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RND2000-100NAS no longer shows up on my network!
Hello,
I'm hoping the community here may be able to help me! I don't run my NAS 24/7 and generally power up to store/retreive files from it and then power down by holding front PWR button.
Over the weekend I powered on my NAS and noticed the shared drives that normally show on my Mac were not there. I have not changed my network in any way and can still communicate with other devices on my network, just not my NAS.
What I know:
1) I let the unit fully boot up such that there was no disk activity
2) The network lights on the unit were ON
3) Raidar does not see the unit which is no suprise given step 4, below
4) I've run 'arp -a' from terminal and I don't see the NAS
5) In my current state, I can't shut down the unit gracefully, ie; I can't hold the power button and have it respond by shutting down. I need to do a hard power cycle
6) If I do a hard power cycle, I get back into the same state after the unit does a self diagnostic; both disk lights are on, network lights are lit up, but the unit is not on the network and doesn't response to holding power button.
Thoughts as to what's going on here?
8 Replies
There are multiple possibilities with this e.g. one/more bad disks, faulty network port on NAS or router/switch, bad ethernet cable, other hardware issue, problem on 2GB root volume etc.
Thanks for the quick reply, mdgm!
I’m going to discount your suggestion of bad network port on switch/router as I also tried a direct connection to NAS using a static IP on my computer. Again, no success and arp –a returned nothing. In addition, as I mentioned, I can’t power down unit gracefully which if an external issue (like router/switch/network cable) shouldn’t affect the ability for the NAS to power down.
So that leaves us with faulty port on NAS, bad disk(s), other hardware issue, or problem with 2GB root volume.
Is there anything further I can do to try and diagnose and/or fix my issue or am I basically looking at needing to buy a new NAS and transferring data off existing drives some other way?
The next step in diagnosis is to power down, remove the disk drives (labeling by slot), and then power up again.
The NAS won't fully boot, but RAIDar should be able to discover it (and report it's diskless status). While doing this test, also check the activity LED for the NAS ethernet port (near the connector), and also the LED on the other end of the connection.
If RAIDar sees the NAS, then the problem is most likely with the disks. If not, it is most likely with the NAS chassis or power brick.
RAIDar can be found here: https://kb.netgear.com/20684/ReadyNAS-Downloads#raidar
You can also try R-linux for Windows to extract any data from the NAS - found here: http://www.r-tt.com/free_linux_recovery/
Connect disk 1 of the NAS to a Windows PC (either SATA or via a USB-sata adapter. Windows won't recognize the format, but R-linux should still see it, and let you access the data volume. Unfortunately I don't know of any Mac tools that can do this. If you have a linux system (or are prepared to boot your Mac with a Linux "Live" disk) there is a way to try and mount the volume using linux shell commands.
Note that the two disks aren't identical - in particular the parity/mirror disk looks empty. Most of the time that is disk 1, but not all the time. So if this doesn't work, then try again with disk 2.
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