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package Linux::LVM; |
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22971
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use 5.006; |
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use strict; |
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use warnings; |
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require Exporter; |
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use AutoLoader qw(AUTOLOAD); |
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1514
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our @ISA = qw(Exporter); |
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# Items to export into callers namespace by default. Note: do not export |
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# names by default without a very good reason. Use EXPORT_OK instead. |
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# Do not simply export all your public functions/methods/constants. |
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# This allows declaration use Linux::LVM ':all'; |
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# If you do not need this, moving things directly into @EXPORT or @EXPORT_OK |
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# will save memory. |
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our %EXPORT_TAGS = ( 'all' => [ qw( get_volume_group_list |
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get_volume_group_information |
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get_logical_volume_information |
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get_physical_volume_information |
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get_vg_information |
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get_pv_info |
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get_lv_info |
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) ] ); |
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our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } ); |
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our @EXPORT = qw( get_volume_group_list |
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get_volume_group_information |
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get_logical_volume_information |
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get_physical_volume_information |
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get_vg_information |
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get_pv_info |
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get_lv_info |
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); |
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our $VERSION = '0.17'; |
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our $units; |
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# Preloaded methods go here. |
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# Autoload methods go after =cut, and are processed by the autosplit program. |
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#-----------------------------------------------------------------------# |
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# Subroutine: units # |
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#-----------------------------------------------------------------------# |
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# Description: Set units to be used for pe_size, lv_size, etc. # |
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# legal values are same as lvm --units: # |
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# hbskmgtpeHBSKMGTPE # |
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# (h)uman-readable, (b)ytes, (s)ectors, (k)ilobytes, # |
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# (m)egabytes, (g)igabytes, (t)erabytes, (p)etabytes, # |
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# (e)xabytes. Capitalise to use multiples of 1000 (S.I.) # |
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# instead of 1024. # |
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# Can also specify custom units e.g. --units 3M # |
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#-----------------------------------------------------------------------# |
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# Parameters: None # |
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#-----------------------------------------------------------------------# |
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# Return Values: On success, a array with the volume group names. # |
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#-----------------------------------------------------------------------# |
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sub units { |
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0
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shift; |
