Using the new 64-bit Zip compression, Genie Backup Manager compresses backed up data to one file that can reach up to about 18 million terabytes in size ( more precisely, 264 -1 bytes) - provided that this is supported by the file system being used - However, the user might want to split the compressed backup file into multiple smaller chunks, for instance in order to copy them later to removable media, or when the file system, such as FAT 16, does not allow creation of large files etc.
GBM can split the backup set into multiple linked files with sequentially numbered extensions (e.g. .001 .002 .003 etc ...) with the last file in the series assigned the main (.gbp) extension.
From the left navigation menu in the backup wizard select Where to Backup.
Select Local/LAN Location.
Select Enable multi-drive spanning.
Select Use fixed split size, then enter the desired split size value.