I noticed recently several posts discussing utilities or scripts to assist with 
device mapping.

Here's a utility that works on AIX and Linux and lists tape drive WWNs, device 
paths and HBAs:
http://greshamstorage.com/freeware/worldwide-name-mapping-utility

[31]: DRIVE: F0A1BC6000
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt2                91     0x500308c0a1bc6001  0x0                          
     fscsi0          0
/dev/mt54               92     0x500308c0a1bc6001  0x0                          
     fscsi1          1
/dev/rmt2               93     0x500308c0a1bc6001  0x0                          
     fscsi0          0
/dev/rmt37              94     0x500308c0a1bc6001  0x0                          
     fscsi1          1
[32]: DRIVE: 500000013032
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt44               95     0x500104f000755592  0x0                          
     fscsi1          1
/dev/rmt28              96     0x500104f000755592  0x0                          
     fscsi1          1
[33]: DRIVE: 572001000092
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt46               97     0x500104f000b399a1  0x0                          
     fscsi1          1
/dev/rmt29              98     0x500104f000b399a1  0x0                          
     fscsi1          1
[34]: DRIVE: 531001003623
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt47               99     0x500104f000b50a41  0x0                          
     fscsi1          1
/dev/rmt30              100    0x500104f000b50a41  0x0                          
     fscsi1          1
[35]: DRIVE: 479000000138
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt48               101    0x500104f000702a7f  0x0                          
     fscsi1          1
/dev/rmt31              102    0x500104f000702a7f  0x0                          
     fscsi1          1
[36]: DRIVE: 1221688608
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt38               73     0x50060b00002ddcfa  0x24000000000000             
     fscsi1          1
/dev/rmt76              74     0x50060b00002ddcfa  0x24000000000000             
     fscsi0          0
/dev/rmt92              75     0x50060b00002ddcfa  0x24000000000000             
     fscsi1          1
[37]: DRIVE: 1229351247
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt39               76     0x50060b00002ddcfa  0x25000000000000             
     fscsi1          1
/dev/rmt77              77     0x50060b00002ddcfa  0x25000000000000             
     fscsi0          0
/dev/rmt93              78     0x50060b00002ddcfa  0x25000000000000             
     fscsi1          1
[38]: DRIVE: 1228377413
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt40               79     0x50060b00002ddcfa  0x26000000000000             
     fscsi1          1
/dev/rmt78              80     0x50060b00002ddcfa  0x26000000000000             
     fscsi0          0
/dev/rmt94              81     0x50060b00002ddcfa  0x26000000000000             
     fscsi1          1
[39]: DRIVE: 1226554618
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt41               82     0x50060b00002ddcfa  0x27000000000000             
     fscsi1          1
/dev/rmt79              83     0x50060b00002ddcfa  0x27000000000000             
     fscsi0          0
/dev/rmt95              84     0x50060b00002ddcfa  0x27000000000000             
     fscsi1          1
[40]: DRIVE: 1227020230
DEVICE                  list#  wwn                 lun                 
serialnum     hba             hba#
/dev/mt42               85     0x50060b00002ddcfa  0x28000000000000             
     fscsi1          1
/dev/rmt80              86     0x50060b00002ddcfa  0x28000000000000             
     fscsi0          0
/dev/rmt96              87     0x50060b00002ddcfa  0x28000000000000             
     fscsi1          1