Copyright © Acronis, Inc., 2000-2010 25
In general cases, states of the protected data will be backed up at 5-minute intervals for the last 24
hours.
Note, that if Acronis Nonstop Backup protects a non-system partition, and no changes have occurred
for 5 minutes since the last backup, the next scheduled backup will be skipped. Acronis Nonstop
Backup will wait for a significant data change and will create a new incremental backup only when
such change has been detected. In this case, the real time interval exceeds 5 minutes.
The older backups will be consolidated in such a way that Acronis True Image Home will keep daily
backups for the last 30 days and weekly backups until all Nonstop Backup data storage space is used.
3.11 Booting from system image tib files
Users of the Enterprise and Ultimate editions of Windows 7 can now test whether they will be able to
boot from the recovered system partition. Acronis True Image Home allows booting from a tib file
containing a system partition image. So if you are able to boot from such backup, you almost certainly
will be able to boot after an actual system recovery from that backup. When you choose a tib file to
boot from, Acronis True Image Home creates a temporary vhd file by converting this tib file, so your
hard disk must have enough free space for storing it. Then the program adds a new item to the
Windows boot loader list. When you select the tib file in the boot loader list, your computer will
actually boot from that temporary vhd file. After testing the bootability of the tib file, you can remove
the file from the boot loader list and delete the temporary vhd file, though you can keep it.
3.12 Acronis Universal Restore
3.12.1 Purpose of Acronis Universal Restore
Universal Restore is part of Acronis Plus Pack which is purchased separately, has its own license, and
is installed from its own setup file. You need to re-create bootable media to make the newly installed
Universal Restore add-on operational in the bootable recovery environment.
A system disk image can be restored easily on the hardware where it was created or to identical
hardware. However, if you change the motherboard or use another processor version — a likely
possibility in case of hardware failure — the recovered system could refuse to boot. An attempt to
transfer the system to a new, much more powerful computer will usually produce the same
unbootable result, because the new hardware is incompatible with the most critical drivers included
in the image.
Using Microsoft System Preparation Tool (Sysprep) does not solve this problem, because Sysprep
permits replacing drivers only for Plug-and-Play devices (sound cards, network adapters, video cards
etc.). As for system Hardware Abstraction Layer (HAL) and mass storage device drivers, they must be
identical on the source and the target computers (see Microsoft Knowledge Base, articles 302577 and
216915).
Acronis Universal Restore technology provides an efficient solution for hardware-independent system
restoration by replacing the crucial Hardware Abstraction Layer (HAL) and mass storage device
drivers.
Acronis Universal Restore is applicable for:
1. Instant recovery of a failed system on different hardware
2. Hardware-independent cloning of operating systems
