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yaraco's avatar
yaraco
Aspirant
Jun 15, 2015

Correct setup in order to facilitate further disk recovery

Hello there!

My question is quite in between several sections of the forum. I am the happy owner of a 2 bays ReadyNas Duo and a brand new 6 bays Nas OS 6.
The ReadyNas Duo is configured in X-Raid. While installing the OS6, I was wondering what I should do to transfer my disks from the ReadyNas Duo. It seams my comprehension of the system when I installed it years ago was quite blurry. Reading severals posts, it seams that the hardware architecture and the brand of a NAS is much more important than I thought.

My goal is to configure my new Nas in the more generic way. I want replication of data between my disks. If the hardware breaks, I want to be able to recover my data without beeing forced to buy the same exact model of Nas, which might be not produced anymore. Something even more perfect would be to just replicates disks one to one, and to be able to plug them on a computer to read the data on it.

Is this possible, and how should I configure my Nas to achieve it?

Thank you! :)

4 Replies

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  • mdgm-ntgr's avatar
    mdgm-ntgr
    NETGEAR Employee Retired
    Use the default X-RAID2. Or better yet, disable X-RAID, delete the volume created by default, create a RAID-6 volume and re-enable X-RAID.

    An ordinary x86 Linux PC can be used with free tools to attempt data recovery. If the chassis fails but the disks, array and volume are fine this should work well. However I would not rely on being able to do this. No important data should be stored on just the one device.
  • Thank you for your answer!

    I'm quite disturbed by the "no important data should be stored on just the one device". That's why I have bought a NAS! I want a backup for important data and I need to be able to recover them in case of a disk failure or a Nas failure! Isn't it one of the fundamental idea of a NAS? I would have guessed that Netgear is providing such tools.
  • mdgm-ntgr's avatar
    mdgm-ntgr
    NETGEAR Employee Retired
    If the primary copy is on your PC/Mac then the copy on the NAS is a backup.

    Please have a read of Preventing Catastrophic Data Loss

    RAID is great, but there are some problems it cannot protect you against. If the primary copy of your important data is on the NAS you should have another copy of it on another device, preferably with at least one copy off-site for disaster recovery.

    With RAID-6 for example you would have protection against two disk failures (whereas the default for X-RAID is 1 disk failure). But disk failures are not the only thing that can happen. RAID is great and is a great first line of defence for your data.

    If the NAS chassis fails out of warranty you can use free Linux tools to recover data assuming enough of the disks are fine and also the array and volume are fine.

    If newer models at some point in the future run a different OS we will likely have a method to be able to attempt data recovery of arrays from the current models using newer units.

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