Mounted volume to docker is unavailable

I am hoping this is the right place for this as I assume it to be more of a unRAID issue than a docker issue, but we will see.

Long story short, I came from the days of a separate VM, my unRAID server has one job and that is to store data.  With that said, I had a second machine that hosted my vms that managed my applications, call it nzbdrone and nzbget.

Well, I finally saw the light and decided to move to docker, however, I was still not ready to put them on my unRAID server.  So, I mount a volume to the host system via NFS and then that volume is passed into the docker.  When I first start, everything is fine, but then once my disks spin down, the mounted drive in docker appear empty and missing.  Therefore, nzbdrone doesn't move files and plex told me I only had half a library as the files were missing since the last scan and were removed.  So I log into my host and verify the mount point is OK and then access the folder on the unRAID server.  It takes several seconds to respond while the disks spin up, but once they do, things return to normal and the docker app can once more see the data.  I am thinking that the issue is the way I am configured with what is essentially a double mount point so the data is viewed as missing.  Now, I know there are really only 2 options, keep the disk spinning at all times or move to version 6 where docker is on the host.  Well, 3 actually, I can move the data off unRAID to the docker system and keep it local there, however, we all know what a poor decision that would be.

When I was only running the vms with the single mount point, everything was fine.  I would still see the lag while the disks were spun up, but I saw this as normal behavior and since it was not actually impacting anything, I was not very concerned.

I really hope someone has some ideas as I just made the swith to docker this week and was really beginning to enjoy it, but this sort of issue will make the experience short lived.