This is the hardest step. Search each disk for a filesystem signature (like NTFS at sector 0 of the volume). The disk containing the start of a partition is likely Disk 1 in the JBOD sequence.
Select the option for (most advanced tools group JBOD under RAID recovery utilities). jbod repair toolsexe
It handles diverse file systems (NTFS, REFS, exFAT, Ext4) simultaneously across the array. 4. R-Studio Network Edition This is the hardest step