NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
RNDU2000 can not access disks after upgrade.
The message below says that I may not have permision to use this resource:
Status:
All the files were on drive 1, which I copied to a USB disk with Home NAS Recovery. Excellent customer care, they worked all Sunday to improve the application until it could read the RAID partition.
The NAS wouldn’t start with disk 1 alone.
DDrescue completed to clone disk 2 today, with almost no lost data. It was not much help though, as this drive doesn’t contain 2016 files.
The NAS started with disk 2 alone, but insisted that the old disk 1 is present. Reinstalling the OS convinced the NAS that a new disk 1 is present, but “…Not redundant. A disk failure will render this volume dead”. I could access all my files, but have no redundancy. A reboot forced synchronizing (not finished).
So now I am back at normal and yes, I have already ordered NAS backup (Livedrive).
To summarize weeks of effort, here is what to do If BOTH drives are damaged and you don’t have current backup:
- Clone both drives with DDRescue or ddrescue-gui (Linux utility). Note that it can take up to several weeks
- Copy all files to a third disk from each RAID-disk separately, do it with Home NAS Recovery, ReclaiMe or mount the drive on a Linux
- Insert both disks back to the NAS and power up. You may need to reinstall the OS (boot menu, see manual) if it still doesn’t work
- An additional reboot will sync the drives if they are not working as RAID
Thank you all for your help. The next question: How do I stretch the cloned 2TB partitions to fit the new 3TB disks?
But will it be a bad idea to boot the NAS with both new drives inserted, knowing that each missing some files? I could first try to read the disks on a PC with a RAID software, but I need to parch a seperate 2TB disk to copy to if I do so.
Status:
All the files were on drive 1, which I copied to a USB disk with Home NAS Recovery. Excellent customer care, they worked all Sunday to improve the application until it could read the RAID partition.
The NAS wouldn’t start with disk 1 alone.
DDrescue completed to clone disk 2 today, with almost no lost data. It was not much help though, as this drive doesn’t contain 2016 files.
The NAS started with disk 2 alone, but insisted that the old disk 1 is present. Reinstalling the OS convinced the NAS that a new disk 1 is present, but “…Not redundant. A disk failure will render this volume dead”. I could access all my files, but have no redundancy. A reboot forced synchronizing (not finished).
So now I am back at normal and yes, I have already ordered NAS backup (Livedrive).
To summarize weeks of effort, here is what to do If BOTH drives are damaged and you don’t have current backup:
- Clone both drives with DDRescue or ddrescue-gui (Linux utility). Note that it can take up to several weeks
- Copy all files to a third disk from each RAID-disk separately, do it with Home NAS Recovery, ReclaiMe or mount the drive on a Linux
- Insert both disks back to the NAS and power up. You may need to reinstall the OS (boot menu, see manual) if it still doesn’t work
- An additional reboot will sync the drives if they are not working as RAID
Thank you all for your help. The next question: How do I stretch the cloned 2TB partitions to fit the new 3TB disks?
The data partition gets expended by the NAS if the cloned disks are larger than the source disks:
And one last comment about backup:
For a home user there is not much to choose from for a NAS:
- Most packages are smaller than the NAS. The NAS-size solutions are too expensive.
- Some packages do not have a native backup; they require a dedicated PC. Very unpractical if this PC is portable.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
