break

$eql_group_addr = '1.1.1.1'
$eql_user = 'grpadmin'
$vcenter_addr = 'vcenter.domain.loc'
$vcenter_user = 'administrator@vsphere.local'
$vmhosts = '*'

$creds = Get-Credential -UserName $vcenter_user -Message 'Enter Password'
Connect-VIServer -Server $vcenter_addr -Credential $creds

# Manage EqualLogic with PowerShell
Import-Module -Name 'C:\Program Files\EqualLogic\bin\EqlPSTools.dll'
$eql_creds = Get-Credential -UserName $eql_user -Message 'Enter Password'
Connect-EqlGroup -GroupAddress $eql_group_addr -Credential $eql_creds

#################################################################################################################################################################
$datastore = Get-Datastore -Name 'VMFS01'
$esxi_hosts = Get-VMHost -Name $vmhosts
$equallogic_lun = Get-ScsiLun -Datastore $datastore | Select-Object -First 1
$equallogic_lun_path = Get-ScsiLunPath -ScsiLun $equallogic_lun | Select-Object -First 1
$equallogic_volume_name = (Get-EqlVolume | Where-Object { $_.iSCSITargetName -match $equallogic_lun_path.SanId }).VolumeName
$equallogic_canonical_name = $equallogic_lun.CanonicalName
'EqualLogic Volume Name: {0}' -f $equallogic_volume_name
'EqualLogic Canonical Name: {0}' -f $equallogic_canonical_name

# List the contents of the datastore to ensure that it is empty
New-PSDrive -Location $datastore -Name ds -PSProvider VimDatastore -Root '\' | Out-Null; ls ds:; Remove-PSDrive ds

# Unmount/detach datastore from all hosts
Unmount-Datastore -Datastore $datastore
Detach-Datastore -Datastore $datastore

# List the datastore status for each host
Get-DatastoreMountInfo -Datastore (Get-Datastore -Name $datastore.Name) | Sort-Object Datastore, VMHost | Format-Table -AutoSize

# Set the EqualLogic volume offline and list the status
Set-EqlVolume -VolumeName $equallogic_volume_name -OnlineStatus offline; Get-EqlVolume -VolumeName $equallogic_volume_name | Select-Object OnlineStatus

# Rescan all HBAs on all hosts
Get-VMHostStorage -VMHost $esxi_hosts -RescanAllHBA -RescanVmfs | Out-Null

# Remove the datastore from the detached datastores cache on all hosts and list the status
# ESXi 5.5 and older
$esxi_hosts | ForEach-Object -Process { try { (Get-EsxCli -vmhost $_.name).storage.core.device.detached.remove($equallogic_canonical_name) } catch {} }
# ESXi 6.0 and newer
$esxi_hosts | ForEach-Object -Process { try { (Get-EsxCli -vmhost $_.name).storage.core.device.detached.remove($true, $equallogic_canonical_name) } catch {} }
$esxi_hosts | ForEach-Object -Process { try { (Get-EsxCli -vmhost $_.name).storage.core.device.detached.list($equallogic_canonical_name) } catch {} }