use strict;
use warnings;
+use Data::Dumper;
use IO::File;
use PVE::Tools qw(run_command trim);
use PVE::Storage::Plugin;
my ($pvname, $size, $vgname, $uuid) = split(':', $line);
- die "found multiple pvs entries for device '$device'\n"
+ die "found multiple pvs entries for device '$device'\n"
if $pvinfo;
$pvinfo = {
if (my $fh = IO::File->new($dev, "w")) {
my $buf = 0 x 512;
syswrite $fh, $buf;
- $fh->close();
+ $fh->close();
}
}
sub lvm_create_volume_group {
my ($device, $vgname, $shared) = @_;
-
+
my $res = lvm_pv_info($device);
-
+
if ($res->{vgname}) {
return if $res->{vgname} eq $vgname; # already created
die "device '$device' is already used by volume group '$res->{vgname}'\n";
return $vgs;
}
-sub lvm_lvs {
+sub lvm_list_volumes {
my ($vgname) = @_;
my $cmd = ['/sbin/lvs', '--separator', ':', '--noheadings', '--units', 'b',
'--unbuffered', '--nosuffix', '--options',
- 'vg_name,lv_name,lv_size,uuid,tags'];
+ 'vg_name,lv_name,lv_size,lv_attr,pool_lv,data_percent,metadata_percent,snap_percent,uuid,tags'];
push @$cmd, $vgname if $vgname;
$line = trim($line);
- my ($vg, $name, $size, $uuid, $tags) = split(':', $line);
+ my ($vg_name, $lv_name, $lv_size, $lv_attr, $pool_lv, $data_percent, $meta_percent, $snap_percent, $uuid, $tags) = split(':', $line);
+ return if !$vg_name;
+ return if !$lv_name;
- return if $name !~ m/^vm-(\d+)-/;
- my $nid = $1;
+ my $lv_type = substr($lv_attr, 0, 1);
- my $owner;
- foreach my $tag (split (/,/, $tags)) {
- if ($tag =~ m/^pve-vm-(\d+)$/) {
- $owner = $1;
- last;
- }
- }
-
- if ($owner) {
- if ($owner ne $nid) {
- warn "owner mismatch name = $name, owner = $owner\n";
- }
-
- $lvs->{$vg}->{$name} = { format => 'raw', size => $size,
- uuid => $uuid, tags => $tags,
- vmid => $owner };
+ my $d = {
+ lv_size => $lv_size,
+ lv_type => $lv_type,
+ };
+ $d->{pool_lv} = $pool_lv if $pool_lv;
+
+ if ($lv_type eq 't') {
+ $data_percent ||= 0;
+ $meta_percent ||= 0;
+ $snap_percent ||= 0;
+ $d->{used} = int((($data_percent + $meta_percent + $snap_percent) * $lv_size)/100);
}
+ $lvs->{$vg_name}->{$lv_name} = $d;
});
return $lvs;
}
-# Configuration
-
-PVE::JSONSchema::register_format('pve-storage-vgname', \&parse_lvm_name);
-sub parse_lvm_name {
- my ($name, $noerr) = @_;
-
- if ($name !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) {
- return undef if $noerr;
- die "lvm name '$name' contains illegal characters\n";
- }
-
- return $name;
-}
+# Configuration
sub type {
return 'lvm';
sub plugindata {
return {
- content => [ {images => 1}, { images => 1 }],
+ content => [ {images => 1, rootdir => 1}, { images => 1 }],
};
}
description => "Zero-out data when removing LVs.",
type => 'boolean',
},
+ saferemove_throughput => {
+ description => "Wipe throughput (cstream -t parameter value).",
+ type => 'string',
+ },
};
}
shared => { optional => 1 },
disable => { optional => 1 },
saferemove => { optional => 1 },
+ saferemove_throughput => { optional => 1 },
content => { optional => 1 },
base => { fixed => 1, optional => 1 },
};
sub parse_volname {
my ($class, $volname) = @_;
- parse_lvm_name($volname);
+ PVE::Storage::Plugin::parse_lvm_name($volname);
if ($volname =~ m/^(vm-(\d+)-\S+)$/) {
- return ('images', $1, $2);
+ return ('images', $1, $2, undef, undef, undef, 'raw');
}
die "unable to parse lvm volume name '$volname'\n";
}
-sub path {
- my ($class, $scfg, $volname) = @_;
+sub filesystem_path {
+ my ($class, $scfg, $volname, $snapname) = @_;
+
+ die "lvm snapshot is not implemented"if defined($snapname);
my ($vtype, $name, $vmid) = $class->parse_volname($volname);
my $vg = $scfg->{vgname};
-
+
my $path = "/dev/$vg/$name";
return wantarray ? ($path, $vmid, $vtype) : $path;
}
sub clone_image {
- my ($class, $scfg, $storeid, $volname, $vmid) = @_;
+ my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_;
die "can't clone images in lvm storage\n";
}
die "unsupported format '$fmt'" if $fmt ne 'raw';
- die "illegal name '$name' - sould be 'vm-$vmid-*'\n"
+ die "illegal name '$name' - sould be 'vm-$vmid-*'\n"
if $name && $name !~ m/^vm-$vmid-/;
my $vgs = lvm_vgs();
die "not enough free space ($free < $size)\n" if $free < $size;
if (!$name) {
- my $lvs = lvm_lvs($vg);
+ my $lvs = lvm_list_volumes($vg);
for (my $i = 1; $i < 100; $i++) {
my $tn = "vm-$vmid-disk-$i";
my ($class, $storeid, $scfg, $volname, $isBase) = @_;
my $vg = $scfg->{vgname};
-
+
# we need to zero out LVM data for security reasons
# and to allow thin provisioning
my $zero_out_worker = sub {
- print "zero-out data on image $volname\n";
