[lxc-users] Error: The [size] properties cannot be changed for "lvm" storage volumes
Kees Bakker
keesb at ghs.com
Tue Sep 25 14:59:42 UTC 2018
Hey,
In my quest to find out how to change volume sizes I ran into this
error message.
# lxc init ubuntu:bionic testvolsize4
# lxc storage volume set local testvolsize4 size 20GB
Error: not found
# lxc storage volume set local container/testvolsize4 size 20GB
Error: The [size] properties cannot be changed for "lvm" storage volumes
(Only by looking at the source code I figured out that I could
prefix the volume name.)
Hmm, LXD does not like to change the size of an LVM volume if
it is not "custom". Is there a reason for that?
lxd/storage_lvm.go:
func (s *storageLvm) StoragePoolVolumeUpdate(writable *api.StorageVolumePut,
changedConfig []string) error {
logger.Infof(`Updating LVM storage volume "%s"`, s.pool.Name)
changeable := changeableStoragePoolVolumeProperties["lvm"]
unchangeable := []string{}
for _, change := range changedConfig {
if !shared.StringInSlice(change, changeable) {
unchangeable = append(unchangeable, change)
}
}
if len(unchangeable) > 0 {
return updateStoragePoolVolumeError(unchangeable, "lvm")
}
if shared.StringInSlice("size", changedConfig) {
if s.volume.Type != storagePoolVolumeTypeNameCustom {
return updateStoragePoolVolumeError([]string{"size"}, "lvm")
}
--
Kees
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