| SCSICTL(8) | System Manager's Manual | SCSICTL(8) | 
scsictl —
| scsictl | device command [arg [...]] | 
scsictl allows a user or system administrator to issue
  commands to and otherwise control SCSI devices and busses. It is used by
  specifying a device or bus to manipulate, the command to perform, and any
  arguments the command may require. scsictl determines
  if the specified device is an actual device or a SCSI bus automatically, and
  selects the appropriate command set.
For commands which scsictl issues a SCSI
    command to the device directly, any returned sense information will be
    decoded by scsictl and displayed to the standard
    output.
debug
    levelThis option is only supported with kernels compiled with
        SCSIPI_DEBUG.
defects
    [primary] [grown] [block|byte|physical]format
    [blocksize [immediate]]blocksize parameter is provided, the device
      geometry will be modified to use the specified
      blocksize. If this parameter is different form the
      Current or Default Mode Page 3 parameters, the device will update Mode
      Page 3 at the successful completion of the Format. Device geometry may
      change as a result of using a new device
      blocksize. When the optional
      blocksize parameter is specified, the Defect List
      on the drive will revert to the original primary defect list created at
      the time of manufacture if available. The drive will usually recertify
      itself during the Format and add any other defective blocks to the new
      Defect List. Some disks may not support the ability to change the
      blocksize and may enter a Degraded Mode when fed a Format command of this
      type. If this happens the standard recovery for the drive requires issuing
      a correct Format command, i.e. one without the blocksize parameter.
    When the immediate parameter is also
        specified, the disk is instructed to return from the format command
        right away. It continues to format, and every ten seconds
        scsictl issues a TEST UNIT READY command to
        check the associated sense data. This associated sense data has a
        progress indicator which indicates how far the format is progressing.
        Note well that most SCSI disk drives prior to a few years ago do not
        support this option.
identifyreassign
    blkno [blkno [...]]REASSIGN BLOCKS command to the device,
      adding the specified blocks to the grown defect list. This command is only
      supported on direct access devices.releasereserveresetSCIOCRESET ioctl.startstopturgetcachesetcache
    none|r|w|rw [save]flushcachesetspeed
    speedgetreallocsetrealloc
    none|r|w|rw [save]resetSCBUSIORESET ioctl.scan
    target lundetach
    target lunscan command, and may also be wildcarded.scsictl command first appeared in
  NetBSD 1.4.
scsictl command was written by
  Jason R. Thorpe of the Numerical Aerospace Simulation
  Facility, NASA Ames Research Center.
| November 19, 2016 | NetBSD 9.4 |