Backup And Restore; Restore Process - Tyco Software House iSTAR eX Installation Manual

Backup and Restore

Backup and Restore
State and Configuration Backups

Restore Process

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Heartbeat LED
The heartbeat LED is connected to a port line of the micro controller and indicates that the
firmware is running.
Standby Battery
iSTAR eX supports the use of a 12 VDC, 17.2 Ah minimum capacity standby battery.
Battery Operating and Charging Time
The battery will keep a typical system operational for a minimum of 4 hours, and the battery
will be fully recharged in 24 hours or less.
iSTAR eX backup is similar to the iSTAR Classic backup. iSTAR eX writes backup data from
RAM to the Compact Flash card. During restoration, iSTAR eX writes the data from the
Compact Flash card to RAM.
iSTAR eX maintains the last two backups of the data. Each backup stores its write time. When
iSTAR eX does perform a backup, it overwrites the older backup. This means, for example,
that if the backup is interrupted by the reset switch, the previous backup is still available.
When iSTAR eX performs a restoration, it restores from the newer backup.
There are two types of backups: state and configuration.
State - A state backup saves all state and configuration data, including all manual actions,
keypad commands, antipassback information, and activity reports.
When a state backup is restored, the state of the system is the same as when the backup is
done, with the exception of states dependent on the physical world, such as input states,
time specs, and expired manual actions.
Configuration - A configuration backup saves only configuration data. State data is not
saved. When a configuration backup is restored, the default state of the system is used.
The state at the time of the backup is lost. Event triggered backup does a configuration
backup.
After booting, iSTAR eX checks the state of its Real Time Clock. If the RTC has been reset,
iSTAR eX assumes that it does not know what time it is and will not restore any data.
Assuming the Real Time Clock has not been reset, iSTAR eX selects the backup and restores
that data from Compact Flash to RAM.