# grep ^Attached /var/log/dmesg
Attached scsi disk sda at scsi2, channel 1, id 0, lun 0
Attached scsi disk sdb at scsi2, channel 1, id 1, lun 0
Attached scsi generic sg0 at scsi2, channel 1, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi2, channel 1, id 1, lun 0,  type 0