Awms Failover; Navigation Section Of Awms Failover; Adding Watched Awms Stations - Dell PowerConnect W-Airwave User Manual

AWMS Failover

The failover version of AWMS provides a "many to one" hot backup server. The Failover AWMS polls the
watched AMPs to verify that each is up and running. If the watched AWMS is unreachable for the specified
number of polls, the Failover AWMS will enter failover mode. When AWMS enters failover mode it
automatically restores the most recent saved backup from the watched AWMS and begins polling its APs.

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 sub-menus for the highlighted tab.
Table 131 Contents of the Navigation Section of Failover
Main Tab
Home
System
AMP Setup

Adding Watched AWMS Stations

Navigate to the Home > Watched
AWMS installation has been added to the Watched AWMS list, the Failover AWMS will download the most
recent backup and begin polling. The Failover AWMS and the Watched AWMS must be on the same version or
else the watched AWMS will be unable to restore properly. If any of the watched AWMS are not on the same
version of AWMS you will need to upgrade. The Failover AWMS will need HTTPS access (port 443) to the
watched AWMS to verify that the web page is active and to fetch downloads.
Once the Failover AWMS determines that the Watched AWMS is not up (based on the user-defined missed
poll threshold) it will restore the data backup of the Watched AWMS and begin monitoring the watched
APs/Devices. There are many variables that affect how long this will take, including how long client historical
data is being retained, but for an AWMS with 1000 APs it might take up to 10 minutes. For an
APs it might take as long as 20 minutes. The Failover AWMS will retain its original IP address.
In summary, the Failover AWMS could take over for the Watched AWMS in as little as five minutes; it might
take up to an additional 10-20 minutes to unpack the watched AWMS' 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.
258 | Performing Daily Administration in AWMS
Description
The Home page provides basic AWMS Failover information, including
system name, hostname, IP address, current time, running time, software
version, and watched AWMS information.
The System page provides information related to AWMS operation and
administration (including overall system status, performance monitoring
and backups).
The Setup page provides all information relating to the configuration of
AWMS itself and its connection to your network.
page to begin backing up and monitoring AWMS stations. Once an
AWMS
Table 131 describes the contents of this page.
Dell PowerConnect W AirWave 7.1 | User Guide
Sub-Menus
Overview

Watched

AWMS

License (viewable only by

demo versions)
Status

Event

Log

Backups

Performance

General

Network

Users

TACACS+

AMP
with 2500
AMP