exception received when creating vlun

[mirokosa]

When creating vLUN using autoLUN option an error is thrown:

hpe3parclient.exceptions.HTTPConflict: Conflict (HTTP 409) 99 - invalid operation: LUN number and persona capability conflict

This is caused in specific cases:

1. host persona VMware 11 is used
2. LUN IDs 0-255 are used.

Root cause is introduction of PE LUN for host persona VMware 11 (LUN ID). Since HPE didn't provide a fix yet for 3PAR OS, we would like to as for enhancement of 3PARclient code in following way for autoLUN option.

1step.
autoLun = True
lun=0
maxAutoLun=0

if receive error "Conflict (HTTP 409) 99 - invalid operation: LUN number and persona capability conflict" ignore error and continue 2step

2step.
autoLun = True
lun=257
maxAutoLun=0

thanks,
Miro

[wantdrink]

def createVLUN(self, volumeName, lun=None, hostname=None, portPos=None,
               noVcn=None, overrideLowerPriority=None, auto=False):

If auto = True, the info['lun'] will be set as zero, and maxAutoLun will be set as zero, which means no max. The vlun will be created with the lun number between 0 and max.

Current code:

    if auto:
        info['autoLun'] = True
        info['maxAutoLun'] = 0
        info['lun'] = 0

Can we change it to:

    if auto:
        info['autoLun'] = True
        info['maxAutoLun'] = 0
        info['lun'] = 0 if not lun else lun

This way if user call the method as:

createVLUN(volumeName=vv_name, hostname=host, auto=True, lun=257)

The client will create vlun with the lun number start with 257 to max.

And if user call the method as:

createVLUN(volumeName=vv_name, hostname=host, auto=True)

The client will create vlun with the lun number start with 0 to max.