Christopher Juckins

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==== Recover Data from failed Netgear STORA MS2110 NAS ====

  * The NETGEAR MS2110-1000NAS failed
  * It would only power on but disks would not sync
  * Attempts to forcefully reset it did not work

Below are the steps used to successfully access the data using 1 of the hard disks.  The main internet links used to establish this procedure are [[https://www.experts-exchange.com/questions/26952383/How-do-I-access-data-on-a-Netgear-Stora-formatted-drive.html|How do I access data on a Netgear Stora formatted drive?]] and [[https://www.spinics.net/lists/raid/msg44459.html|Desperate: mdadm fails to assemble raid saying devices are busy]] (use 'next by thread' to see all the email discussion)

This STORA appears to use a software RAID configuration and the data is formatted using the Linux XFS file system.

The basic idea is to have a desktop PC running linux, such as 64-bit Red Hat Enterprise Linux 6 (RHEL6) or [[https://www.centos.org/|CentOS6]] which supports the XFS file system.  Power it off, and attach the STORA hard disk as a secondary drive (it uses a SATA connection).  Linux should recognize the hard drive (probably as /dev/sdb1) and using the steps below you can mount the drive.  Then the data can be copied off the drive, or rsync'd to a remote machine.  

<code>
# cat /proc/mdstat
Personalities : [raid1] 
md127 : active (auto-read-only) raid1 sdb1[0]
      976562432 blocks [2/1] [U_]
      
unused devices: <none>
</code>
The result shows what the active RAID1 device is, as seen above it is **md127**.

<code>
# mdadm --stop /dev/md127
mdadm: stopped /dev/md127
</code>
This stops the RAID device so you can act upon it.  Look for confirmation that it is **stopped**.

<code>
# mdadm --assemble /dev/md127 --run /dev/sdb1
mdadm: /dev/md127 has been started with 1 drive (out of 2).
</code>
This starts the RAID with 1 drive

<code>
# mkdir /stora
</code>
This creates a local mount point for the STORA drive you are about to access

<code>
mount /dev/md127 /stora
</code>
The NAS hard disk is now accessible in /stora.  

<code>
cd /stora
</code>
View the files and copy them to another location, rsync is a good tool for this.