- my $cmd = ['dd', "if=/dev/zero", "of=/dev/$vg/del-$volname", "bs=1M"];
- eval { run_command($cmd, errmsg => "zero out failed"); };
+ print "zero-out data on image $volname (/dev/$vg/del-$volname)\n";
+
+ # wipe throughput up to 10MB/s by default; may be overwritten with saferemove_throughput
+ my $throughput = '-10485760';
+ if ($scfg->{saferemove_throughput}) {
+ $throughput = $scfg->{saferemove_throughput};
+ }
+
+ my $cmd = [
+ '/usr/bin/cstream',
+ '-i', '/dev/zero',
+ '-o', "/dev/$vg/del-$volname",
+ '-T', '10',
+ '-v', '1',
+ '-b', '1048576',
+ '-t', "$throughput"
+ ];
+ eval { run_command($cmd, errmsg => "zero out finished (note: 'No space left on device' is ok here)"); };
warn $@ if $@;
$class->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
my $cmd = ['/sbin/lvremove', '-f', "$vg/del-$volname"];
run_command($cmd, errmsg => "lvremove '$vg/del-$volname' error");
});
- print "successfully removed volume $volname\n";
+ print "successfully removed volume $volname ($vg/del-$volname)\n";
};
+ my $cmd = ['/sbin/lvchange', '-aly', "$vg/$volname"];
+ run_command($cmd, errmsg => "can't activate LV '$vg/$volname' to zero-out its data");
+
if ($scfg->{saferemove}) {
# avoid long running task, so we only rename here
- my $cmd = ['/sbin/lvrename', $vg, $volname, "del-$volname"];
+ $cmd = ['/sbin/lvrename', $vg, $volname, "del-$volname"];
run_command($cmd, errmsg => "lvrename '$vg/$volname' error");
return $zero_out_worker;
} else {
my $tmpvg = $scfg->{vgname};
- my $cmd = ['/sbin/lvremove', '-f', "$tmpvg/$volname"];
+ $cmd = ['/sbin/lvremove', '-f', "$tmpvg/$volname"];
run_command($cmd, errmsg => "lvremove '$tmpvg/$volname' error");
}
my $vgname = $scfg->{vgname};
- $cache->{lvs} = lvm_lvs() if !$cache->{lvs};
+ $cache->{lvs} = lvm_list_volumes() if !$cache->{lvs};
my $res = [];
-
+
if (my $dat = $cache->{lvs}->{$vgname}) {
foreach my $volname (keys %$dat) {
- my $owner = $dat->{$volname}->{vmid};
+ next if $volname !~ m/^vm-(\d+)-/;
+ my $owner = $1;
+
+ my $info = $dat->{$volname};
+
+ next if $info->{lv_type} ne '-';
my $volid = "$storeid:$volname";
my $found = grep { $_ eq $volid } @$vollist;
next if !$found;
} else {
- next if defined ($vmid) && ($owner ne $vmid);
+ next if defined($vmid) && ($owner ne $vmid);
}
- my $info = $dat->{$volname};
- $info->{volid} = $volid;
-
- push @$res, $info;
+ push @$res, {
+ volid => $volid, format => 'raw', size => $info->{lv_size}, vmid => $owner,
+ };
}
}
my $vgname = $scfg->{vgname};
- my $total = 0;
- my $free = 0;
- my $used = 0;
-
- if (my $info = $cache->{vgs}->{$vgname}) {
- return ($info->{size}, $info->{free}, $total - $free, 1);
+ if (my $info = $cache->{vgs}->{$vgname}) {
+ return ($info->{size}, $info->{free}, $info->{size} - $info->{free}, 1);
}
return undef;
# In LVM2, vgscans take place automatically;
# this is just to be sure
- if ($cache->{vgs} && !$cache->{vgscaned} &&
+ if ($cache->{vgs} && !$cache->{vgscaned} &&
!$cache->{vgs}->{$scfg->{vgname}}) {
$cache->{vgscaned} = 1;
my $cmd = ['/sbin/vgscan', '--ignorelockingfailure', '--mknodes'];
}
sub activate_volume {
- my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_;
+ my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_;
+ #fix me lvmchange is not provided on
+ my $path = $class->path($scfg, $volname, $snapname);
- my $path = $class->path($scfg, $volname);
-
- my $lvm_activate_mode = $exclusive ? 'ey' : 'ly';
+ my $lvm_activate_mode = 'ey';
my $cmd = ['/sbin/lvchange', "-a$lvm_activate_mode", $path];
run_command($cmd, errmsg => "can't activate LV '$path'");
}
sub deactivate_volume {
- my ($class, $storeid, $scfg, $volname, $cache) = @_;
+ my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_;
- my $path = $class->path($scfg, $volname);
+ my $path = $class->path($scfg, $volname, $snapname);
return if ! -b $path;
my $cmd = ['/sbin/lvchange', '-aln', $path];
}
sub volume_snapshot {
- my ($class, $scfg, $storeid, $volname, $snap, $running) = @_;
+ my ($class, $scfg, $storeid, $volname, $snap) = @_;
die "lvm snapshot is not implemented";
}
sub volume_has_feature {
my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_;
+ my $features = {
+ copy => { base => 1, current => 1},
+ };
+
+ my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) =
+ $class->parse_volname($volname);
+
+ my $key = undef;
+ if($snapname){
+ $key = 'snap';
+ }else{
+ $key = $isBase ? 'base' : 'current';
+ }
+ return 1 if $features->{$feature}->{$key};
+
return undef;
}
projects / pve-storage.git / blobdiff