Page 1 of 1

R-Studio or R-Linux

Posted: Sun Jul 28, 2019 9:17 pm
by sbtiti
I am trying to do a recovery of data from a five-drive Netgear ReadyNAS that I understand is using Linux X-RAID2 and would like to know if I should use R-Studio or R-Linux to recover data from a supposed corrupt partition on the NAS? I have no info about the RAID parameters to use.

Re: R-Studio or R-Linux

Posted: Mon Jul 29, 2019 4:44 pm
by Alt
You may try both for free. R-Linux is free, and therefore should be tried first. R-Studio in its demo mode will allow you to do all recovery work except saving recovered files.

Re: R-Studio or R-Linux

Posted: Mon Jul 29, 2019 7:50 pm
by sbtiti
Thanks for the reply. I have a license for R-Studio so no problem recovering data if I can get the RAID parameters. R-Studio shows several virtual mdadm partitions, so does that help you give me a starting point? Thanks.

Re: R-Studio or R-Linux

Posted: Tue Jul 30, 2019 10:41 am
by Alt
X-RAID2 is a mdamd RAID5, to my knowledge, so R-Studio should assemble them automatically.
1. What is a file system used in this NAS? ext4fs?
2. Can you post a screenshot of the Drives panel in R-Studio?

Re: R-Studio or R-Linux

Posted: Tue Jul 30, 2019 1:52 pm
by sbtiti
When you look at the attached screenshot you'll see at the bottom left several "virt-mdadm" sets. When I highlighted one of those, 5 HarddiskVolumes became highlighted in blue (amongst the 5 Seagate drives you see listed). I created a virtual block RAID 1 and added the blue volumes to that, but as yet I cannot tell if it has found any RAID parameters or what is going on. (the detection has only completed 3% after running 12 hours)
small-R-Studio-5-drives.jpg
I tried to place the drives in the same SATA port order as they were in the NAS, but I don't know if that matters. My recovery PC only had 4 SATA ports, so 2 drives are running from a SATA expansion card. These are the bottom 2 Seagate drives shown in the screenshot.

The original issue was 3 quick power outages that made the ReadyNAS lose the RAID config. All the drives are SMART healthy but I have about 1TB of pix I cannot lose and I assumed that trying to rebuild the array on the NAS would destroy the data. The original settings (as I remember) was set to an XRAID2 with dual redundancy (recover from 2 drive failures).

What do you recommend I do from here? Thank you for any suggestions since I know nothing about getting R-Studio to detect the RAID parameters. I ran the free ReclaiMe, also to no avail.

Re: R-Studio or R-Linux

Posted: Mon Aug 05, 2019 1:50 pm
by Alt
X-RAID2 creates mdadm RAIDs from other mdadm RAIDs. We plan to implement this feature in some next version.

Re: R-Studio or R-Linux

Posted: Tue Aug 06, 2019 2:31 pm
by sbtiti
So does this mean I probably won't be able to recover much now with R-Studio and these mdadm RAIDs? If this is true, do you know a product I could use now? Thanks.

Re: R-Studio or R-Linux

Posted: Wed Aug 07, 2019 4:59 pm
by Alt
I would create a virtual raid from the partitions of 1.81 TB and try to automatically find its parameters.