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fix #1816: rbd: add support for erasure coded ec pools

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The first step is to allocate rbd images correctly.

The metadata objects still need to be stored in a replicated pool, but
by providing the --data-pool parameter on image creation, we can place
the data objects on the erasure coded (EC) pool.

Signed-off-by: Aaron Lauterer <a.lauterer@proxmox.com>
This commit is contained in:
Aaron Lauterer 2022-01-28 12:22:41 +01:00 committed by Thomas Lamprecht
parent 05b07a67f5
commit ef2afce74a
1 changed files with 13 additions and 10 deletions
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23
PVE/Storage/RBDPlugin.pm
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@ -289,6 +289,10 @@ sub properties {
description => "Pool.",
type => 'string',
},
'data-pool' => {
description => "Data Pool (for erasure coding only)",
type => 'string',
},
namespace => {
description => "RBD Namespace.",
type => 'string',
@ -318,6 +322,7 @@ sub options {
disable => { optional => 1 },
monhost => { optional => 1},
pool => { optional => 1 },
'data-pool' => { optional => 1 },
namespace => { optional => 1 },
username => { optional => 1 },
content => { optional => 1 },
@ -492,15 +497,10 @@ sub clone_image {
my $newvol = "$basename/$name";
$newvol = $name if length($snapname);
my $cmd = $rbd_cmd->(
$scfg,
$storeid,
'clone',
get_rbd_path($scfg, $basename),
'--snap',
$snap,
get_rbd_path($scfg, $name),
);
my @options = ('clone', get_rbd_path($scfg, $basename), '--snap', $snap);
push @options, ('--data-pool', $scfg->{'data-pool'}) if $scfg->{'data-pool'};
push @options, get_rbd_path($scfg, $name);
my $cmd = $rbd_cmd->($scfg, $storeid, @options);
run_rbd_command($cmd, errmsg => "rbd clone '$basename' error");
@ -516,7 +516,10 @@ sub alloc_image {
$name = $class->find_free_diskname($storeid, $scfg, $vmid) if !$name;
my $cmd = $rbd_cmd->($scfg, $storeid, 'create', '--image-format' , 2, '--size', int(($size+1023)/1024), $name);
my @options = ('create', '--image-format' , 2, '--size', int(($size+1023)/1024));
push @options, ('--data-pool', $scfg->{'data-pool'}) if $scfg->{'data-pool'};
push @options, $name;
my $cmd = $rbd_cmd->($scfg, $storeid, @options);
run_rbd_command($cmd, errmsg => "rbd create '$name' error");
return $name;