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$units = shift() if @_; |
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return $units; |
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} |
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#-----------------------------------------------------------------------# |
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# Subroutine: get_volume_group_list # |
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#-----------------------------------------------------------------------# |
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# Description: This function will return a sorted list of all of the # |
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# active volume groups on the system. # |
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#-----------------------------------------------------------------------# |
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# Parameters: None # |
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#-----------------------------------------------------------------------# |
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# Return Values: On success, a array with the volume group names. # |
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#-----------------------------------------------------------------------# |
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sub get_volume_group_list() { |
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0
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my %vg = get_vg_information(); |
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0
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return (sort keys(%vg)); |
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} # End of the get_volume_group_list routine. |
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84
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#-----------------------------------------------------------------------# |
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# Subroutine: get_volume_group_information # |
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#-----------------------------------------------------------------------# |
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# Description: This function will return a hash containing all of the # |
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# data about the specified volume group. # |
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#-----------------------------------------------------------------------# |
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# Parameters: A string containing a volume group name. # |
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#-----------------------------------------------------------------------# |
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# Return Values: On success, a hash with the volume group data. # |
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#-----------------------------------------------------------------------# |
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sub get_volume_group_information($) { |
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0
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my $volume_group = $_[0]; |
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my %vg_info; |
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my %vg = get_vg_information(); |
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0
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foreach(sort keys %{$vg{$volume_group}}) { |
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100
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if ( $_ eq "pvols" ) { next; } |
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0
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elsif( $_ eq "lvols" ) { next; } |
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else { |
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$vg_info{$_} = $vg{$volume_group}->{$_}; |
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} |
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} |
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0
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return %vg_info; |
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} # End of the get_volume_group_information routine. |
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109
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110
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#-----------------------------------------------------------------------# |
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# Subroutine: get_volume_group_information # |
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#-----------------------------------------------------------------------# |
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# Description: This function will return a hash containing all of the # |
