Have a look into the following 2 file: tomcat/webapps/alfresco/WEB-INF/classes/alfresco/subsystems/fileServers/default/file-servers-context.xml tomcat/webapps/alfresco/WEB-INF/classes/alfresco/file-servers.xml
In file-servers.xml: search for "<property name="serverComment and edit the value
In file-servers-context.xml search for "<host name=" and edit the "comment" value
Update: Sorry forgot the file-servers.properties file in the same directory If you change the filesystem.name property from "Alfresco" to "yourName" access / mapping will after restart of the server be \\servernameA\yourName\