Can you elaborate on how I would do that? If I could create a dummy file system on that volume specifically I would think I could use the same process to create the destination file system on another volume?

Not directly

You could try creating dummy fs using MVM on the volumes you don’t want to be used and the create your production fs

Or if a volume is complete unused move it into a user defined pool temporarily

Basically instead of specifying a pool you specify a meta

See the AVM and MVM manuals for example

I would do it this way of excluding the ones you don’t want so that you still get the normal AVM behavior for striping and auto-extend for your production fs

I attempted to create the dummy fs on the volume that I was trying to fill up but it complained that is was in use.

[nasadmin@VNX5500 ~]$ nas_fs -name dummyfs1 -create d20

Error 2216: d20 : item is currently in use by v111

[nasadmin@VNX5500 ~]$ nas_fs -name dummyfs1 -create v111

Error 2216: v111 : item is currently in use by s639,s1553,s1558,s1562,s1568,s909,s912,s686,s687,s692,s693,s694,s695,s702,s913,s80,s908,s911

From what I can see, since the disk is already involved with AVM and has vols/slices on it I don't have any way to create a file system on it using MVM.

I would suggest to have a local CS or PS guy who understands look at your config

/nas/tools/whereisfs can tell you whats using what – but it can still be difficult to understand if you don’t know the details of volume management

Not the complete dvol – but you could create slices on the remaining free space