NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
ReadyNAS RN314 Degraded problem seems serious
I believe I have a serious problem going on with my RN314 (Firmware 6.10.3). About 40 hours ago I received an email that "Resyncing started for Volume data." and 30 minutes later that "Detected increasing ATA error count: [53] on disk 4". Panicked as I was, I started a Robocopy script from my Wife's PC for the approximately 4TB that is on the 4x8TB WDC drives it contains to a 10TB USB drive. I do have a sealed spare drive, but I thought to get the data off first. Perhaps that was a mistake.
Message that the disk was critical was received 24 hours ago. Panic increasing.
"Volume data health changed from Redundant to Degraded." received 12 hours ago. Sweat pouring down now. "Volume data is Degraded." was received 3 hours ago.
Have not been able get into the Admin screen at 192.168.x.x since this all started. RAIDar from my W10 VM on my MacBook Pro said that it was Resyncing at ~29% 24 hours ago. Now it is at ~40%. Long way to go. Cannot download the logs from RAIDar. Robocopy script still running.
Have spot-checked a few files on the NAS, and they seem well, but the panel is flashing "DEGRADED" messge.
As soon as the backup finishes, and the re-sync is complete, I will hot-swap the drive. I plan not to copy anything to the NAS in the interrim.
Any words of wisdom out there for a panicked person?
FWIW I purchased this new in October 2014 to replace an older ReadyNAS.
4 Replies
Degraded means you have lost redundancy. Your files are at risk if there is a second failure, but you have most likley not lost anything yet. A backup and resync ongoing simultaneously is going to put a lot of stress on the drives, whihc could trigger that second failure, and each is likely to slow down the other.
If it is drive 4 that is re-syncing, then you best bet is to remove it and stop the re-sync, as it likely will fail anyway. But it's important to know if it is drive 4. If it's not and you pull 4, that could make it worse. Can you download the logs via RAIDar? If so, mdstat.log will tell you what drive is in resync. If you can get in via SSH cat /proc/mdstat will also tell you.
But if you can't get into the GUI or download the logs from RAIDar, you don't know for sure if the problem is drive 4. You can try pausing the backup and trying the admin GUI or RAIDar if nothing above works for you. Everything else I can think of requires a re-boot, which is not a good idea before your backup is complete.
- The emails said it was 4. Hot swapped it and backup is quicker while the resync has restarted. Think all should be good.
Great! Yes, if it was trying to re-sync a drive with bad sectors, that can make it crawl.
Now, I recommend you keep that backup up to date just in case something worse happens in the future.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
