Remote Virtual Device Support
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29
This disclosure relates to the virtual machine (VM) operating system and remote virtual device support (RVDS). Both local and remote systems must be running VM. The concept disclosed enables VM users logged on to a local system access to virtual devices on a remote system. This is achieved by intercepting all I/Os to a virtual device and re-routing it to the remote system for execution. This is achieved by shipping the I/O request to a virtual machine on the local system, which sends the request via a communications link to a virtual machine on the remote system. Any device on any CPU can be used by any other CPU. RVDS consists of a set of modifications to VM/370 and a program that runs in a local and remote virtual machine connected together via a CTC.