NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
RN104: ghost “NG-8TB-Seagate” volume (RAID unknown) Inactive/Unprotected
I have a ReadyNAS RN104 that’s working fine from the data point of view, but the volume configuration seems corrupted and is generating constant volume health alerts that I cannot clear. I’m hopi...
OS6's JBOD volumes are actually MDADM single-drive RAID1 volumes where the OS simply does not tell you that the RAID is "degraded" (not redundant). It appears that something is amiss with that process on your NAS. There are some SSH commands that may resolve that, but getting the information StephenB has requested is needed to determine if those are the right ones in your case. The content of mdstat.log will be especially telling.
In addition, did you have the "phantom" 3TB volume before you swapped out the other 3TB for the current 8TB? Do you know which was your "primary" drive (normally, the oldest) before you did the swap?
Thanks, just creating the log zip now.
The "Phantom" 3TB drive I'm guessing is actually my old 3TB Western Digital drive that started to fail, so I replaced that with my new 8TB Seagate and copied all the old files over to that (apart from a handful I lost die to the impending failure).
When I was setting up the new 8TB I think I did something wrong as I thought I had created a new volume, then couldn't see it so repeated the process. Not sure what I did, but that may have something to do with it?
I'm not sure what my "primary" drive would be, how could I see that info please?
I'm not sure what my "primary" drive would be, how could I see that info please?
First, what it is...
The "primary" RAID group (drive since you use jbod) is the one that hosts your apps and home folders.
In your case, mounts.log shows
/dev/md124 on /home type btrfs (rw,noatime,nodiratime,nospace_cache,subvolid=2962,subvol=/home)
/dev/md124 on /apps type btrfs (rw,noatime,nodiratime,nospace_cache,subvolid=2961,subvol=/.apps)
mdstat.log shows md124 is sdd3 (partition 3 on drive sdd)
md124 : active raid1 sdd3[0]
7809175808 blocks super 1.2 [1/1] [U]
And disk_info.log tells us that this is your newly added 8 TB drive.
Device: sdd
Controller: 0
Channel: 0
Model: ST8000DM004-2U9188
Serial: WSC3064D
One consequence here is that any home folders and apps would have been lost when you replaced this drive.
Note this is an SMR drive, which isn't well suited for RAID. Fortunately you are using JBOD. Still you likely will find that you will get poor performance with sustained writes.
An Ironwolf would have been a better choice.
More later.
Thanks. I only actually use this NAS unit once a week to do a backup run so it normally doesn't get much use so I figured that an SMR drive although not ideal, would be adequate for my needs. (I normally only ever use WD Red drives, but these are really scarce currently and when you can find them, they are stpidly expensive).
Saying that though, I do need this nas unit/drives to work properly, and I don't actually think I'm any closer to resolving the problem.
Any other ideas?
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
