Neil and Steve et al; I appreciate your comments, though I am not the seer that dreamed of this. ...
The intention behind it could be to share tape drives without using a Library Manager, and to add TSM servers without buying more hardware. Our TSM server databases and boot disk are on the SAN. I'm confident the TSM/VM servers would be given the resources they needed. One reasonable concern for building TSM servers on VM's would be that a virtualized server is not as stable as a physical server. Vmotion works most of the time. ESX hosts do crash, and if they lose their HBAs will take all their guests down with them. Best wishes, Keith