Alternate pathing:

slestsmtst:~ # cat /proc/scsi/IBMchanger
lin_tape version: 1.74.0
lin_tape major number: 251
Attached Changer Devices:
Number  model       SN                HBA             SCSI            FO Path
0       03584L22    0000078A32310403  lpfc            1:0:1:1         NA
1       03584L22    0000078A32310402  lpfc            1:0:3:1         NA
2       03584L22    0000078A32310401  lpfc            1:0:12:1        NA
3       03584L22    0000078A41400401  lpfc            1:0:25:1        NA
4       03584L22    0000078A41400402  lpfc            1:0:28:1        NA
5       03584L22    0000078A32310403  lpfc            3:0:2:1         NA  
6       03584L22    0000078A32310406  lpfc            3:0:6:1         NA
7       03584L22    0000078A32310402  lpfc            3:0:8:1         NA
8       03584L22    0000078A32310401  lpfc            3:0:18:1        NA
9       03584L22    0000078A41400401  lpfc            3:0:28:1        NA
10      03584L22    0000078A41400402  lpfc            3:0:30:1        NA
11      03584L22    0000078A41400405  lpfc            3:0:34:1        NA
slestsmtst:~ #
slestsmtst:~ # /etc/init.d/lin_tape stop
Shutting down lin_tape:
slestsmtst:~ #
slestsmtst:~ # rmmod  lin_tape
slestsmtst:~ #
slestsmtst:~ # cat /etc/modprobe.d/lintape.conf
options lin_tape ibm3592_barcode=8
options lin_tape alternate_pathing=1
slestsmtst:~ #
slestsmtst:~ # depmod
slestsmtst:~ #
slestsmtst:~ # modprobe lin_tape
slestsmtst:~ #
slestsmtst:~ # modprobe lin_tape --allow-unsupported
slestsmtst:~ #
slestsmtst:~ # /etc/init.d/lin_tape start
Starting lin_tape:
slestsmtst:~ #
slestsmtst:~ # cat /proc/scsi/IBMchanger
lin_tape version: 1.74.0
lin_tape major number: 251
Attached Changer Devices:
Number  model       SN                HBA             SCSI            FO Path
0       03584L22    0000078A32310403  lpfc            1:0:1:1         Primary
1       03584L22    0000078A32310402  lpfc            1:0:3:1         Primary
2       03584L22    0000078A32310401  lpfc            1:0:12:1        Primary
3       03584L22    0000078A41400401  lpfc            1:0:25:1        Primary
4       03584L22    0000078A41400402  lpfc            1:0:28:1        Primary
5       03584L22    0000078A32310403  lpfc            3:0:2:1         Alternate
6       03584L22    0000078A32310406  lpfc            3:0:6:1         Primary
7       03584L22    0000078A32310402  lpfc            3:0:8:1         Alternate
8       03584L22    0000078A32310401  lpfc            3:0:18:1        Alternate
9       03584L22    0000078A41400401  lpfc            3:0:28:1        Alternate
10      03584L22    0000078A41400402  lpfc            3:0:30:1        Alternate
11      03584L22    0000078A41400405  lpfc            3:0:34:1        Primary