SCSI rescan (Mint 17.3)

[Paul Duncan <paul.d@soi-team.org>]

Hi,

I'm updating wiki documentation for one of our systems, which has an LTO 
tape drive hooked up to an HP P411 SAS RAID controller.

In the good old days of the cciss driver we could issue the following 
command to get the drive recognised if the system had been booted 
without it being switched on:

   echo rescan >/proc/scsi/cciss/6

According to things I have read, the following should work with a modern 
system:

   echo 1 >/sys/class/scsi_host/host0/scan

But all I get is an error message if I try that. Does anyone have an 
idea of where I'm going wrong?

Thanks!

Paul.