}
private VolumeVO persistVolume(Account caller, long ownerId, Long zoneId, String volumeName, String url, String format) {
Transaction txn = Transaction.currentTxn();
txn.start();
VolumeVO volume = new VolumeVO(volumeName, zoneId, -1, -1, -1, new Long(-1), null, null, 0, Volume.Type.DATADISK);
volume.setPoolId(null);
volume.setDataCenterId(zoneId);
volume.setPodId(null);