The cinder.volume.drivers.dell_emc.unity.utils Module

assure_cleanup(*args, **kwds)

Assures the resource is cleaned up. Used as a context.

Parameters:

• enter_func – the function to execute when entering the context.
• exit_func – the function to execute when leaving the context.
• use_enter_return – the flag indicates whether to pass the return value of enter_func in to the exit_func.

build_provider_location(system, lun_type, lun_id, version)

Builds provider_location for volume or snapshot.

Parameters:

• system – Unity serial number
• lun_id – LUN ID in Unity
• lun_type – ‘lun’
• version – driver version

byte_to_gib(byte)

byte_to_mib(byte)

convert_ip_to_portal(ip)

convert_to_itor_tgt_map(zone_mapping)

Function to process data from lookup service.

Parameters:zone_mapping –

mapping is the data from the zone lookup service

with below format

{

<San name>: {

‘initiator_port_wwn_list’: (‘200000051e55a100’, ‘200000051e55a121’..) ‘target_port_wwn_list’: (‘100000051e55a100’, ‘100000051e55a121’..)

}

}

create_lookup_service()

dump_provider_location(location_dict)

extract_fc_uids(connector)

extract_iscsi_uids(connector)

extract_provider_location(provider_location, key)

Extracts value of the specified field from provider_location string.

Parameters:

• provider_location – provider_location string
• key – field name of the value that to be extracted

Returns:

value of the specified field if it exists, otherwise, None is returned

get_backend_qos_specs(volume)

get_extra_spec(volume, spec_key)

get_pool_name(volume)

gib_to_mib(gib)

ignore_exception(func, *args, **kwargs)

is_before_4_1(ver)

lock_if(condition, lock_name)

match_any(full, patterns)

remove_empty(option, value_list)

validate_pool_names(conf_pools, array_pools)