hi,

in your requierments you have:

Primera OS

4.0.0

Primera is currently on 4.2.2. After asking HPE support I got the answer:

I inform you that the 4.0.0 version was never a release customer version. The document refers to all 4.x.x version and you can use it with 4.2.2 version.

So please update to avoid any questions.

This will return wwn's that exist on the storage, regardless of if they are already used in another host or not. Which means when you are trying to add WWNs to an existing host, ansible will complain that "they are already part of another host" when they are not. Add something like this:

hosts = self.client.queryHost(iqns, wwns)['members']
        for host in [x for x in hosts if x.get('name',None)]:
            host_list.append(Host(host))
        return host_list

Or fix the ansible module:
https://github.com/HewlettPackard/hpe3par_ansible_module/blob/master/Modules/hpe3par_host.py#L622-L627

This should become:

host_list = client_obj.queryHost(wwns=wwn_list)
for host_obj in host_list:
    host_name_3par = host_obj.name
    if host_name_3par:
        if host_name == host_name_3par:
            wwn_same_host.append(wwn)
        else:
            wwn_other_host.append(wwn)

the method getStorageSystemInfo returns a dictionary rather than the expected object

{u'clusterNodes': [0, 1, 2, 3], u'onlineNodes': [0, 1, 2, 3], u'name': u'CB2515_2000K_252', u'licenseInfo': {u'WWNBASE': 103353, u'issueTimeSec': 1530167972, u'diskCount': 34, u'licenseState': {u'onlineImport': True, u'storageFederation': True, u'systemReporter': True, u'dynamicOptimization': True, u'qos': True, u'smartSAN': True, u'thinProvisioing': True, u'rmcApplicationSuite': True, u'peerVirtualization': True, u'thinPersistence': True, u'thinProvisioning': True, u'remoteCopy': True, u'adaptiveOptimization': True, u'darEncryption': True, u'virtualLock': True, u'domains': True, u'thinConversion': True, u'fileServices': True, u'virtualCopy': True}, u'issueTime8601': u'2018-06-28T12:09:32+05:30', u'licenses': [{u'name': u'3PAR OS Suite'}, {u'name': u'Adaptive Flash Cache'}, {u'name': u'Adaptive Optimization'}, {u'name': u'Autonomic Rebalance'}, {u'name': u'Cluster Extension'}, {u'name': u'Cluster Extension (102400G)'}, {u'name': u'Compression'}, {u'name': u'Data Encryption'}, {u'name': u'Dynamic Optimization'}, {u'name': u'File Persona (102400G)'}, {u'name': u'File Persona Basic'}, {u'name': u'Management Plug-In for VMware vCenter'}, {u'name': u'Online Import'}, {u'name': u'Peer Motion'}, {u'name': u'Priority Optimization'}, {u'name': u'Recovery Manager Central'}, {u'name': u'Recovery Manager for Exchange'}, {u'name': u'Recovery Manager for Microsoft Hyper-V'}, {u'name': u'Recovery Manager for Oracle'}, {u'name': u'Recovery Manager for SQL'}, {u'name': u'Recovery Manager for VMware vSphere'}, {u'name': u'Remote Copy'}, {u'name': u'Remote Copy (102400G)'}, {u'name': u'RMC Application Suite'}, {u'name': u'Smart SAN'}, {u'name': u'Storage Federation'}, {u'name': u'System Reporter'}, {u'name': u'Thin Conversion'}, {u'name': u'Thin Copy Reclamation'}, {u'name': u'Thin Deduplication'}, {u'name': u'Thin Persistence'}, {u'name': u'Thin Provisioning (102400G)'}, {u'name': u'Virtual Copy'}, {u'name': u'Virtual Copy (102400G)'}, {u'name': u'Virtual Domains'}, {u'name': u'Virtual Lock'}, {u'name': u'VSS Provider for Microsoft Windows'}]}, u'freeCapacityMiB': 21050368.0, u'chunkletSizeMiB': 1024, u'totalCapacityMiB': 38260736.0, u'serialNumber': u'SGH549W49T', u'IPv4Addr': u'15.212.192.252', u'id': 103353, u'parameters': {u'rawSpaceAlertFC': 0, u'hostDIFTemplate': 2, u'thermalShutdown': True, u'remoteCopyHostThrottling': False, u'remoteSyslogSecurityHost': u'0.0.0.0', u'allowR0': True, u'overProvRatioLimit': 0.0, u'allowR5OnNLDrives': False, u'failoverMatchedSet': True, u'upgradeNote': u'', u'disableDedup': False, u'portFailoverEnabled': True, u'allowWrtbackUpgrade': False, u'eventLogNum': 1, u'autoExportAfterReboot': True, u'sessionTimeout': 3600, u'sparingAlgorithm': u'Default', u'eventLogsize': 4194304, u'rawSpaceAlertSSD': 0, u'remoteSyslog': False, u'disableChunkletInitUNMAP': False, u'hostDIF': True, u'allowWrtbackSingleNode': False, u'disableCompr': False, u'complianceOfficerApproval': False, u'allowR5OnFCDrives': True, u'VVRetentionTimeMax': 1209600, u'personaProfile': 1, u'remoteSyslogHost': u'0.0.0.0', u'rawSpaceAlertNL': 0, u'overProvRatioWarning': 0.0}, u'systemVersion': u'3.3.1.457', u'allocatedCapacityMiB': 14423040.0, u'failedCapacityMiB': 0.0, u'readOnlyParameters': {u'maxCompressedVolumeSizeMiB': 16777216, u'maxDedupVolumeSizeMiB': 16777216, u'maxVolumeSizeMiB': 67108864}, u'timeZone': u'Asia/Kolkata', u'IPv6Addr': u'2620:0:a17:e033::12', u'totalNodes': 4, u'masterNode': 1, u'model': u'HPE_3PAR 20800'}

Currently, class GrowthParams and PrivateSpace objects do not get initialized when they are not None. This needs to be corrected in models.py like below.

class GrowthParams(object):

def __init__(self, object_hash):
    if object_hash is None:
        return

Please check the same in other places.