try to check is /dev/sda* are links to /dev/s0... devices or not
ls -la /dev/sda*
if u will see something like :
brw-rw---- 1 root root 9 Jun 7 14:41 /dev/scd1 -> /dev/c0t0d1s0
or
lrwxrwxrwx 1 root root 9 Jun 7 14:43 /dev/cdrom -> /dev/scd0

then dell variant of suse linux just reflect "phisical name" of disk devises to "logical"
may be i'm wrong.