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# data about the specified volume group. # |
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#-----------------------------------------------------------------------# |
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# Parameters: A string containing a volume group name. # |
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#-----------------------------------------------------------------------# |
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# Return Values: On success, a hash with the volume group data. # |
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#-----------------------------------------------------------------------# |
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sub get_logical_volume_information($) { |
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0
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my $volume_group = $_[0]; |
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my %lv_info; |
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my $lvname; |
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0
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my %vg = get_vg_information(); |
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foreach $lvname (sort keys %{$vg{$volume_group}->{lvols}}) { |
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127
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foreach(sort keys %{$vg{$volume_group}->{lvols}->{$lvname}}) { |
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128
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$lv_info{$lvname}->{$_} = $vg{$volume_group}->{lvols}->{$lvname}->{$_}; |
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} |
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} |
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0
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return %lv_info; |
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} # End of the get_logical_volume_information routine. |
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134
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135
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#-----------------------------------------------------------------------# |
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# Subroutine: get_volume_group_information # |
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#-----------------------------------------------------------------------# |
138
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# Description: This function will return a hash containing all of the # |
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# data about the specified volume group. # |
140
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#-----------------------------------------------------------------------# |
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# Parameters: A string containing a volume group name. # |
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#-----------------------------------------------------------------------# |
143
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# Return Values: On success, a hash with the volume group data. # |
144
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#-----------------------------------------------------------------------# |
145
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sub get_physical_volume_information($) { |
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0
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my $volume_group = $_[0]; |
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0
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my %pv_info; |
148
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my $pvname; |
149
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0
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my %vg = get_vg_information(); |
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151
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foreach $pvname (sort keys %{$vg{$volume_group}->{pvols}}) { |
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152
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foreach(sort keys %{$vg{$volume_group}->{pvols}->{$pvname}}) { |
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153
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$pv_info{$pvname}->{$_} = $vg{$volume_group}->{pvols}->{$pvname}->{$_}; |
154
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} |
155
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} |
156
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0
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return %pv_info; |
157
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} # End of the get_physical_volume_information routine. |
158
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159
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160
