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Help needed - How to restore data from Readynas drive
Looking for the best way to do this transfer. Recently got the RN214 to replace a WD My Book Live 3TB drive. Started with 4TB drive and backed up a 1 TB, 2tb and 3 tb. I want to repurpose the 2 TB ...
BigShotBob13 wrote:
Now after reading I would need to start with the 2 TB, add the 3 tb and then the 4tb. Is that correct?With XRAID that that is correct. If you did that, then you'd end up with a 5 TB volume size (with 1 TB of the 4 TB drive being unused). The general capacity rule for XRAID is "sum the drives and subtract the largest".
BigShotBob13 wrote:
...WD Green drives...Although my ancient NV+ is still using these drives, I don't recommend them for NAS/RAID use (and neither does Western Digital).
https://support.wdc.com/knowledgebase/answer.aspx?ID=996 wrote:
WD only recommends using a Desktop drive in a RAID array with no more than two (2) drives (Raid 0 or Raid 1 only).NAS-purposed drives (WDC Red, Seagate Ironwolf) are better choices than desktop drives and similar in price.
You have a couple of options here:
- Don't use RAID redundancy - switch to flexraid, and then add the repurposed disks as jbod (each disk is it's own volume)
- Purchase a new 4 TB drive, so you get RAID-1 on existing 4 TB volume. Then switch to flexraid and create a jbod volume for the ironwolf.
- Get two new 4 TB drives, so you get an 8 TB volume, and use the older drives in the USB enclosures to back up the NAS.
- Ignore my advice (and Western Digital's) on drive choice, and do a factory reset with all your drives in place.
I'd go with the two new 4 TB drives option + USB backup option myself.
BigShotBob13 wrote:
used R Linux to recover the dataR-Linux doesn't support the BTRFS file system used on the NAS, so you can't use that. You could boot the PC up with a linux Live disk, install mdadm and btrfs, and then mount the drive using the linux shell.
The simpler way is to copy the files from the NAS shares over a wired ethernet network. That can be done with drag-and-drop, though a utility that can verify the copy (teracopy is one) might be a better option.
Note that RAID isn't enough to keep your data safe, so you should have a backup plan for your NAS.
BigShotBob13 wrote:
Now after reading I would need to start with the 2 TB, add the 3 tb and then the 4tb. Is that correct?
With XRAID that that is correct. If you did that, then you'd end up with a 5 TB volume size (with 1 TB of the 4 TB drive being unused). The general capacity rule for XRAID is "sum the drives and subtract the largest".
BigShotBob13 wrote:
...WD Green drives...
Although my ancient NV+ is still using these drives, I don't recommend them for NAS/RAID use (and neither does Western Digital).
https://support.wdc.com/knowledgebase/answer.aspx?ID=996 wrote:
WD only recommends using a Desktop drive in a RAID array with no more than two (2) drives (Raid 0 or Raid 1 only).
NAS-purposed drives (WDC Red, Seagate Ironwolf) are better choices than desktop drives and similar in price.
You have a couple of options here:
- Don't use RAID redundancy - switch to flexraid, and then add the repurposed disks as jbod (each disk is it's own volume)
- Purchase a new 4 TB drive, so you get RAID-1 on existing 4 TB volume. Then switch to flexraid and create a jbod volume for the ironwolf.
- Get two new 4 TB drives, so you get an 8 TB volume, and use the older drives in the USB enclosures to back up the NAS.
- Ignore my advice (and Western Digital's) on drive choice, and do a factory reset with all your drives in place.
I'd go with the two new 4 TB drives option + USB backup option myself.
BigShotBob13 wrote:
used R Linux to recover the data
R-Linux doesn't support the BTRFS file system used on the NAS, so you can't use that. You could boot the PC up with a linux Live disk, install mdadm and btrfs, and then mount the drive using the linux shell.
The simpler way is to copy the files from the NAS shares over a wired ethernet network. That can be done with drag-and-drop, though a utility that can verify the copy (teracopy is one) might be a better option.
Note that RAID isn't enough to keep your data safe, so you should have a backup plan for your NAS.
Wow, that was a fantastic and detailed answer!! I'll look into getting more 4 TB drives and use those as backups or as desktop drives.
Thanks so much for the help!!
Thanks so much for the help!!
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