Dell PowerEdge 180AS User Manual page 70

can also specify a scan delay between thumbnails (Time Between Servers).
During the delay, you will see the last thumbnail image for all servers in the
scan sequence, though you won't be logged into any servers.
An indicator light at the bottom of each frame displays the status of the
server. The default thumbnail size is based on the number of servers in the
scan list.
Figure 4-9. Viewer - Thumbnail Viewer
Scan mode is a lower priority than an active connection. If you have an
interactive session with a server, that server will be skipped in the scan
sequence and the scan mode will proceed to the next server. No login error
messages will appear. Once the interactive session is closed, then the
thumbnail will be included in the scan sequence again. If another user has an
active connection to a server, the server will be skipped and a red "X" will be
displayed in the indicator light below the frame.
The RCS software can scan connected servers on multiple Remote Console
Switches.
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Using the Viewer