


LIBSCSI(8)                                             LIBSCSI(8)


NNAAMMEE
       libscsi - SCSI device library

DDEESSCCRRIIPPTTIIOONN
       The  SCSI  device  library  is  currently a private set of
       interfaces that NetWorker uses to  communicate  with  SCSI
       devices.

       There  are  several functions in this library, but the key
       thing to note first is that SCSI devices are named a  par-
       ticular,  platform  independent,  way.  The name of a SCSI
       device is identified essentially as a triple of bus,  tar-
       get,  and  lun  (_b._t._l), where _b is logical scsi bus, _t is
       SCSI target, and _l is SCSI lun on that target.  A  logical
       SCSI bus number should _n_o_t be assumed to be related to any
       specific platform hardware bus number, but instead  should
       be  assumed  to  be  dense positive integer address space,
       that will be  persistent  from  system  reboot  to  system
       reboot  if  the  system hardware configuration remains the
       same. Target and Lun information is, of course, contingent
       upon  the  attached SCSI peripheral devices and their set-
       tings. Some  platforms  may  allow  dynamic  addition  and
       removal  of  SCSI  devices,  but  may  require flushing of
       cached device information (see _l_r_e_s_c_a_n(8)).

PPEERRMMIISSSSIIOONNSS
       Typically, if a device has no system driver, normal  users
       can send commands to these devices. If a device has a sys-
       tem driver (e.g., a tape drive),  then  system  privileges
       are  required in order to send a command to these devices.

SSEEEE AALLSSOO
       _l_r_e_s_c_a_n(8)
























NetWorker rt_1998_4Q.Build.MMaJrFcehra0l8_,0021000                        1


