EMC Legato NetWorker Commands Reference

writebuf

SYNOPSIS

       writebuf  -a  b.t.l [ -m mode ] [ -b buffer-id ] [ -o buffer-offset ] [
       -p plist-len ] -f filename

DESCRIPTION

       The writebuf program will send a WRITE BUFFER command to the named SCSI
       device.   It  is  typically  used  to  download  new  microcode to SCSI
       devices.

       The required -a argument must be used to select a specific ordinal SCSI
       address (see libscsi(1)).

       The  required argument set of -f filename must refer to a file contain-
       ing the data to write.

OPTIONS

       -b buffer-id Specifies the identity of the buffer to be written.

       -o buffer-offset Specifies the offset from the beginning of the  buffer
       to begin writing.

       -p plist-len Specifies the parameter list length.

SEE ALSO

       The  ANSI  SCSI-2  specification  for  more in-depth explanation of the
       arguments.

BUGS AND WARNINGS

       Some microcode files are large.  Be sure that the platform that you run
       this command on, and the host adapter that attaches the device to which
       you are  directing  this  command,  can  support  sending  all  of  the
       microcode  in  one  command.   Loading  a fraction of the microcode and
       failing can be disastrous and can damage a device requiring  it  to  be
       sent  back to the factory. Use the lusbinfo(1) command and find the I/O
       transfer limit size for these constraining  factors.  Exercise  caution
       using this command.

SEE ALSO

       libuscsi(1)
       lusbinfo(1)

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