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nexenta : find_free_diskname

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Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This commit is contained in:
Alexandre Derumier
2013-02-05 12:56:01 +01:00
committed by Dietmar Maurer
parent 1a259abc18
commit 5b29d458f4
1 changed files with 30 additions and 18 deletions
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48
PVE/Storage/NexentaPlugin.pm
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@ -210,6 +210,34 @@ sub path {
return ($path, $vmid, $vtype); return ($path, $vmid, $vtype);
} }
my $find_free_diskname = sub {
my ($storeid, $scfg, $vmid) = @_;
my $name = undef;
my $volumes = nexenta_list_zvol($scfg);
die "unable de get zvol list" if !$volumes;
my $disk_ids = {};
my $dat = $volumes->{$scfg->{pool}};
foreach my $image (keys %$dat) {
my $volname = $dat->{$image}->{name};
if ($volname =~ m/(vm|base)-$vmid-disk-(\d+)/){
$disk_ids->{$2} = 1;
}
}
#fix: can we search in $rbd hash key with a regex to find (vm|base) ?
for (my $i = 1; $i < 100; $i++) {
if (!$disk_ids->{$i}) {
return "vm-$vmid-disk-$i";
}
}
die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"
};
sub create_base { sub create_base {
my ($class, $storeid, $scfg, $volname) = @_; my ($class, $storeid, $scfg, $volname) = @_;
@ -228,25 +256,9 @@ sub alloc_image {
die "unsupported format '$fmt'" if $fmt ne 'raw'; die "unsupported format '$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-/; if $name && $name !~ m/^vm-$vmid-/;
my $nexentapool = $scfg->{'pool'}; $name = &$find_free_diskname($storeid, $scfg, $vmid);
if (!$name) {
my $volumes = nexenta_list_zvol($scfg);
die "unable de get zvol list" if !$volumes;
for (my $i = 1; $i < 100; $i++) {
my $tn = "vm-$vmid-disk-$i";
if (!defined ($volumes->{$nexentapool}->{$tn})) {
$name = $tn;
last;
}
}
}
die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"
if !$name;
nexenta_create_zvol($scfg, $name, $size); nexenta_create_zvol($scfg, $name, $size);
nexenta_create_lu($scfg, $name); nexenta_create_lu($scfg, $name);