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       scsiadd - Add and remove SCSI devices


       scsiadd {-a|-r} <id>

       scsiadd {-a|-r} <id> <lun>

       scsiadd {-a|-r} <host> <id> <lun>

       scsiadd {-a|-r} <host> <channel> <id> <lun>

       scsiadd [-i maxid] -s <host>

       scsiadd [-i maxid] -s <host> <channel>

       scsiadd -p


       scsiadd  adds and removes devices, scans for new devices, or prints the
       status of the SCSI bus.  The options are:

       -a     add device

       -r     remove device

       -s     scan for new devices

       -p     print SCSI status

       -i     set maximum SCSI ID which is scanned


       scsiadd need the /proc/scsi/scsi file to send its commands to the linux
       kernel.  In 2.6 kernels this file is considered deprecated and you have
       to enable the following kernel option so this file is generated:

       Device Drivers->SCSI device support->legacy /proc/scsi/ support


       scsiadd 3
              add SCSI device with ID 3 on primary host

       scsiadd -r 1
              remove SCSI device with ID 1 from primary host

       scsiadd -s
              scan for new devices on primary device

       scsiadd -a 1 2 13 4
              add SCSI device with ID 13 and LUN 4 on host 1 channel 2


       Dirk Jagdmann <>

       The latest version can be found at

              Howto describing many aspects of the Linux 2.4.0 SCSI system