diff options
Diffstat (limited to 'perl-install/fs')
| -rw-r--r-- | perl-install/fs/dmraid.pm | 120 |
1 files changed, 110 insertions, 10 deletions
diff --git a/perl-install/fs/dmraid.pm b/perl-install/fs/dmraid.pm index 6916ab324..30427c0a7 100644 --- a/perl-install/fs/dmraid.pm +++ b/perl-install/fs/dmraid.pm @@ -20,11 +20,17 @@ sub init() { eval { modules::load('dm-mirror') }; devices::init_device_mapper(); if ($::isInstall) { - run_program::run('dmraid', '-ay'); + call_dmraid('-ay'); } 1; } +#- call_dmraid is overloaded when debugging, see the end of this file +sub call_dmraid { + my ($option) = @_; + run_program::get_stdout('dmraid', $option); +} + sub check { my ($in) = @_; @@ -33,26 +39,120 @@ sub check { 1; } -sub pvs_and_vgs() { +sub _raid_devices_raw() { map { - my @l = split(':'); - { pv => $l[0], format => $l[1], vg => $l[2], level => $l[3], status => $l[4] }; - } run_program::get_stdout('dmraid', '-rcc'); + chomp; + my %l; @l{qw(pv format vg level status size)} = split(':'); + \%l; + } call_dmraid('-ccr'); +} + +sub _raid_devices() { + my @l = _raid_devices_raw(); + my %vg2pv; push @{$vg2pv{$_->{vg}}}, delete $_->{pv} foreach @l; + map { + delete $_->{size}; #- now irrelevant + $_->{disks} = $vg2pv{$_->{vg}}; + $_; + } uniq_ { $_->{vg} } @l; +} + +sub _sets_raw() { + map { + chomp; + my %l; @l{qw(name size stride level status subsets devs spares)} = split(':'); + \%l; + } call_dmraid('-ccs'); +} + +sub _sets() { + my @sets = _sets_raw(); + my @raid_devices = _raid_devices(); + foreach (@sets) { + my $name = $_->{name}; + my @l = grep { begins_with($name, $_->{vg}) } @raid_devices; + if (@l) { + log::l("ERROR: multiple match for set $name: " . join(' ', map { $_->{vg} } @l)) if @l > 1; + my ($raid) = @l; + add2hash($_, $raid); + } else { + log::l("ERROR: no matching raid devices for set $name"); + } + } + @sets; } sub vgs() { - my @l = pvs_and_vgs(); - my %vg2pv; push @{$vg2pv{$_->{vg}}}, $_->{pv} foreach @l; map { - my $dev = "mapper/$_->{vg}"; + my $dev = "mapper/$_->{name}"; my $vg = fs::wild_device::to_subpart("/dev/$dev"); - add2hash($vg, { media_type => 'hd', prefix => $dev, bus => "dm_$_->{format}", disks => $vg2pv{$_->{vg}} }); + add2hash($vg, { media_type => 'hd', prefix => $dev, bus => "dm_$_->{format}", disks => $_->{disks} }); #- device should exist, created by dmraid(8) using libdevmapper #- if it doesn't, we suppose it's not in use if_(-e "/dev/$dev", $vg); - } grep { $_->{status} eq 'ok' } uniq_ { $_->{vg} } @l; + } grep { $_->{status} eq 'ok' } _sets(); +} + +if ($ENV{DRAKX_DEBUG_DMRAID}) { + eval(<<'EOF'); + my %debug_data = ( + + isw => { + + # dmraid -s #################### + # *** Group superset isw_ffafgbdhi + # --> Active Subset + # name : isw_ffafgbdhi_toto + # size : 234441216 + # stride : 256 + # type : mirror + # status : ok + # subsets: 0 + # devs : 2 + # spares : 0 + + '-ccs' => "isw_ffafgbdhi_toto:234441216:256:mirror:ok:0:2:0\n", + + # dmraid -r #################### + #/dev/sda: isw, "isw_ffafgbdhi", GROUP, ok, 488397166 sectors, data@ 0 + #/dev/sdb: isw, "isw_ffafgbdhi", GROUP, ok, 234441646 sectors, data@ 0 + + '-ccr' => "/dev/sda:isw:isw_ffafgbdhi:GROUP:ok:488397166:0\n" . + "/dev/sdb:isw:isw_ffafgbdhi:GROUP:ok:234441646:0\n", + }, + + pdc => { + # dmraid -s #################### + # *** Active Set + # name : pdc_bcefbiigfg + # size : 80043200 + # stride : 128 + # type : mirror + # status : ok + # subsets: 0 + # devs : 2 + # spares : 0 + + '-ccs' => "pdc_bcefbiigfg:80043200:128:mirror:ok:0:2:0\n", + + # dmraid -r #################### + # /dev/sda: pdc, "pdc_bcefbiigfg", mirror, ok, 80043200 sectors, data@ 0 + # /dev/sdb: pdc, "pdc_bcefbiigfg", mirror, ok, 80043200 sectors, data@ 0 + + '-ccr' => "/dev/sda:pdc:pdc_bcefbiigfg:mirror:ok:80043200:0\n" . + "/dev/sdb:pdc:pdc_bcefbiigfg:mirror:ok:80043200:0\n", + }, + + ); + + *call_dmraid = sub { + my ($option) = @_; + my $s = $debug_data{$ENV{DRAKX_DEBUG_DMRAID}}{$option} or return; + split("\n", $s); + }; +EOF } 1; |