What exactly is a supported filesystem?

Ok, so True Image Server 8.0 "Supports FAT16/32, NTFS, Linux Ext2, Ext3, ReiserFS, XFS, JFS". But I know for a fact the program also works with other filesystems such as UFS. In fact the bootable CD even recognizes the partition as FreeBSD when I last used it! So what exactly is the difference between the supported filesystems and any of the other ones you can image off a drive?

 

Hello Cyber Dog,

Thank you for your interest in Acronis True Image Server (http://www.acronis.com/enterprise/products/ATISWin/).

If you create the image of the partition with the known file system Acronis True Image will use this particular file system features and can easily determine what sectors contain data to image. You can create the image of the unknown file system as well but it will be created in sector-by-sector mode which means that all the sectors (including empty ones) will be backed up.

Thank you.
--
Ilya Toytman