Table of Contents

Exporting disk image files via SRP on Linux

Installing the SRP target software

You need to download and install the Generic SCSI Target Subsystem for Linux (SCST) from http://scst.sourceforge.net/downloads.html. Building and installing this software is outside the scope of this document.

Adding an SRP target image

To add a disk image file as an SRP target, you need to add the following four lines to /etc/scst.conf: 

  [HANDLER vdisk]
  DEVICE srpboot,/path/to/image/file.img,,512
  
  [ASSIGNMENT Default]
  DEVICE srpboot,0

where /path/to/image/file.img is the path to your disk image file.

Reload the SCST configuration: 

  /etc/init.d/scst reload

and check that the SRP target is visible: 

  ibsrpdm && ibsrpdm -c

You should see something like 

  IO Unit Info:
      port LID:        0001
      port GID:        fe800000000000000002c9030001c65b
      change ID:       0100
      max controllers: 0x10
  
      controller[  1]
          GUID:      0002c9030001c65a
          vendor ID: 000002
          device ID: 006732
          IO class : 0100
          ID:        SCST SRP target
          service entries: 1
              service[  0]: 0002c9030001c65a / SRP.T10:0002c9030001c65a
  
  id_ext=0002c9030001c65a,ioc_guid=0002c9030001c65a,
  dgid=fe800000000000000002c9030001c65b,
  pkey=ffff,service_id=0002c9030001c65a

Make a note of the SRP target parameters id_ext, ioc_guid, dgid and service_id. You are now ready to