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#-----------------------------------------------------------------------# |
161
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# Subroutine: get_vg_information # |
162
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#-----------------------------------------------------------------------# |
163
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# Description: This function will return a hash containing all of the # |
164
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# volume group information for the system. # |
165
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#-----------------------------------------------------------------------# |
166
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# Parameters: None # |
167
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#-----------------------------------------------------------------------# |
168
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# Return Values: On success, a hash with all of the vg information. # |
169
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#-----------------------------------------------------------------------# |
170
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sub get_vg_information() { |
171
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0
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0
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my %vghash; |
172
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my $vgn; |
173
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0
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my $lvn; |
174
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0
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my $pvn; |
175
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176
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0
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my @vginfo; |
177
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178
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0
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my $units_arg = ''; |
179
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0
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0
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$units_arg = " --units $units " if ($units); |
180
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0
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0
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if ( -e "/usr/sbin/vgdisplay" ) { |
181
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0
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@vginfo = `/usr/sbin/vgdisplay -v $units_arg`; |
182
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} else { |
183
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0
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0
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if( ! -e "/sbin/vgdisplay" ) { die("LVM utilities not installed in /sbin or /usr/sbin"); } |
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0
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184
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0
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@vginfo = `/sbin/vgdisplay -v $units_arg`; |
185
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} |
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187
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0
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VGINF: foreach(@vginfo) { |
188
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0
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chomp; |
189
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0
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s/^\s+//g; |
190
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0
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s/\s+$//g; |
191
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0
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0
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next VGINF if m/^$/; |
192
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193
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# Parse the volume group name. |
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0
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0
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if( m/VG Name\s+(\S+)/ ) { |
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195
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$vgn = $1; $vghash{$vgn}->{vgname} = $1; |
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0
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196
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next VGINF; } |
197
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198
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# Parse the volume group access. |
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|
