Querying datastore cluster fails

[pmitoraj]

Hi
I am trying to get the details of the datastore cluster from vcenter. It works perfectly with RbVMomi but somehow PyVmomi does not properly recognize the StoragePod object.
In Ruby example, in datastoreFolder there is StoragePod("group-p52") which is an instance of StoragePod.
In python there is vim.Folder:group-p52 which is an instance of vim.Folder and does not respond to podStorageDrsEntry.
Any ideas?

Equivalent code samples:

RUBY:

irb(main):002:0> require 'rbvmomi'
=> true
irb(main):003:0> require 'pp'
=> false
irb(main):004:0> params = {:host => '*******',
irb(main):005:1*            :insecure => true,
irb(main):006:1*            :user => 'root',
irb(main):007:1*     :rev=>"5.5",
irb(main):008:1*            :password => '*****'}
=> OMITTED FOR BREVITY
irb(main):009:0> client = RbVmomi::VIM.connect(params)
=> OMITTED FOR BREVITY
irb(main):010:0> dc = client.serviceInstance.find_datacenter
=> Datacenter("datacenter-21")
irb(main):011:0> 
irb(main):012:0*   pp dc.datastoreFolder.childEntity
[StoragePod("group-p52"),
 Datastore("datastore-48"),
 Datastore("datastore-50"),
 Datastore("datastore-49"),
 Datastore("datastore-31"),
 Datastore("datastore-38"),
 Datastore("datastore-40"),
 Datastore("datastore-36"),
 Datastore("datastore-32")]
=> OMITTED FOR BREVITY
irb(main):013:0> pp dc.datastoreFolder.childEntity[0].class
StoragePod
=> StoragePod
irb(main):014:0> pp dc.datastoreFolder.childEntity[0].podStorageDrsEntry
PodStorageDrsEntry(
  actionHistory: [],
  drsFault: [],
  dynamicProperty: [],
  recommendation: [],
  storageDrsConfig: StorageDrsConfigInfo(
    dynamicProperty: [],
    podConfig: StorageDrsPodConfigInfo(
      defaultIntraVmAffinity: true,
      defaultVmBehavior: "automated",
      dynamicProperty: [],
      enabled: true,
      ioLoadBalanceConfig: StorageDrsIoLoadBalanceConfig(
        dynamicProperty: [],
        ioLatencyThreshold: 10,
        ioLoadImbalanceThreshold: 5
      ),
      ioLoadBalanceEnabled: true,
      loadBalanceInterval: 480,
      option: [],
      rule: [],
      spaceLoadBalanceConfig: StorageDrsSpaceLoadBalanceConfig(
        dynamicProperty: [],
        minSpaceUtilizationDifference: 5,
        spaceUtilizationThreshold: 60
      )
    ),
    vmConfig: []
  )
)

PYTHON:

>>> from pyVim import connect
>>> 
>>> si = connect.Connect('***',443,'root','***')
>>> datacenter = si.content.rootFolder.childEntity[0]
>>> datacenter.datastoreFolder.childEntity
(ManagedObject) [
   'vim.Folder:group-p52',
   'vim.Datastore:datastore-48',
   'vim.Datastore:datastore-50',
   'vim.Datastore:datastore-49',
   'vim.Datastore:datastore-31',
   'vim.Datastore:datastore-38',
   'vim.Datastore:datastore-40',
   'vim.Datastore:datastore-36',
   'vim.Datastore:datastore-32'
]
>>> datacenter.datastoreFolder.childEntity[0].__class__.__name__
'vim.Folder'
>>> datacenter.datastoreFolder.childEntity[0].podStorageDrsEntry
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'vim.Folder' object has no attribute 'podStorageDrsEntry'

[hartsock]

I'm not sure how client.serviceInstance.find_datacenter works... but I'm suspecting it does some magic at the moment. I will look into this further.

[pmitoraj]

client.serviceInstance.find_datacenter returns the first datacenter from datacenters folder. I use this when I am sure there is only one datacenter.

[parthgala]

I think I figured out the issue. In your connect call, please specify the latest version of your vcenter. Looking at the rbvmomi code, looks like it is 5.5 version. So in your connect call pass namespace='vim25/5.5'. This should unblock you. I will fix the bug in the connect code to use latest version soon.

[hartsock]

How is this coming?

[pmitoraj]

Positive, this did the trick.
No FIX:

>>> si = connect.Connect('***',443,'root','***')
>>> datacenter = si.content.rootFolder.childEntity[0]
>>> datacenter.datastoreFolder.childEntity
(ManagedObject) [
   'vim.Folder:group-p42',
   'vim.Datastore:datastore-35',
   'vim.Datastore:datastore-34',
   'vim.Datastore:datastore-36',
   'vim.Datastore:datastore-32'
]

WITH FIX:

>>> si = connect.Connect('***',443,'root','***',namespace='vim25/5.5')
>>> datacenter = si.content.rootFolder.childEntity[0]
>>> datacenter.datastoreFolder.childEntity
(ManagedObject) [
   'vim.StoragePod:group-p42',
   'vim.Datastore:datastore-35',
   'vim.Datastore:datastore-34',
   'vim.Datastore:datastore-36',
   'vim.Datastore:datastore-32'
]