Storage Spaces virtual disk status incomplete

I have upgraded my storage server from 2012 R2 to 2016 today.

I have 3 JBOD's and 2 storage servers. with 2012 R2 if I used to unplug one of the jbods the disks would go to a "Degraded" status as I had a 2 way mirror and enclosure awareness.

Once I plugged the JBOD back in it would go to inservice, and then be fine afterwards.

Since upgrading to 2016 however, I am now getting (Degraded, Incomplete).  When I plug the JBOD back in it does go back to inservice and then works as expected.

While in this state, my Hyper-v's that are mounted on the virtual disks still seem to work ok. However I am just a bit worried about moving my production servers to this with the extra status.

Does anyone know if this would affect the data on my servers?

Thanks in advance for any help.
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Cliff GaliherCommented:
It's not really a new status. It is just a new way of more fully reporting why the status is degraded.
CaptainGibletsAuthor Commented:
It doesn’t always say degraded sometimes just incomplete.

I wondered if it is because on my 2012 r2 setup I had 3 jbods with 4 ssd and a columb count of 4.  So even if I lost 1 jobs there was still enough ssd for 2 data copies.  However with my new setup I have gone with 6 columns instead of 4 for speed. So if one jbod does there isn’t enough ssd for both data copies.

Does that mean that my data is still safe in the new mode? I won’t suffer data loss etc?

I’m currently filling 40tb of space to check it myself in the morning but any feedback would be good 😂
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
Once the JBOD is plugged back in check on the status of the virtual disks. They should be in a rebuilding state.

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That should tell you the details for each virtual disk and its state.
Get-VirtualDisk | FL

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That should tell you the status of the enclosures and their components.
Get-StorageEnclosure | FL

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There are a few others that deal with specific parameters that I can't seem to find at the moment.
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
2-Way Mirror means 1 disk then the works is at risk.

Make sure to run the following:
Set-StoragePool -FriendlyName "Storage Pool 1" -RetireMissingPhysicalDisks = ALWAYS

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And always leave at least one or better two full disk's worth of free space in the pool plus about 300GB to allow for an automatic rebuild of the lost disk into free pool space. Otherwise, like RAID 5, one disk gone means one more could be on the way! It's a risk I prefer not to take.

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