|
elsif( m/VG Access\s+(\S+)/ ) { |
200
|
0
|
|
|
|
|
|
$vghash{$vgn}->{access} = $1; |
201
|
0
|
|
|
|
|
|
next VGINF; } |
202
|
|
|
|
|
|
|
|
203
|
|
|
|
|
|
|
# Parse the volume group status. |
204
|
|
|
|
|
|
|
elsif( m/VG Status\s+(.+)/ ) { |
205
|
0
|
|
|
|
|
|
$vghash{$vgn}->{status} = $1; |
206
|
0
|
|
|
|
|
|
next VGINF; } |
207
|
|
|
|
|
|
|
|
208
|
|
|
|
|
|
|
# Parse the volume group number. |
209
|
|
|
|
|
|
|
elsif( m/VG #\s+(\S+)/ ) { |
210
|
0
|
|
|
|
|
|
$vghash{$vgn}->{vg_number} = $1; |
211
|
0
|
|
|
|
|
|
next VGINF; } |
212
|
|
|
|
|
|
|
|
213
|
|
|
|
|
|
|
# Parse the maximum logical volume size and size unit for the volume group. |
214
|
|
|
|
|
|
|
elsif( m/MAX LV Size\s+(\S+) (\S+)/ ) { |
215
|
0
|
|
|
|
|
|
$vghash{$vgn}->{max_lv_size} = $1; |
216
|
0
|
|
|
|
|
|
$vghash{$vgn}->{max_lv_size_unit} = $2; |
217
|
0
|
|
|
|
|
|
next VGINF; } |
218
|
|
|
|
|
|
|
|
219
|
|
|
|
|
|
|
# Parse the maximum number of logical volumes for the volume group. |
220
|
|
|
|
|
|
|
elsif( m/MAX LV\s+(\S+)/ ) { |
221
|
0
|
|
|
|
|
|
$vghash{$vgn}->{max_lv} = $1; |
222
|
0
|
|
|
|
|
|
next VGINF; } |
223
|
|
|
|
|
|
|
|
224
|
|
|
|
|
|
|
# Parse the current number of logical volumes for the volume group. |
225
|
|
|
|
|
|
|
elsif( m/Cur LV\s+(\S+)/ ) { |
226
|
0
|
|
|
|
|
|
$vghash{$vgn}->{cur_lv} = $1; |
227
|
0
|
|
|
|
|
|
next VGINF; } |
228
|
|
|
|
|
|
|
|
229
|
|
|
|
|
|
|
# Parse the number of open logical volumes for the volume group. |
230
|
|
|
|
|
|
|
elsif( m/Open LV\s+(\S+)/ ) { |
231
|
0
|
|
|
|
|
|
$vghash{$vgn}->{open_lv} = $1; |
232
|
0
|
|
|
|
|
|
next VGINF; } |
233
|
|
|
|
|
|
|
|
234
|
|
|
|
|
|
|
# Parse the number of physical volumes accessible to the volume group. |
235
|
|
|
|
|
|
|
elsif( m/Max PV\s+(\S+)/ ) { |
236
|
0
|
|
|
|
|
|
$vghash{$vgn}->{max_pv} = $1; |
237
|
0
|
|
|
|
|
|
next VGINF; } |
238
|
|
|
|
|
|
|
|
239
|
|
|
|
|
|
|
# Parse the current number of physical volumes in the volume group. |
240
|
|
|
|
|
|
|
elsif( m/Cur PV\s+(\S+)/ ) { |
241
|
0
|
|
|
|
|
|
$vghash{$vgn}->{cur_pv} = $1; |
242
|
0
|
|
|
|
|
|
next VGINF; } |
243
|
|
|
|
|
|
|
|
244
|
|
|
|
|
|
|
# Parse the number of active physical volumes in the volume group. |
245
|
|
|
|
|
|
|
elsif( m/Act PV\s+(\S+)/ ) { |
246
|
0
|
|
|
|
|
|
$vghash{$vgn}->{act_pv} = $1; |
247
|
0
|
|
|
|
|
|
next VGINF; } |
248
|
|
|
|
|
|
|
|
249
|
|
|
|
|
|
|
# Parse the size of the volume group. |
250
|
|
|
|
|
|
|
elsif( m/VG Size\s+(\S+) (\S+)/ ) { |
251
|
0
|
|
|
|
|
|
$vghash{$vgn}->{vg_size} = $1; |
252
|
0
|
|
|
|
|
|
$vghash{$vgn}->{vg_size_unit} = $2; |
253
|
0
|
|
|
|
|
|
next VGINF; } |
254
|
|
|
|
|
|
|
|
255
|
|
|
|
|
|
|
# Parse the physical extent size and unit for one extent of volume group. |
256
|
|
|
|
|
|
|
elsif( m/PE Size\s+(\S+) (\S+)/ ) { |
257
|
0
|
|
|
|
|
|
$vghash{$vgn}->{pe_size} = $1; |
258
|
0
|
|
|
|
|
|
$vghash{$vgn}->{pe_size_unit} = $2; |
259
|
0
|
|
|
|
|
|
next VGINF; } |
260
|
|
|
|
|
|
|
|
261
|
|
|
|
|
|
|
# Parse the total number and number of free physical extents from the physical disk. |
262
|
|
|
|
|
|
|
elsif( m/Total PE \/ Free PE\s+(\S+) \/ (\S+)/m ) { |
263
|
0
|
|
|
|
|
|
$vghash{$vgn}->{pvols}->{$pvn}->{total_pe} = $1; |
264
|
0
|
|
|
|
|
|
$vghash{$vgn}->{pvols}->{$pvn}->{free_pe} = $2; |
265
|
0
|
|
|
|
|
|
next VGINF; } |
266
|
|
|
|
|
|
|
|
267
|
|
|
|
|
|
|
# Parse the total number of physical extents from the volume group. |
268
|
|
|
|
|
|
|
elsif( m/Total PE\s+(\S+)/ ) { |
269
|
0
|
|
|
|
|
|
$vghash{$vgn}->{total_pe} = $1; |
270
|
0
|
|
|
|
|
|
next VGINF; } |
271
|
|
|
|
|
|
|
|
272
|
|
|
|
|
|
|
# Parse the number of allocated physical extents from the volume group. |
273
|
|
|
|
|
|
|
elsif( m/Alloc PE \/ Size\s+(\S+) \/ (\S+) (\S+)/ ) { |
274
|
0
|
|
|
|
|
|
$vghash{$vgn}->{alloc_pe} = $1; |
275
|
0
|
|
|
|
|
|
$vghash{$vgn}->{alloc_pe_size} = $2; |
276
|
0
|
|
|
|
|
|
$vghash{$vgn}->{alloc_pe_size_unit} = $3; |
277
|
0
|
|
|
|
|
|
next VGINF; } |
278
|
|
|
|
|
|
|
|
279
|
|
|
|
|
|
|
# Parse the volume group name. |
280
|
|
|
|
|
|
|
elsif( m/Free PE \/ Size\s+(\S+) \/ (\S+) (\S+)/ ) { |
281
|
0
|
|
|
|
|
|
$vghash{$vgn}->{free_pe} = $1; |
282
|
0
|
|
|
|
|
|
$vghash{$vgn}->{free_pe_size} = $2; |
283
|
0
|
|
|
|
|
|
$vghash{$vgn}->{free_pe_size_unit} = $3; |
284
|
0
|
|
|
|
|
|
next VGINF; } |
285
|
|
|
|
|
|
|
|
286
|
|
|
|
|
|
|
# Parse the volume group uuid. |
287
|
|
|
|
|
|
|
elsif( m/VG UUID\s+(\S+)/ ) { |
288
|
0
|
|
|
|
|
|
$vghash{$vgn}->{uuid} = $1; |
289
|
0
|
|
|
|
|
|
next VGINF; } |
290
|
|
|
|
|
|
|
|
291
|
|
|
|
|
|
|
# Parse the logical volume name. |
292
|
|
|
|
|
|
|
elsif( m/LV Name\s+(\S+)/ ) { |
293
|
0
|
|
|
|
|
|
$lvn = $1; |
294
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{name} = $1; |
295
|
0
|
|
|
|
|
|
next VGINF; } |
296
|
|
|
|
|
|
|
|
297
|
|
|
|
|
|
|
# since version 2.02.89 'LV Name' is no longer the full path, 'LV Path' is. |
298
|
|
|
|
|
|
|
# LV Path may be bogus or missing in some cases, such as thin pools. |
299
