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Disk volume no longer active - force activation?
I come in hopes to be saved from myself and that I didn't in fact lose it all. I've had this NAS for a few years now, and it has done me well. I started with a 3TB and over the years I've started...
Did you try booting to volume read-only mode?
On Linux you'd need mdadm for the RAID and btrfs-progs for the filesystem.
So you could try at your own risk e.g. (note if not logged in as the superuser you may need to preface commands with sudo)
To install mdadm and btrfs-progs if not already on the system:
# apt-get install mdadm btrfs-progs
To assemble the RAID
# mdadm --assemble --scan
In case it's a multi-layer data volume we should scan for BTRFS devices
# btrfs device scan
We should also check with md RAID device(s) correspond(s) to the data volume
# btrfs fi show
And try mounting it read-only
# mount -o ro -t btrfs /dev/md127 /mnt
This working would assume things are in a good state which they may not be.
If it won't mount you can check dmesg for clues# dmesg | tail
I performed the destroy with ONLY the 6TB drive in place, which is how the 3TB drive still exists.
I talked with someone who knows far more about Linux than I and was able to get into the system with PuTTY, and I can see the partitions, but I am unable to mount them, as it reports the partition being a filesystem type 'linux_raid_member' which mount could not recognize based on what I DO know about Linux. That I could see the partition really led me to believe I could do something on my own, but frankly, I have no idea what.
I'll need to go hunting for a SATA cable, but I will give ReclaMe a try, but I have a feeling that it'll be easily possible for it based on my above observations in PuTTY, and if I can avoid the $200, I would like to try.
Since you can "see" your data another approach could be to format the 6TB to NTFS using your PC, obtain a USB caddy for that drive and attach to the ReadyNAS.
Then using Linux copy your Data folder to to the USB Drive (this will be in the folder /Media on the ReadyNAS)
For Linux noobs (like me) I can recommend a file manager called Midnight Commander, to install it using putty type:
apt-get install mc
To open Midnight Commander type mc
You will be presented with a dual screen, in the left hand screen highlight your /Data folder in the right hand screen highlight /media folder, click on it and select
USB_HDD_1 (the number 1 may be different)
Then highlight /Data on the left screen again and click Copy at the bottom of the screen and OK on the pop up
That should copy all your data to the 6TB USB Drive, this is your backup which you should disconnect (maybe by shutting down the Readynas gracefully first).You could connect it to your PC to check your data is there ok.
What you do next is up to you, factory default the ReadyNAS with only the 3TB or a NEW 6TB drive installed, setup your shares and settings, plugin the 6GB USB to the NAS and reverse the above process, MC tutorial is HERE
I can only see the partitions. I could not figure out how to mount the partition, however.
Are you logged in as user root with ReadyNAS password
Have you installed Midnight Commander
Yes, otherwise I can't even attempt to mount. The problem is that mount doesn't recognize the filesystem. Perhaps the command should be altered? My Linux knowledge is extremely limited, but the command I was using to get that far was 'mount /dev/sdb3/ /mnt'
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