[pve-devel] [PATCH storage] rbd: fix #4060 show data-pool usage when configured

Aaron Lauterer a.lauterer at proxmox.com
Tue May 17 14:58:45 CEST 2022

When a data-pool is configured, use it for status infos. The 'data-pool'
config option is used to mark the erasure coded pool while the 'pool'
will be the replicated pool holding meta data such as the omap.

This means, the 'pool' will only use a small amount of space and people
are interested how much they can store in the erasure coded pool anyway.

Signed-off-by: Aaron Lauterer <a.lauterer at proxmox.com>
I decided to check for the IMO more likely case first and check against
a configured data-pool. Afterwards check if we actually need to set the
default pool name in case the pool property is omitted in the storage

 PVE/Storage/RBDPlugin.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/PVE/Storage/RBDPlugin.pm b/PVE/Storage/RBDPlugin.pm
index fb48c3f..da28e8a 100644
--- a/PVE/Storage/RBDPlugin.pm
+++ b/PVE/Storage/RBDPlugin.pm
@@ -630,7 +630,8 @@ sub status {
     my $rados = $librados_connect->($scfg, $storeid);
     my $df = $rados->mon_command({ prefix => 'df', format => 'json' });
-    my $pool =  $scfg->{pool} ? $scfg->{pool} : 'rbd';
+    my $pool = $scfg->{'data-pool'} ? $scfg->{'data-pool'} : $scfg->{pool};
+    $pool = 'rbd' if !$pool;
     my ($d) = grep { $_->{name} eq $pool } @{$df->{pools}};

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