Operation Manual

411 Copyright © Acronis International GmbH, 2002-2015
Real-Time Monitoring
Description: Specifies whether to perform real-time monitoring of registered machines
instead of using a polling mechanism.
Possible values: Enabled or Disabled
Default value: Disabled
By default, Acronis Backup Management Server connects to registered machines to perform
synchronization—in particular, to retrieve data such as backup logs. This approach is known
as a polling mechanism.
If Real Time Monitoring is set to Enabled, the management server instead sends requests to
machines to provide new data whenever it will appear, and then enters a listening mode.
This approach is called real-time monitoring.
Real-time monitoring may reduce network traffic—for example, when centralized backup
tasks run infrequently. However, it is effective only when there are relatively few registered
machines.
Avoid enabling real-time monitoring if the number of registered machines exceeds the
maximum number of simultaneous connections (see Maximum Connections earlier in this
topic).
Second Connection Attempt
Description: Specifies whether to try to connect to a registered machine by using its
last-known IP address after an attempt to connect to it by using its host name has failed.
Possible values: Enabled or Disabled
Default value: Disabled
When connecting to a registered machine, Acronis Backup Management Server first uses the
machine's network name—provided that the machine was added to the management server
by name.
If Second Connection Attempt is set to Enabled and a connection to the machine by using its
network name has failed, the management server performs a second connection attempt,
this time using the latest IP address which was associated with that network name.
We recommend setting Second Connection Attempt to Enabled only in networks which
often experience problems with their DNS servers, and provided that the machines' IP
addresses change infrequently—as in cases of fixed IP addresses or long DHCP lease times.
This setting has no effect on machines that were added to the management server by IP
address.
Offline Period Threshold (in seconds)
Description: Specifies the maximum interval, in seconds, between attempts to connect to a
registered machine which appears to be offline.
Possible values: Any integer number between 1800 and 2147483647
Default value: 1800
Normally, the management server connects to each registered machine with a certain time
interval (see Period and Period-High Priority earlier in this section). When the management
server discovers that the machine is offline, it doubles this interval; it keeps doubling this
interval on each further attempt until reaching the value specified in
Offline Period Threshold. If the machine comes back online, the time interval becomes
normal again.
This approach aims at efficient use of the management server resources and reducing the
network load.