When running in Windows Acronis product supports all RAID arrays Windows has drivers for. The standalone version of Acronis products supports most of RAID arrays.
For an article specific to Acronis True Image Home see Acronis True Image Home: RAID Support.
Under Windows Acronis product supports all RAID arrays Windows has drivers for;
The standalone version of Acronis product uses embedded Linux drivers for RAID arrays. There is a probability that Linux drivers for a specific RAID array have not been included yet. In this case you should try to use a special plug-in for the BartPE instead of the standalone version. This plug-in allows you to use Windows drivers for the RAID array when running Acronis product from BartPE bootable CD. You may also contact Acronis Support and report that the standalone version does not recognize your RAID array.
For information on BartPE, WinPE and Linux-based Acronis Bootable Media see Acronis Bootable Media Types.