don't know why it created 2 root partitions, but it's mounting the second one as /data1 because it's listed in your /etc/fstab as /data1. i found suse will create mounts for any linux partition it finds which isn't listed specifically in your fstab, as /data1, /data2, etc...more than likely, the partition probably isn't formatted, so right now it's just wasted space on your hd...i don't know how to recover it to use with your system, but i'm sure someone here does