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NV+ V2 Volume expansion failed with 4x4TB WD red drives
Two days ago I installed the 4th WD red 4TB (supported in HCL) on my readynas nv+ v2 where I have other three WD red 4TB (1.7 TB free of 7.2). But after 48 hours I got a "Volume expansion failed" mes...
Once you have a good backup that you've verified is good, I would install all 4 disks and reset back to factory default (complete initialise). This should build a new x-raid system on the disks, without any expansion. You may need to use Raidar to set the unit up.
I'm not sure about the limit, but it's worth trying since you have the disks ready and waiting.
Epilogue
Back from my summer vacation I factory resetted the unit with all the disk inserted. But one of the old disk did not pass the test, I checked it with the WD diagnostic too and I had to wait for a warranty replacement.
But I did not want to wait so i factory resetted the unit with just three disk. Then, after a few days, I received the replacement disk and I tried to expand the volume but it failed again!
So I tried with a factory reset with all the four disks, selecting flexraid-raid5 mode. And finally I was able to get the 12GB (actually 10.8) and now the NAS is resyncing the last disk.
A side note: Chrome does not work for installing add-ons, I had to use Internet Explorer (this issue is not documented or I was unable to find it) to avoid a "server error" message.
Thank you for your help.
Thanks for confirming, sounds like you're NAS is all good now. Safari also fails installing add-ons, I had to use Firefox.
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