242 lines
7.6 KiB
Perl
242 lines
7.6 KiB
Perl
#!/usr/bin/env perl
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#******************************************************************************
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# @(#) vgs.pl
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#******************************************************************************
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# @(#) Copyright (C) 2016 by KUDOS BVBA <info@kudos.be>. All rights reserved.
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#
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# This program is a free software; you can redistribute it and/or modify
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# it under the same terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
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#******************************************************************************
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# This script will display HP-UX LVM information in Linux style
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#
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# Based on https://jreypo.wordpress.com/2010/02/16/linux-lvm-commands-in-hp-ux/
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#
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# @(#) HISTORY: see perldoc 'vgs.pl'
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# -----------------------------------------------------------------------------
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# DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
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#******************************************************************************
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#******************************************************************************
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# PRAGMA's & LIBRARIES
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#******************************************************************************
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use strict;
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use warnings;
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use POSIX qw(uname ceil);
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use Getopt::Long;
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use Pod::Usage;
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use Data::Dumper;
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$|++;
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#******************************************************************************
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# DATA structures
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#******************************************************************************
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my ($os, $version, $footer);
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my %options;
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my @vgdisplay;
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my $vg_str_size=15;
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#******************************************************************************
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# MAIN routine
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#******************************************************************************
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# where and what am I?
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die ("ERROR: must be invoked as root\n") if ($<);
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($os, $version) = (uname())[0,2];
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die ("ERROR: only runs on HP-UX v11.31") unless ($os eq 'HP-UX' and $version eq 'B.11.31');
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# process command-line options
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if ( @ARGV > 0 ) {
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Getopt::Long::Configure('prefix_pattern=(--|-|\/)', 'bundling', 'no_ignore_case');
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GetOptions( \%options,
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qw(
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help|h|?
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size|s=s
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vg|g=s
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active|a
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terse|t
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));
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}
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# check options
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if ($options{'help'}) {
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pod2usage(-verbose => 3);
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exit (0);
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};
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unless ($options{'size'}) {
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$options{'size'} = 'GB';
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};
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if ($options{'vg'}) {
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$options{'vg'} =~ s#/dev/##;
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# force --active off
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delete $options{'active'};
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};
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# fetch vgdisplay
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if ($options{'vg'}) {
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@vgdisplay = `/usr/sbin/vgdisplay -F ${options{'vg'}} 2>/dev/null`;
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} else {
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@vgdisplay = `/usr/sbin/vgdisplay -F 2>/dev/null`;
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}
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die "ERROR: could not retrieve VG info for $options{'vg'}" if ($?);
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# find max display size for VG name
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foreach my $vg_entry (@vgdisplay) {
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my @vg_data = split (/:/, $vg_entry);
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my $str_size = 0;
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# loop over VG data
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foreach my $vg_field (@vg_data) {
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$str_size = length ($1) if ($vg_field =~ m%^vg_name=/dev/(.*)%);
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$vg_str_size = $str_size if ($str_size > $vg_str_size);
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}
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}
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# print header
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unless ($options{'terse'}) {
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printf STDOUT ("\n%-${vg_str_size}s %-5s %-5s %-20s %-8s %-8s %-10s %-10s %-10s %-12s\n",
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"VG", "PVs", "LVs", "Status", "Version", "PE Size", "VG Size", "VG Free", "VG Max", "VG Major/Minor");
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}
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# loop over vgdisplay (ASCII sorted)
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foreach my $vg_entry (sort (@vgdisplay)) {
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my ($vg_name, $vg_status, $vg_version, $lsvg, $vg_major, $vg_minor,) = ("","","n/a","","n/a","n/a");
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my ($vg_total_pe, $vg_size_pe, $vg_free_pe, $vg_cur_pvs, $vg_cur_lvs, $vg_max_pe) = (0,0,0,0,0,0);
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my ($vg_size, $vg_free, $vg_max) = (0,0,0);
