Virtual Media Sharing And Preemption Considerations; Virtual Media Window - HP 262586-B21 - IP Console Switch 3x1x16 KVM User Manual

the BIOS of your target server or operating system does not support such devices, you must perform one
of the following actions:
•
Purchase a PS2 interface adapter with Virtual Media and map a single, non-composite Virtual Media
device.
•
Disable the USB 2.0 function of the USB 2.0 interface adapter with Virtual Media from the console
switch local OSD, allowing the interface adapter to operate in 1.1 mode. For more information
about this option, see the HP IP Console Switch with Virtual Media User Guide.
AMD Opteron™-based HP ProLiant servers and Red Hat Enterprise Linux 4 (before Update 5) do not
currently support USB composite USB 2.0 devices. However, the target server BIOS for Intel®-based HP
ProLiant G4 and later servers support composite USB 2.0 devices. If the server's BIOS supports USB 2.0
composite devices, but the operating system installation program does not, a failure occurs when the
keyboard and mouse control is switched from the BIOS to the installation program.
HP recommends using the PS2 interface adapter with Virtual Media for AMD Opteron™-based HP
ProLiant servers and Red Hat Enterprise Linux 4 (before Update 5), as well as older and third-party
servers.

Virtual Media sharing and preemption considerations

The KVM session and Virtual Media sessions are separate. Therefore, there are many options for sharing,
reserving, or preempting sessions. The HP IP Console Viewer has the flexibility to accommodate the
system needs.
For example, the console switch and Virtual Media sessions can be locked together. In this mode, when a
console switch session is disconnected, the associated Virtual Media session is also disconnected. If the
sessions are not locked together, the console switch session can be closed, but the Virtual Media session
remains active.
When a server has an active Virtual Media session without an associated active console switch session,
one of the two situations can occur:
•
The original user (User A) can reconnect.
-or-
•
A different user (User B) can connect to that channel.
You can set an option in the Virtual Media window (Reserved) that only allows User A access to that
channel with a console switch session.
If User B has access to that session (the Reserved option is not enabled), User B could control the media
that is being used in the Virtual Media session. In some environments, this configuration might not be
desirable.
By using the Reserved option in a cascaded environment, only User A could access the lower console
switch, and the console switch channel between the upper console switch and lower console switch would
be strictly reserved for User A.
Preemption levels offer additional flexibility of combinations.

Virtual Media window

The Virtual Media window is a program that manages the mapping and unmapping of Virtual Media.
The window displays all the physical drives on the client's workstation that can be mapped as virtual
Managing remote servers through the Video Session Viewer 93