|
0
|
0
|
|
|
|
|
if( m/LV Path\s+(\S+)/ ) { |
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
300
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{name} = $1; |
301
|
0
|
|
|
|
|
|
next LVINF; } |
302
|
|
|
|
|
|
|
|
303
|
|
|
|
|
|
|
# Parse the logical volume UUID. |
304
|
|
|
|
|
|
|
elsif( m/LV UUID\s+(\S+)/ ) { |
305
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{uuid} = $1; |
306
|
0
|
|
|
|
|
|
next VGINF; } |
307
|
|
|
|
|
|
|
|
308
|
|
|
|
|
|
|
# Parse the logical volume UUID. |
309
|
|
|
|
|
|
|
elsif( m/Segments\s+(\S+)/ ) { |
310
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{segments} = $1; |
311
|
0
|
|
|
|
|
|
next VGINF; } |
312
|
|
|
|
|
|
|
|
313
|
|
|
|
|
|
|
# Parse the logical volume size and unit. |
314
|
|
|
|
|
|
|
elsif( m/LV Size\s+(\S+) (\S+)/ ) { |
315
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{lv_size} = $1; |
316
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{lv_size_unit} = $2; |
317
|
0
|
|
|
|
|
|
next VGINF; } |
318
|
|
|
|
|
|
|
|
319
|
|
|
|
|
|
|
# Parse the logical volume write access. |
320
|
|
|
|
|
|
|
elsif( m/LV Write Access\s+(\S+)/ ) { |
321
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{write_access} = $1; |
322
|
0
|
|
|
|
|
|
next VGINF; } |
323
|
|
|
|
|
|
|
|
324
|
|
|
|
|
|
|
# Parse the logical volume status. |
325
|
|
|
|
|
|
|
elsif( m/LV Status\s+(.+)/ ) { |
326
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{status} = $1; |
327
|
0
|
|
|
|
|
|
next VGINF; } |
328
|
|
|
|
|
|
|
|
329
|
|
|
|
|
|
|
# Parse the number of logical extents in the logical volume. |
330
|
|
|
|
|
|
|
elsif( m/Current LE\s+(\S+)/ ) { |
331
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{cur_le} = $1; |
332
|
0
|
|
|
|
|
|
next VGINF; } |
333
|
|
|
|
|
|
|
|
334
|
|
|
|
|
|
|
# Parse the number of allocated logical extents in the logical volume. |
335
|
|
|
|
|
|
|
elsif( m/Allocated LE\s+(\S+)/ ) { |
336
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{alloc_le} = $1; |
337
|
0
|
|
|
|
|
|
next VGINF; } |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
# Parse the allocation type for the logical volume. |
340
|
|
|
|
|
|
|
elsif( m/Allocation\s+(.+)/ ) { |
341
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{allocation} = $1; |
342
|
0
|
|
|
|
|
|
next VGINF; } |
343
|
|
|
|
|
|
|
|
344
|
|
|
|
|
|
|
# Parse the volume number. |
345
|
|
|
|
|
|
|
elsif( m/LV #\s+(\S+)/ ) { |
346
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{lv_number} = $1; |
347
|
0
|
|
|
|
|
|
next VGINF; } |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
# Parse the number of times the logical volume is open. |
350
|
|
|
|
|
|
|
elsif( m/# open\s+(\S+)/ ) { |
351
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{open_lv} = $1; |
352
|
0
|
|
|
|
|
|
next VGINF; } |
353
|
|
|
|
|
|
|
|
354
|
|
|
|
|
|
|
# Parse the block device of the logical volume. |
355
|
|
|
|
|
|
|
elsif( m/Block device\s+(\S+)/ ) { |
356
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{device} = $1; |
357
|
0
|
|
|
|
|
|
next VGINF; } |
358
|
|
|
|
|
|
|
|
359
|
|
|
|
|
|
|
# Parse the value for the read ahead sectors of the logical volume. |
360
|
|
|
|
|
|
|
elsif( m/Read ahead sectors\s+(\S+)/ ) { |
361
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{read_ahead} = $1; |
362
|
0
|
|
|
|
|
|
next VGINF; } |
363
|
|
|
|
|
|
|
|
364
|
|
|
|
|
|
|
|
365
|
|
|
|
|
|
|
elsif( m/Allocated to snapshot\s+(\S+)%/ ) { |
366
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{'allocated_to_snapshot'} = $1; |
367
|
0
|
|
|
|
|
|
next VGINF; } |
368
|
|
|
|
|
|
|
|
369
|
|
|
|
|
|
|
elsif( m/COW-table size\s+([0-9\.]+)\s+(\S+)/ ) { |
370
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{'cow_table_size'} = $1; |
371
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{'cow_table_unit'} = $2; |
372
|
0
|
|
|
|
|
|
next VGINF; } |
373
|
|
|
|
|
|
|
|
374
|
|
|
|
|
|
|
elsif( m/Mirrored volumes\s+(.+)/ ) { |
375
|
0
|
|
|
|
|
|
$vghash{$vgn}->{lvols}->{$lvn}->{'mirrored_volumes'} = $1; |
376
|
0
|
|
|
|
|
|
next VGINF; } |
377
|
|
|
|
|
|
|
|
378
|
|
|
|
|
|
|
# Parse the physical disk name. |
379
|
|
|
|
|
|
|
elsif( m/PV Name\s+(\S+)/ ) { |
380
|
0
|
|
|
|
|
|
$pvn = $1; |
381
|
0
|
|
|
|
|
|
$vghash{$vgn}->{pvols}->{$pvn}->{device} = $1; |
382
|
0
|
|
|
|
|
|
next VGINF; } |
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
# Parse the status of the physical disk. |
385
|
|
|
|
|
|
|
elsif( m/PV Status\s+(.+)/ ) { |
386
|
0
|
|
|
|
|
|
$vghash{$vgn}->{pvols}->{$pvn}->{status} = $1; |
387
|
0
|
|
|
|
|
|
next VGINF; } |
388
|
|
|
|
|
|
|
|
389
|
|
|
|
|
|
|
# Parse the status of the physical disk. |
390
|
|
|
|
|
|
|
elsif( m/PV UUID\s+(.+)/ ) { |
391
|
0
|
|
|
|
|
|
$vghash{$vgn}->{pvols}->{$pvn}->{uuid} = $1; |
392
|
0
|
|
|
|
|
|
next VGINF; } |
393
|
|
|
|
|
|
|
|
394
|
|
|
|
|
|
|
} |
395
|
0
|
|
|
|
|
|
return %vghash; |
396
|
|
|
|
|
|
|
} # End of the get_vg_information routine. |
397
|
|
|
