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Forum Discussion
ReadyNAS 316 upgrade to 6.10.5
I just added an additional 18TB drive to my 316. It took 5 days and some when I decided to remove the 12TB to replace that drive with another 18TB drive. There were 6 drives and now there are only 5 ...
I'm a bit confused on what RAID mode you were in before.
Did you set up JBOD RAID groups on each disk, and concatenate them together? Or did you do something else?
What took 5 days, since with JBOD there shouldn't have been any resyncs needed???
NathanWoodruff wrote:
DISK1 still shows that there is 58TB of data on that drive but the new 18TB drive is no longer apart of DISK1 raid. I get the message "Remove Inactive Volumes to use the disk #2,#3,#5,#6" the drives that are in RED"
Please don't tell me that this update killed the RAID
The screen shot is saying 58 TB in the volume (not the drive), which is a bit weird with an 18 TB disk in JBOD. Normally the inactive volume message happens when the RAID array is out of sync or if there is some corruption in the BTRFS file system. It's not the update itself that did damage - something was likely already wrong, and any reboot of the NAS would likely have given you the same symptoms.
It was not an X-Raid but a Flex-Raid because way back when, when I was using a 202, 1 TB drives were expensive and I wanted to get the most storage space as possible. This JBOD drive is the same drive that was on the original 1TB x 2 drives. I moved those drives to a 424 and added more drives and removed the 1TB drives one at a time. Over the years it moved to a 316 which is the current NAS with swapping in and out ever larger and larger drives.
It has worked well until last night.
How do I fix this to get the data back?
NathanWoodruff wrote:
It was not an X-Raid but a Flex-Raid because way back when, when I was using a 202, 1 TB drives were expensive and I wanted to get the most storage space as possible.
I get that, but we still don't know what RAID modes you set up with flexraid. Did you have a single volume before this happened? Or multiple volumes?
NathanWoodruff wrote:
How do I fix this to get the data back?
You basically have three options.
- do a factory default, reconfigure the NAS, and restore all the data from backup. That of course will be very painful, given the size of your disks.
- contact Netgear paid support (via my.netgear.com), and get a service contract to fix this. They should be able to do it remotely.
- Attempt to fix it yourself via the linux command line.
There are multiple causes, and it is easy to do more damage if you don't know what you are doing. So I generally won't provide targeted advice on option 3 for this particular problem, as I don't want to create more risk for your data.
However, sometimes rn_enthusiast will or others will analyze your situation and give you advice on what commands you need to fix it.
"I get that, but we still don't know what RAID modes you set up with flexraid."
It is setup using RAID-5.
NathanWoodruff wrote:
"I get that, but we still don't know what RAID modes you set up with flexraid."
It is setup using RAID-5.
FlexRAID won't give you more space than XRAID when you use RAID-5, generally it will give you less. In your particular case, it will be only using 12 TB of each drive - wasting space on the 16 and 18 TB ones.
Also, you said you initially had 6 drives, but now only have 5. Did you somehow downsize the array via ssh, or just pull a drive?
It isn't clear at all why the volume is showing a JBOD group when you have a RAID-5 array.
Do you have a backup of the files? If you don't, then I wouldn't attempt option (3) - I'd contract Netgear support to fix the issue.
I think I have figured out the problem. The 18TB drive in the picture that is black and not red, is the brand new drive I just purchased. I was replacing the 12TB drive that was in slot 1 at the top. I did the process of removing the 12TB drive from the volume and that is what took 5 days to complete as it was moving all data from that drive probably to the 18TB new drive.
I have removed that 18TB drive and connected it up to a Windows 10 computer and it is showing no partitions on that 18TB drive at all. Trying to add a partition to the drive in Windows 10 fails. I'm beginning to believe the 18TB drive has completely failed as I ordered the identical 18TB drive at the beginning of 2020 and it was as dead as a door nail. It took two months to get a replacement. I'm beginning to believe that this 18TB drive is the same position except that this drive is recognized. I do feel the drive spin up though.
Can I reinstall the 12 TB drive that I just took out when I replaced it with the 18TB drive and rebuild the volume?
NathanWoodruff wrote:
Can I reinstall the 12 TB drive that I just took out when I replaced it with the 18TB drive and rebuild the volume?
Likely that will be out of sync, since you've run the NAS for some days w/o it. Try booting the NAS with bay 1 empty, and see if that works.
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