Delete AVM file pool provided to eNAS

Hello, could someone please help with file pool deletion and clean-up?

We have a VMAX with eNAS.

On the eNAS there is a file pool provided from VMAX. The pool is not used (not in use), i.e. it doesn't have fs, vmd or anything. It consists of 1 EFD volume.

The pool was created via Provision storage for file wizard (file dashboard of vmax unisphere). The pool info:

id = 30
name = fs_data_file_1
description = Mapped Storage Group fs_data_file_1 on ###########
acl = 0
in_use = False
clients =
members =
storage_system(s) = ###########
default_slice_flag = False
is_user_defined = False
thin = True
compressed = NotFetched
mirrored = False
host_io_limits = NotFetched
slo_name = NotFetched
disk_type = EFD
status = ok
volume_profile = fs_data_file_1_vp
is_dynamic = True
is_greedy = N/A
num_stripe_members = 8
stripe_size = 262144
fixed_block_dedup = False

So the objective is to get rid of the pool on the eNAS and VMAX.

We tried deleting this pool via nas_delete command, but following error appears:

Error 10207: Deletion of system AVM pool fs_data_file_1 is only allowed by root user.

As far as I understand, there are 3 types of Pools for File which can be created:

• System Defined Pools: these are built in pools, they get activated when LUNs are provisioned to the Celerra using the “Disk Provisioning Wizard for File”, just a couple of clicks and you are ready to start provisioning file systems.
• User Defined Pools: These ones are particularly useful in cases where you want to have some control, for example, which physical disks are going to be used, but you leave the rest of the management process to AVM.
• Mapped Pools: This type of pool is created when you manually add LUNs to the Celerra. If you want to manually distribute this LUNs, remove them from the pool. The Pool will be deleted when no LUNs are assigned to it.

So the pool is system-defined, and it's deletion is not possible right?

Could someone please point out a direction in this problem?