Acronis Backup for Windows Server Essentials - User Guide - Manual (Page 82)

82 Copyright © Acronis International GmbH, 2002-2014
Event Windows Linux
Time: Daily, Weekly, Monthly
+ +
Time since completion of the last successful backup within the same backup plan
(specify the length of time)
+ +
User logon
(any user, current user, specify the user’s account)
+ -
User logoff*
(any user, current user, specify the user’s account)
*Shutting down is not the same as logging off. The task will not run at a system
shutdown.
+ -
System startup
+ +
System shutdown
+ -
An event in Windows Event Log
(specify the parameters of the event)
+ -
Condition
For backup operations only, you can specify a condition or multiple conditions in addition to the
events. Once any of the events occurs, the scheduler checks the condition and runs the task if the
condition is met. With multiple conditions, all of them must be met simultaneously to enable task
execution. The table below lists the conditions available under Windows and Linux operating
systems.
Condition: run the task only if Windows Linux
User is idle (a screen saver is running or the machine is locked)
+ -
Location's host is available
+ +
The task run time is within the specified time interval
+ +
All users are logged off
+ -
The specified period of time has passed since the completion of the last successful
backup within the same backup plan
+ +
The scheduler behavior, in case the event occurs but the condition (or any of multiple conditions) is
not met is defined by the Task start conditions (p. 127) backup option.
What-ifs

What if an event occurs (and a condition, if any, is met) while the previous task run has not
completed?
The event will be ignored.

What if an event occurs while the scheduler is waiting for the condition required by the
previous event?
The event will be ignored.

What if the condition is not met for a very long time?
If delaying a backup is getting risky, you can force the condition (tell the users to log off) or run
the task manually. To automatically handle this situation, you can set the time interval after
which the task will run regardless of the condition.