Hi Resnik066, It is odd that you can't retrieve the details on the storage pool.  There are a couple of things that we can try to help identify what the issue is here. 1. Perhaps start with trying to retrieve the details by using the pool_name instead of pool_id 2. You could try the following Python code and use the SDK directly to see if that is able to retireve the information when using the pool id
I already installed the unity module, I am able to run  "dellemc_unity_gatherfacts"  I got (pool_1) TASK [debug] **************************************************************************************************************************************************************************************************************************************************************ok: [localhost] => {     "Pool_List": [        "pool_1"    ]} however when I try to get more information with "dellemc_unity_storagepool" spefifiying the pool id (pool_1) I am getting this error: TASK [Get Storage pool details using pool_id] *******************************************************************************************************************************fatal: [localhost]: FAILED! => {"changed": false, "msg": "Storage pool not found - Creation of storage pool is not allowed through Ansible module"}    
dellemc_unity_storagepool module not working with pool_id