Users Guide

216 | Performing Daily Administration in AWMS Dell PowerConnect W AirWave 7.2 | User Guide
Navigation Section of AWMS Failover
The Navigation section displays tabs to all main GUI pages within AWMS Failover. The top bar is a static
navigation bar containing tabs for the main components of AWMS, while the lower bar is context-sensitive and
displays the subtabs for the highlighted tab. Table 124 describes the contents of this page.
Adding Watched AWMS Stations
Navigate to the Home > Watched AMPs page to begin backing up and monitoring AWMS stations. Once an
AWMS installation has been added to the Watched AMP list, the Failover AMP will download the most recent
backup and begin polling. The Failover AMP and the Watched AMP must be on the same version or else the
watched AWMS will be unable to restore properly. If any of the watched AMPs are not on the same version of
AWMS, you will need to upgrade. The Failover AMP will need HTTPS access (port 443) to the watched AMP to
verify that the web page is active and to fetch downloads.
Once the Failover AMP determines that the Watched AMP is not up (based on the user-defined missed poll
threshold) it will restore the data backup of the Watched AMP and begin monitoring the watched AMP APs and
devices. There are many variables that affect how long this will take including how long client historical data is
being retained, but for an AMP with 1,000 APs it might take up to 10 minutes. For an AMP with 2,500 APs, it
might take as long as 20 minutes. The Failover AMP will retain its original IP address.
In summary, the Failover AMP could take over for the Watched AMP in as little as five minutes; it might take up
to an additional 10-20 minutes to unpack the watched AMP data and begin monitoring APs. The most important
factors are the missed poll threshold, which is defined by the user, and the size of the watched AMP backup,
which is affected by the total number of APs and by the amount of data being saved, especially client historical
data.
To restore the Watched AMP, run the backup script from the command line and copy the current data file and
the old Watched AMP configuration file to the Watched AMP. Then run the restore script. More information
about backups and restores can be found in “Backing Up AWMS” on page214.
Table 124 Contents of the Navigation Section of Failover
Main Tab Description Subtabs
Home The Home page provides basic AWMS Failover information including system
name, hostname, IP address, current time, running time, software version, and
watched AWMS information.
 Overview
 User Info
 Watched AMPs
 License
System The System page provides information related to AWMS operation and
administration including overall system status, performance monitoring, and
backups.
 Status
 Triggers
 Alerts
 Event Log
 Backups
 Performance
AMP Setup The Setup page provides all information relating to the configuration of AWMS
itself and its connection to your network.
 General
 Network
 Users
 TACACS+
Table 125 Home > Watched Page Fields and Default Values
Setting Default Description
IP/Hostname None The IP address or Hostname of the watched AWMS.
The Failover AWMS needs HTTPS access to the watched AMPs.
Username None A username with management rights on the watched AWMS.
Password None The password for the username with management rights specified above.