|
|
|
|
|
398
|
|
|
|
|
|
|
|
399
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
400
|
|
|
|
|
|
|
# Subroutine: get_pv_info # |
401
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
402
|
|
|
|
|
|
|
# Description: This function will return a hash containing all of the # |
403
|
|
|
|
|
|
|
# information about the specified physical volume. # |
404
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
405
|
|
|
|
|
|
|
# Parameters: None # |
406
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
407
|
|
|
|
|
|
|
# Return Values: On success, a hash with all of the pv information. # |
408
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
409
|
|
|
|
|
|
|
sub get_pv_info($) { |
410
|
0
|
|
|
0
|
0
|
|
my $pvname = $_[0]; |
411
|
0
|
|
|
|
|
|
my %pvhash; |
412
|
|
|
|
|
|
|
my @pvinfo; |
413
|
|
|
|
|
|
|
|
414
|
0
|
0
|
|
|
|
|
if( ! -e "$pvname" ) { die("Physical Disk: $pvname does not exist."); } |
|
0
|
|
|
|
|
|
|
415
|
|
|
|
|
|
|
|
416
|
0
|
|
|
|
|
|
my $units_arg = ''; |
417
|
0
|
0
|
|
|
|
|
$units_arg = " --units $units " if ($units); |
418
|
|
|
|
|
|
|
|
419
|
0
|
0
|
|
|
|
|
if ( -e "/usr/sbin/pvdisplay" ) { |
420
|
0
|
|
|
|
|
|
@pvinfo = `/usr/sbin/pvdisplay $units_arg $pvname`; |
421
|
|
|
|
|
|
|
} else { |
422
|
0
|
0
|
|
|
|
|
if( ! -e "/sbin/pvdisplay" ) { die("LVM utilities not installed in /sbin or /usr/sbin"); } |
|
0
|
|
|
|
|
|
|
423
|
0
|
|
|
|
|
|
@pvinfo = `/sbin/pvdisplay $units_arg $pvname`; |
424
|
|
|
|
|
|
|
} |
425
|
|
|
|
|
|
|
|
426
|
|
|
|
|
|
|
|
427
|
0
|
|
|
|
|
|
PVINF: foreach(@pvinfo) { |
428
|
|
|
|
|
|
|
# Get the name of the physical volume. |
429
|
0
|
0
|
|
|
|
|
if( m/PV Name\s+(\S+)/ ) { |
430
|
0
|
|
|
|
|
|
$pvhash{pv_name} = $1; |
431
|
0
|
|
|
|
|
|
next PVINF; } |
432
|
|
|
|
|
|
|
|
433
|
|
|
|
|
|
|
# Get the name of the volume group the physical volume belongs to. |
434
|
0
|
0
|
|
|
|
|
if( m/VG Name\s+(\S+)/ ) { |
435
|
0
|
|
|
|
|
|
$pvhash{vg_name} = $1; |
436
|
0
|
|
|
|
|
|
next PVINF; } |
437
|
|
|
|
|
|
|
|
438
|
|
|
|
|
|
|
# Get the size information of the physical volume. |
439
|
0
|
0
|
|
|
|
|
if( m/PV Size\s+(\S+) (\S+)/ ) { |
440
|
0
|
|
|
|
|
|
$pvhash{size} = $1; |
441
|
0
|
|
|
|
|
|
$pvhash{size_unit} = $2; |
442
|
0
|
|
|
|
|
|
next PVINF; } |
443
|
|
|
|
|
|
|
|
444
|
|
|
|
|
|
|
# Get the physical volume number. |
445
|
0
|
0
|
|
|
|
|
if( m/PV\#\s+(\S+)/ ) { |
446
|
0
|
|
|
|
|
|
$pvhash{pv_number} = $1; |
447
|
0
|
|
|
|
|
|
next PVINF; } |
448
|
|
|
|
|
|
|
|
449
|
|
|
|
|
|
|
# Get the status of the physical volume. |
450
|
0
|
0
|
|
|
|
|
if( m/PV Status\s+(.+)/ ) { |
451
|
0
|
|
|
|
|
|
$pvhash{status} = $1; |
452
|
0
|
|
|
|
|
|
next PVINF; } |
453
|
|
|
|
|
|
|
|
454
|
|
|
|
|
|
|
# Get the allocation status of the physical volume. |
455
|
0
|
0
|
|
|
|
|
if( m/Allocatable\s+(.+)/ ) { |
456
|
0
|
|
|
|
|
|
$pvhash{allocatable} = $1; |
457
|
0
|
|
|
|
|
|
next PVINF; } |
458
|
|
|
|
|
|
|
|
459
|
|
|
|
|
|
|
# Get the number of logical volumes on the physical volume. |
460
|
0
|
0
|
|
|
|
|
if( m/Cur LV\s+(\S+)/ ) { |
461
|
0
|
|
|
|
|
|
$pvhash{num_lvols} = $1; |
462
|
0
|
|
|
|
|
|
next PVINF; } |
463
|
|
|
|
|
|
|
|
464
|
|
|
|
|
|
|
# Get the physical extent size and unit of the physical volume. |
465
|
0
|
0
|
|
|
|
|
if( m/PE Size \((\S+)\)\s+(\S+)/ ) { |
466
|
0
|
|
|
|
|
|
$pvhash{pe_size} = $2; |
467
|
0
|
|
|
|
|
|
$pvhash{pe_size_unit} = $1; |
468
|
0
|
|
|
|
|
|
next PVINF; } |
469
|
|
|
|
|
|
|
|
470
|
|
|
|
|
|
|
# Get the total numver of physical extents on the physical volume. |
471
|
0
|
0
|
|
|
|
|
if( m/Total PE\s+(\S+)/ ) { |
472
|
0
|
|
|
|
|
|
$pvhash{total_pe} = $1; |
473
|
0
|
|
|
|
|
|
next PVINF; } |
474
|
|
|
|
|
|
|
|
475
|
|
|
|
|
|
|
# Get the number of free extents on the physical volume. |
476
|
0
|
0
|
|
|
|
|
if( m/Free PE\s+(\S+)/ ) { |
477
|
0
|
|
|
|
|
|
$pvhash{free_pe} = $1; |
478
|
0
|
|
|
|
|
|
next PVINF; } |
479
|
|
|
|
|
|
|
|
480
|
|
|
|
|
|
|
# Get the number of allocated physical extents on the physical volume. |
481
|
0
|
0
|
|
|
|
|
if( m/Allocated PE\s+(\S+)/ ) { |
482
|
0
|
|
|
|
|
|
$pvhash{alloc_pe} = $1; |
483
|
0
|
|
|
|
|
|
next PVINF; } |
484
|
|
|
|
|
|
|
|
485
|
|
|
|
|
|
|
# Get the UUID of the physical volume. |
486
|
0
|
0
|
|
|
|
|
if( m/PV UUID\s+(\S+)/ ) { |
487
|
0
|
|
|
|
|
|
$pvhash{uuid} = $1; |
488
|
0
|
|
|
|
|
|
next PVINF; } |
489
|
|
|
|
|
|
|
} |
490
|
0
|
|
|
|
|
|
return %pvhash; |
491
|
|
|
|
|
|
|
} # End of the get_pv_info routine. |
492
|
|
|
|
|
|
|
|
493
|
|
|
|
|
|
|
|
494
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
495
|
|
|
|
|
|
|
# Subroutine: get_lv_info # |
496
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
497
|
|
|
|
|
|
|
# Description: This function will return a hash containing all of the # |
498
|
|
|
|
|
|
|
# information about the specified logical volume. # |
499
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
500
|
|
|
|
|
|
|
# Parameters: None # |
501
