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ReadyNAS NV+: how to remove not exists volume and disks (disk failed)
Hello all! My Dad asks me for help, but I don't know what was happened and what what should I do. He has a ReadyNAS NV+ with 4 disks without RAID (standalone disks). One of them has dead. I'd took ...
One option is to upgrade the NAS to the final firmware (4.1.16) if it isn't running that already, and then do a factory default procedure to rebuild the NAS from scratch. Off-load all the data first of course.
If you stick with flexraid, you'd need to install RAIDar 4.3.8 on PC to get the NAS into that mode. https://kb.netgear.com/20684/ReadyNAS-Downloads Also with flexraid and independent volumes, I recommend doing the factory default with only one disk in place, and adding the remaining disks later. That insures that you don't accidentally end up with RAID-1 or RAID-5.
If you plan on upgrading disks, you need to stick with drives that are no larger than 2 TB. NAS-purposed disks (Seagate Ironwolf or WDC Red) are good options. Don't bother with the HCL, it hasn't been updated for several years.
Thanks for the idea. I'd already recovered data using UFS Explorer. So this is not a big problem. More nerves: that NAS, shows lines with 2 old already removed disks and does not suggest adding a new volume to a new disk (when replacing a dead one). There is no way to remove non-existent volumes from the system settings.
One option is to upgrade the NAS to the final firmware (4.1.16) if it isn't running that already, and then do a factory default procedure to rebuild the NAS from scratch. Off-load all the data first of course.
If you stick with flexraid, you'd need to install RAIDar 4.3.8 on PC to get the NAS into that mode. https://kb.netgear.com/20684/ReadyNAS-Downloads Also with flexraid and independent volumes, I recommend doing the factory default with only one disk in place, and adding the remaining disks later. That insures that you don't accidentally end up with RAID-1 or RAID-5.
If you plan on upgrading disks, you need to stick with drives that are no larger than 2 TB. NAS-purposed disks (Seagate Ironwolf or WDC Red) are good options. Don't bother with the HCL, it hasn't been updated for several years.
Hello. Sorry for the long pause. Are there any options not to reset to factory defaults? There are two more disks (healthy), that contains data.
Your NAS uses a dedicated parity disk - normally disk 4. The parity data on that disk can be used to recover data, but only if two of the remaining disks are ok.
But that only applies if the volume is in sync. If there were lost writes, then you'd have an out-of-sync volume, and likely will see some data loss.
You could potentially contract Netgear to get back the data - though that is expensive, and results are not guaranteed. https://kb.netgear.com/69/ReadyNAS-Data-Recovery-Diagnostics-Scope-of-Service
You can also use RAID recovery software on your own.
Either way, once you have the data you should do a factory default. That will give you a clean file system.
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