The driver status of "tpconfog -l" is DISABLED

[root@dwghdb1 bin]# ./tpconfig -l
Device Robot Drive       Robot                    Drive                Device     Second
Type     Num Index  Type DrNum Status  Comment    Name                 Path       Device Path
robot      0    -    TLD    -       -  -          -                    idc-nbu
  drive    -    0 hcart2    2      UP  -          IBM.ULT3580-TD5.001  /dev/nst5
  drive    -    1 hcart2    6  DISABL  -          IBM.ULT3580-TD5.005  /dev/nst0
  drive    -    3 hcart2    5      UP  -          IBM.ULT3580-TD5.004  /dev/nst3
  drive    -    5 hcart2    7  DISABL  -          IBM.ULT3580-TD5.006  /dev/nst1
  drive    -    6 hcart2    8  DISABL  -          IBM.ULT3580-TD5.007  /dev/nst2

what is the DISABLED status stands for?
How can I UP this driver?

I have tried the following steps end with failed:

[root@dwghdb1 bin]# ./vmoprcmd  -up 1
Invalid Drive Number
[root@dwghdb1 bin]# ./vmoprcmd  -down 1
Invalid Drive Number
[root@dwghdb1 bin]# ./vmoprcmd  -upbyname IBM.ULT3580-TD5.005
Unknown drive name
[root@dwghdb1 bin]# ./vmoprcmd -downbyname IBM.ULT3580-TD5.005
Unknown drive name
[root@dwghdb1 bin]# ./tpconfig -l
Device Robot Drive       Robot                    Drive                Device     Second
Type     Num Index  Type DrNum Status  Comment    Name                 Path       Device Path
robot      0    -    TLD    -       -  -          -                    idc-nbu
  drive    -    0 hcart2    2      UP  -          IBM.ULT3580-TD5.001  /dev/nst5
  drive    -    1 hcart2    6  DISABL  -          IBM.ULT3580-TD5.005  /dev/nst0
  drive    -    3 hcart2    5      UP  -          IBM.ULT3580-TD5.004  /dev/nst3
  drive    -    5 hcart2    7  DISABL  -          IBM.ULT3580-TD5.006  /dev/nst1
  drive    -    6 hcart2    8  DISABL  -          IBM.ULT3580-TD5.007  /dev/nst2