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50 DSR Switch Installer/User Guide
Preemption levels range from 1-4, with 4 being the highest level. For example, a user with a
preemption level of 4 may preempt other level 4 users, as well as those with a level 1, 2 or 3 setting.
To change the default preemption level (administrator only):
1. Click Appliance - Appliance Settings - Ports - OSCAR.
2. Use the drop-down menu to select the new level and click the Save button.
Configuring virtual media
Virtual media session settings
You can determine the behavior of the appliance during a virtual media session using the options
provided in the on-board web interface Appliance Virtual Media Session Settings screen. Virtual
media session settings include session lock, access mode and encryption level.
Table 4.4 describes
the virtual media session settings.
To configure virtual media in the on-board web interface:
1. Click Appliance - Appliance Settings - Sessions - Virtual Media Settings.
Table 4.4: Virtual Media Session Settings
Setting Description
Session Lock:
Virtual Media
locked to KVM
session
The locking option specifies whether a virtual media session is locked to the KVM session on
the target device. When locking is enabled (default) and the KVM session is closed, the virtual
media session will also be closed. When locking is disabled and the KVM session is closed,
the virtual media session will remain active.
Drive
Mappings:
Virtual Media
Access Mode
You may set the access mode for mapped drives to read-only or read-write. When the access
mode is read-only, the user will not be able to write data to the mapped drive on the client
workstation. When the access mode is read-write, the user will be able to read and write data
from/to the mapped drive. If the mapped drive is read-only by design (for example, certain CD/
DVD drives or ISO images), the configured read-write access mode will be ignored. Setting
the read-only mode can be helpful when a read-write drive such as a mass storage device or
a USB removable media is mapped, and you wish to prevent the user from writing data to it.
Encryption
Level
You may configure zero to four encryption levels for virtual media sessions. Any combination
is valid. The choices are: DES, 3DES, 128-bit SSL and AES. The default is no encryption (no
encryption levels selected).