/**
* Creates or modifies IP/iSCSI ports
*
* <p>Steps- 1. Get all iSCSI ports of the storage system. 2. If single port is present - a) Check
* if it contains valid IQN as port network Id. b) If it does not contain the valid IQN, then just
* update its port network id. c) If it contains the valid IQN as port network id and that port
* network id does not equal the one received in the response, then create new port. 3. If there
* are more than one ports a) Form a list of port network ids by iterating all storage port
* instances. b) Check if the IQN is present in the list constructed in 3.a. c) If it is not
* present in the list 3.a, then create a new port.
*
* @param iqn
*/
private void performISCSIOperation(String iqn) {
logger.info(
"Start iSCSI Ports create/modify operations," + " for storage system : {} ",
storageSystem.getId());
List<StoragePort> iscsiPorts = getISCSIPorts();
if (iscsiPorts.size() == 1) {
// If there is only a port, check if the networkId is the IQN
// If it is not IQN, then update it with the IQN received in the response.
StoragePort singlePort = iscsiPorts.get(0);
String portNetworkId = singlePort.getPortNetworkId();
if (!StorageProtocol.checkInitiator(Block.iSCSI.name(), null, portNetworkId)) {
modify(singlePort, iqn);
} else {
// It is IQN, check if the port's IQN matches with the IQN received
// If it does not match, just create the new IP port.
if (!portNetworkId.equalsIgnoreCase(iqn)) {
create(iqn, StorageProtocol.Transport.IP.name());
}
}
} else {
List<String> portNetworkIdsList = new ArrayList<String>();
// If there are more than 1 ports, construct a list of portNetworkIds
for (StoragePort port : iscsiPorts) {
portNetworkIdsList.add(port.getPortNetworkId());
}
// Now, check if the IQN in the response is already present in the
// existing portNetworkIds list. If it is not present, then create new IP port.
if (!portNetworkIdsList.contains(iqn)) {
create(iqn, StorageProtocol.Transport.IP.name());
}
}
logger.info(
"End iSCSI Ports create/modify operations," + " for storage system :{}",
storageSystem.getId());
}
/*
* Filters iSCSI ports from all port list
*/
private List<StoragePort> getISCSIPorts() {
return filterPortsByType(StorageProtocol.Transport.IP.name());
}