Situation:
You need to know what an .sv2i file is.

Solution:
The .sv2i file is a system restore file that contains information about your system. Using the Recovery Environment (PQRE), an entire computer containing more than one drive can be restored. This type of restore uses the system index file (.sV2i) to reduce the amount of time needed to restore the drives.

Each time a backup image is created, a system index file is saved along with it.