BurntOC

It is the same stated capacity, so hopefully so.  I'm actually wondering if I should format the new drive for ZFS per the beta notes, to take advantage of some features unsupported by xfs.  I'm not on v7 on that server atm, but I'm considering it after my primary server upgrade has seemingly gone quite well so far.  Maybe I could use a USB SSD enclosure then use mover to move everything over, remove the original drive and pop the new one into the m.2 socket?
 
If not this approach, I take it if I've cloned the drive with Macrium that I can reset and reimport, and the shares and permissions should be fine due to the /mnt/user mappings Unraid uses?

Fixed it myself.  In case this helps others, here's my template, through you'd want to verify the network type and paths match what you want. 
 
<?xml version="1.0"?> <Container version="2"> <Name>NextPVR</Name> <Repository>nextpvr/nextpvr_amd64:stable</Repository> <Registry>https://hub.docker.com/r/nextpvr/nextpvr_amd64</Registry> <Network/> <MyIP/> <Shell>bash</Shell> <Privileged>false</Privileged> <Support/> <Project/> <Overview>NextPVR TV recording and video player software.</Overview> <Category>MediaApp:Video</Category> <WebUI>http://[IP]:[PORT:8866]/index.html</WebUI> <TemplateURL/> <Icon>https://hub.docker.com/r/nextpvr/nextpvr_amd64</Icon> <ExtraParams>--security-opt=no-new-privileges</ExtraParams> <PostArgs/> <CPUset/> <DateInstalled>1695046806</DateInstalled> <DonateText/> <DonateLink/> <Requires/> <Config Name="Recordings" Target="/recordings" Default="" Mode="rw" Description="Recordings Folder" Type="Path" Display="always" Required="false" Mask="false">/mnt/user/media/recordings</Config> <Config Name="Buffer" Target="/buffer" Default="" Mode="rw" Description="Live TV Folder" Type="Path" Display="always" Required="false" Mask="false">/mnt/user/appdata/nextpvr/buffer</Config> <Config Name="Configuration" Target="/config" Default="" Mode="rw" Description="Configuration Path" Type="Path" Display="always" Required="false" Mask="false">/mnt/user/appdata/nextpvr/config/</Config> </Container>  

Okay, thanks.  I mounted in maintenance mode and did a file system check without the -n flag on those drives and the error hasn't shown back up yet.  I'll give it a bit more time and them mark this as solved if it doesn't happen again.
 

Guess you have to add a lot of drive space for virtual memory or make your VM memory a lot larger than 8GB....