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my @vg_data = split (/:/, $vg_entry);
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# loop over VG data
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foreach my $vg_field (@vg_data) {
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$vg_name = $1 if ($vg_field =~ m%^vg_name=/dev/(.*)%);
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$vg_status = $1 if ($vg_field =~ m%^vg_status=(.*)%);
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unless ($vg_status eq "deactivated") {
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$vg_total_pe = $1 if ($vg_field =~ m%^total_pe=(.*)%);
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$vg_size_pe = $1 if ($vg_field =~ m%^pe_size=(.*)%);
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$vg_free_pe = $1 if ($vg_field =~ m%^free_pe=(.*)%);
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$vg_cur_pvs = $1 if ($vg_field =~ m%^cur_pv=(.*)%);
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$vg_cur_lvs = $1 if ($vg_field =~ m%^cur_lv=(.*)%);
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$vg_version = $1 if ($vg_field =~ m%^vg_version=(.*)%);
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$vg_max_pe = $1 if ($vg_field =~ m%^vg_max_extents=(.*)%);
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}
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}
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# calculate sizes
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unless ($vg_status eq "deactivated") {
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$vg_size = $vg_total_pe * $vg_size_pe;
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$vg_size /= 1024 unless ($options{'size'} =~ /MB/i);
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$vg_size = ceil ($vg_size);
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$vg_free = $vg_free_pe * $vg_size_pe;
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$vg_free /= 1024 unless ($options{'size'} =~ /MB/i);
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$vg_free = ceil ($vg_free);
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$vg_max = $vg_max_pe * $vg_size_pe;
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$vg_max /= 1024 unless ($options{'size'} =~ /MB/i);
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$vg_max = ceil ($vg_max);
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}
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# get minor number
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$lsvg = `/usr/bin/ls -l /dev/${vg_name}/group 2>/dev/null`;
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unless ($?) {
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$vg_major = (split (/\s+/, $lsvg))[4];
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$vg_minor = (split (/\s+/, $lsvg))[5];
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}
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# report data
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unless ($options{'active'} and ($vg_status eq "deactivated")) {
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printf STDOUT ("%-${vg_str_size}s %-5s %-5s %-20s %-8s %-8d %-10d %-10d %-10d %3s/%-8s\n",
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$vg_name,
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$vg_cur_pvs,
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$vg_cur_lvs,
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$vg_status,
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$vg_version,
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$vg_size_pe,
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$vg_size,
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$vg_free,
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$vg_max,
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$vg_major,
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$vg_minor)
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}
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}
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# footer
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unless ($options{'terse'}) {
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$footer = qq{
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Note 1: 'PE Size' values are expressed in MB
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Note 2: 'VG Size', 'VG Free', 'VG Max' values are expressed in GB by default (see --help)
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Note 3: more detailed information can be obtained by running the pvdisplay(1M), vgdisplay(1M), lvdisplay(1M) commands
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};
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print STDOUT $footer;
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};
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exit (0);
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#******************************************************************************
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# End of SCRIPT
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#******************************************************************************
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__END__
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#******************************************************************************
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# POD
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#******************************************************************************
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# -----------------------------------------------------------------------------
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=head1 NAME
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vgs.pl - Show volume group information in a terse way (Linux style).
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=head1 SYNOPSIS
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vgs.pl [-h|--help]
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[(-g|--vg)=<vg_name>]
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[(-s|--size)=<MB|GB>]
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[(-a|--active)]
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[(-t|--terse)]
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=head1 OPTIONS
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=over 2
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=item -h | --help
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S< >Show the help page.
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=item -a | --active
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S< >Hide non-active VGs. Cannot be used in conjunction with --vg.
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=item -g | --vg
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S< >Display information for a specific volume group.
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=item -s | --size
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S< >Show volume group sizes in MB or GB (default is GB).
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=item -t | --terse
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S< >Do not show header and footer information.
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=head1 AUTHOR
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(c) KUDOS BVBA - Patrick Van der Veken
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=head1 history
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@(#) 2016-04-12: first version [Patrick Van der Veken]
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@(#) 2016-04-27: added 'VG Major/Minor' [Patrick Van der Veken]
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@(#) 2017-12-12: made VG name display size dynamic, added --active, added --terse [Patrick Van der Veken]
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@(#) 2019-02-08: remove /dev/ prefix for VG [Patrick Van der Veken]
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@(#) 2020-03-26: use ceil() to round up to more sensible numbers [Patrick Van der Veken]
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