadyNas Duo on the access door. Mine runs 4.1.16 (the last version).
I've had mine since around 2011 and sat dormant for a number of years after "upgrading" to a different brand. Took a bit it get it operational but it works fine now (thanks to StephenB and Sandshark).
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