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
502
|
|
|
|
|
|
|
# Return Values: On success, a hash with all of the lv information. # |
503
|
|
|
|
|
|
|
#-----------------------------------------------------------------------# |
504
|
|
|
|
|
|
|
sub get_lv_info($) { |
505
|
0
|
|
|
0
|
0
|
|
my $lvname = $_[0]; |
506
|
0
|
|
|
|
|
|
my %lvhash; |
507
|
|
|
|
|
|
|
my @lvinfo; |
508
|
|
|
|
|
|
|
|
509
|
0
|
0
|
|
|
|
|
if( ! -e "$lvname" ) { die("Logical Disk: $lvname does not exist."); } |
|
0
|
|
|
|
|
|
|
510
|
|
|
|
|
|
|
|
511
|
0
|
|
|
|
|
|
my $units_arg = ''; |
512
|
0
|
0
|
|
|
|
|
$units_arg = " --units $units " if ($units); |
513
|
0
|
0
|
|
|
|
|
if ( -e "/usr/sbin/vgdisplay" ) { |
514
|
0
|
|
|
|
|
|
@lvinfo = `/usr/sbin/lvdisplay $units_arg $lvname`; |
515
|
|
|
|
|
|
|
} else { |
516
|
0
|
0
|
|
|
|
|
if( ! -e "/sbin/vgdisplay" ) { die("LVM utilities not installed in /sbin or /usr/sbin"); } |
|
0
|
|
|
|
|
|
|
517
|
0
|
|
|
|
|
|
@lvinfo = `/sbin/lvdisplay $units_arg $lvname`; |
518
|
|
|
|
|
|
|
} |
519
|
|
|
|
|
|
|
|
520
|
0
|
|
|
|
|
|
LVINF: foreach(@lvinfo) { |
521
|
|
|
|
|
|
|
|
522
|
|
|
|
|
|
|
# Get the logical volume name. |
523
|
0
|
0
|
|
|
|
|
if( m/LV Name\s+(\S+)/ ) { |
524
|
0
|
|
|
|
|
|
$lvhash{lv_name} = $1; |
525
|
0
|
|
|
|
|
|
next LVINF; } |
526
|
|
|
|
|
|
|
|
527
|
|
|
|
|
|
|
|
528
|
|
|
|
|
|
|
# since version 2.02.89 'LV Name' is no longer the full path, 'LV Path' is. |
529
|
|
|
|
|
|
|
# LV Path may be bogus or missing in some cases, such as thin pools. |
530
|
0
|
0
|
|
|
|
|
if( m/LV Path\s+(\S+)/ ) { |
531
|
0
|
|
|
|
|
|
$lvhash{lv_name} = $1; |
532
|
0
|
|
|
|
|
|
next LVINF; } |
533
|
|
|
|
|
|
|
|
534
|
|
|
|
|
|
|
# Get the volume group name. |
535
|
0
|
0
|
|
|
|
|
if( m/VG Name\s+(\S+)/ ) { |
536
|
0
|
|
|
|
|
|
$lvhash{vg_name} = $1; |
537
|
0
|
|
|
|
|
|
next LVINF; } |
538
|
|
|
|
|
|
|
|
539
|
|
|
|
|
|
|
# Get the volume group name. |
540
|
0
|
0
|
|
|
|
|
if( m/LV UUID\s+(\S+)/ ) { |
541
|
0
|
|
|
|
|
|
$lvhash{uuid} = $1; |
542
|
0
|
|
|
|
|
|
next LVINF; } |
543
|
|
|
|
|
|
|
|
544
|
|
|
|
|
|
|
# Get the logical volume write status. |
545
|
0
|
0
|
|
|
|
|
if( m/LV Write Access\s+(.+)/ ) { |
546
|
0
|
|
|
|
|
|
$lvhash{access} = $1; |
547
|
0
|
|
|
|
|
|
next LVINF; } |
548
|
|
|
|
|
|
|
|
549
|
|
|
|
|
|
|
# Get the logical volume status. |
550
|
0
|
0
|
|
|
|
|
if( m/LV Status\s+(.+)/ ) { |
551
|
0
|
|
|
|
|
|
$lvhash{status} = $1; |
552
|
0
|
|
|
|
|
|
next LVINF; } |
553
|
|
|
|
|
|
|
|
554
|
|
|
|
|
|
|
# Get the logical volume number. |
555
|
0
|
0
|
|
|
|
|
if( m/LV \#\s+(\S+)/ ) { |
556
|
0
|
|
|
|
|
|
$lvhash{lv_number} = $1; |
557
|
0
|
|
|
|
|
|
next LVINF; } |
558
|
|
|
|
|
|
|
|
559
|
|
|
|
|
|
|
# Get the number of opens for the logical volume. |
560
|
0
|
0
|
|
|
|
|
if( m/\# open\s+(\S+)/ ) { |
561
|
0
|
|
|
|
|
|
$lvhash{lv_open} = $1; |
562
|
0
|
|
|
|
|
|
next LVINF; } |
563
|
|
|
|
|
|
|
|
564
|
|
|
|
|
|
|
# Get the logical volume size and size unit. |
565
|
0
|
0
|
|
|
|
|
if( m/LV Size\s+(\S+) (\S+)/ ) { |
566
|
0
|
|
|
|
|
|
$lvhash{size} = $1; |
567
|
0
|
|
|
|
|
|
$lvhash{size_unit} = $2; |
568
|
0
|
|
|
|
|
|
next LVINF; } |
569
|
|
|
|
|
|
|
|
570
|
|
|
|
|
|
|
# Get the number of extents assigned to the logical volume. |
571
|
0
|
0
|
|
|
|
|
if( m/Current LE\s+(\S+)/ ) { |
572
|
0
|
|
|
|
|
|
$lvhash{current_le} = $1; |
573
|
0
|
|
|
|
|
|
next LVINF; } |
574
|
|
|
|
|
|
|
|
575
|
|
|
|
|
|
|
# Get the number of extents allocated to the logical volume. |
576
|
0
|
0
|
|
|
|
|
if( m/Allocated LE\s+(\S+)/ ) { |
577
|
0
|
|
|
|
|
|
$lvhash{alloc_le} = $1; |
578
|
0
|
|
|
|
|
|
next LVINF; } |
579
|
|
|
|
|
|
|
|
580
|
|
|
|
|
|
|
# Get the extent allocation type of the logical volume. |
581
|
0
|
0
|
|
|
|
|
if( m/Allocation\s+(.+)/ ) { |
582
|
0
|
|
|
|
|
|
$lvhash{allocation} = $1; |
583
|
0
|
|
|
|
|
|
next LVINF; } |
584
|
|
|
|
|
|
|
|
585
|
|
|
|
|
|
|
# Get the number of read ahead sectors for the logical volume. |
586
|
0
|
0
|
|
|
|
|
if( m/Read ahead sectors\s+(\S+)/ ) { |
587
|
0
|
|
|
|
|
|
$lvhash{read_ahead} = $1; |
588
|
0
|
|
|
|
|
|
next LVINF; } |
589
|
|
|
|
|
|
|
|
590
|
|
|
|
|
|
|
# Get the block device of the logical volume. |
591
|
0
|
0
|
|
|
|
|
if( m/Block device\s+(\S+)/ ) { |
592
|
0
|
|
|
|
|
|
$lvhash{block_device} = $1; |
593
|
0
|
|
|
|
|
|
next LVINF; } |
594
|
|
|
|
|
|
|
|
595
|
0
|
0
|
|
|
|
|
if( m/Allocated to snapshot\s+(\S+)%/ ) { |
|
|
0
|
|
|
|
|
|
596
|
0
|
|
|
|
|
|
$lvhash{allocated_to_snapshot} = $1; |
597
|
0
|
|
|
|
|
|
next LVINF; } |
598
|
|
|
|
|
|
|
|
599
|
|
|
|
|
|
|
elsif( m/COW-table size\s+([0-9\.]+)\s+(\S+)/ ) { |
600
|
0
|
|
|
|
|
|
$lvhash{'cow_table_size'} = $1; |
601
|
0
|
|
|
|
|
|
$lvhash{'cow_table_unit'} = $2; |
602
|
0
|
|
|
|
|
|
next LVINF; } |
603
|
|
|
|
|
|
|
} |
604
|
0
|
|
|
|
|
|
return %lvhash; |
605
|
|
|
|
|
|
|
} # End of the get_lv_info routine. |
606
|
|
|
|
|
|
|
|
607
|
|
|
|
|
|
|
|
608
|
|
|
|
|
|
|
1; |
609
|
|
|
|
|
|
|
__END__ |