@DB @Override public boolean deleteDataStore(DataStore store) { List<StoragePoolHostVO> hostPoolRecords = _storagePoolHostDao.listByPoolId(store.getId()); StoragePool pool = (StoragePool) store; boolean deleteFlag = false; // find the hypervisor where the storage is attached to. HypervisorType hType = null; if (hostPoolRecords.size() > 0) { hType = getHypervisorType(hostPoolRecords.get(0).getHostId()); } // Remove the SR associated with the Xenserver for (StoragePoolHostVO host : hostPoolRecords) { DeleteStoragePoolCommand deleteCmd = new DeleteStoragePoolCommand(pool); final Answer answer = agentMgr.easySend(host.getHostId(), deleteCmd); if (answer != null && answer.getResult()) { deleteFlag = true; // if host is KVM hypervisor then send deleteStoragepoolcmd to all the kvm hosts. if (HypervisorType.KVM != hType) { break; } } else { if (answer != null) { s_logger.debug("Failed to delete storage pool: " + answer.getResult()); } } } if (!deleteFlag) { throw new CloudRuntimeException("Failed to delete storage pool on host"); } return dataStoreHelper.deletePrimaryDataStore(store); }