To remove all NFS datastores from all hosts in a vCenter which are in All Paths Down (APD), Permanent Device Loss (PDL) state, or are inaccessible, you’ll need to carefully script the removal process using PowerCLI. Here’s an example script that demonstrates how you might do this:

# Import VMware PowerCLI module
Import-Module VMware.PowerCLI

# Connect to vCenter Server
$vcServer = 'your-vcenter-server'
$vcUser = 'your-username'
$vcPass = 'your-password'
Connect-VIServer -Server $vcServer -User $vcUser -Password $vcPass

# Retrieve all hosts
$hosts = Get-VMHost

foreach ($host in $hosts) {
    # Retrieve all NFS datastores on the host
    $datastores = Get-Datastore -VMHost $host | Where-Object { $_.Type -eq "NFS" }

    foreach ($datastore in $datastores) {
        # Check the state of the datastore
        $state = $datastore.ExtensionData.Info.Nas.MultipleHostAccess
        $accessible = $datastore.ExtensionData.Summary.Accessible

        # If the datastore is in APD, PDL state or inaccessible, remove it
        if (-not $accessible) {
            try {
                # Attempt to remove the datastore
                Write-Host "Removing NFS datastore $($datastore.Name) from host $($host.Name) because it is inaccessible."
                Remove-Datastore -Datastore $datastore -VMHost $host -Confirm:$false
            } catch {
                Write-Host "Error removing datastore $($datastore.Name): $_"
            }
        }
    }
}

# Disconnect from vCenter Server
Disconnect-VIServer -Server $vcServer -Confirm:$false

Explanation:

• Import-Module: This command loads the VMware PowerCLI module.
• Connect-VIServer: Establishes a connection to your vCenter server.
• Get-VMHost and Get-Datastore: These commands retrieve all the hosts and their associated datastores.
• Where-Object: This filters the datastores to only include those of type NFS.
• The if condition checks whether the datastore is inaccessible.
• Remove-Datastore: This command removes the datastore from the host.
• Disconnect-VIServer: This command disconnects the session from vCenter.

Important considerations:

1. Testing: Run this script in a test environment before executing it in production.
2. Permissions: Ensure you have adequate permissions to remove datastores from the hosts.
3. Data Loss: Removing datastores can lead to data loss if not handled carefully. Make sure to back up any important data before running this script.
4. Error Handling: The script includes basic error handling to catch issues when removing datastores. You may want to expand upon this to log errors or take additional actions.
5. APD/PDL State Detection: The script checks for accessibility to determine if the datastore is in APD/PDL state. You may need to refine this logic based on specific criteria for APD/PDL in your environment.

Replace the placeholders your-vcenter-server, your-username, and your-password with your actual vCenter server address and credentials before running the script.