Script to Rescan HBA and iSCSI Adapters

Information

Title: 

Script to Rescan HBA and iSCSI Adapters

Author(s): 

Xtravirt (Paul Davey)

Target Audience: 

Technical - Novice

First Published: 

1 April 2008

Products: 

VMware ESX, Perl

UID: 

XD10067

A script to rescan HBA and iSCSI adapters in an ESX host

1.0 Overview

Here's a useful script to rescan ESX host LUN's or iSCSI targets that you could schedule as needed.

#!/usr/bin/perl -w
#Filename: rescan-hbas.pl
#No warranty is provided with this script

use strict;
my @hbas = `/usr/sbin/esxcfg-info \| grep vmkernel -i \| grep hba \| awk -F\. \{\'print \$29\'\}`;
print "The following HBAs were detected on this system:\n";
print "\t@hbas";
foreach my $hba (@hbas) {
system("/usr/sbin/esxcfg-rescan $hba");
}
print "Checking to see if SW iSCSI is in use....";
my $iscsi = `/usr/sbin/esxcfg-swiscsi -q`;
chomp ($iscsi);
print "$iscsi\n";
if ($iscsi eq "Software iSCSI is enabled") {
system("/usr/sbin/esxcfg-swiscsi -s")
}

References

References: 

1. Nil

Links: 

1. Nil