vMotion disk to another lun

HI There,

We have a server that outgrew its LUN.

This VM has multiple drives and as a temp solution we are thinking to vMotion one of the drives to a neighboring LUN on the same SAN.

• What are the drawbacks of doing so except that in future if we would want to migrate this VM to another storage, we'll have to temporarily remove this particular disk before doing so?

And one more question: this particular machine has 720 GBs of RAM. And of course there is a huge .vswp. Please let me know if there are any feasible options to:

a) put it someplace else if keeping it on local datastore is not an option?,

b) what are the consequences to disable it altogether?

c) any other advice on vswp file?

Please share your knowledge and experience.

Thank you.