Administrator Guide

Host cluster refresh in VMM results in IP address error
Host cluster refreshes in VMM that are performed on the Dell Hybrid Cloud System for Microsoft compute cluster (named <Prex>CCL)
pr
oduce Error 25112, as shown in the following section. Host cluster refreshes are performed automatically after certain operations in Dell
Hybrid Cloud System for Microsoft. The error has no immediate eect on operations, but it will continue to occur after each host cluster
refresh unless you reassign the IP address to the host cluster. Also, it may cause issues if there is a cluster failover.
Error (25112)
The specied addr
ess ((AllocatedIPAddressData#c9c1) { id = 1e0a529c-0d01-4fdc-af7b-64b4aa2f932c,
LastUpdatedTimestamp = 8/18/2015 2:31:27 AM })is already allocated by the pool (Management_Pool). This address
should be assigned t
o only a single entity.
Recommended Action
Resolve to which entity this address is allocated.
To resolve this issue, use the Revoke-SCIPAddress cmdlet in the VMM command shell to revoke the assigned static IP address for the host
clust
er; then use
Grant-SCIPAddress to reassign the IP address to the host cluster.
You can run the following Windows PowerShell script to nd out the IP addr
ess (based on the ID provided by the error message), revoke
the address, and then reassign the same IP address to the compute cluster. You must run the script on the Console VM; open an elevated
session of the VMM command shell.
Substitute the ID from the error message for $ID and the name of the IP address pool. $IPPoolName is Management_Pool, the IP
address pool for the compute cluster.
WARNING: The code set o
 by “Begin – Long Line” and “End – Long Line” is one continuous line of code that has
been wrapped to t in this document. It should be a single line in the script that you save and run.
$ID = "0a99a2f5-3516-4ab9-be89-7d9edd3bb0d2"
$IPPoolName = "Management_Pool"
If (-not (Get-Module virtualmachinemanager)) {
Import-Module virtualmachinemanager }
$IP = Get-SCIPAddress | Where-Object {$_.ID -eq $ID}
$IPPool = Get-SCStaticIPAddressPool -Name $IPPoolName
# Look up the DNS Name based on the IP address
$VMHostClusterName = [System.Net.Dns]::GetHostbyAddress($IP.Name)
$VMHostCluster = Get-SCVMHostCluster -Name $VMHostClusterName.HostName
# Release the IP address to the IP pool
Get-SCIPAddress -IPAddress $IP | Revoke-SCIPAddress
# Re-assign the IP address to the host cluster
# Begin - Long Line
Grant-SCIPAddress -GrantToObjectType HostCluster -GrantToObjectID $VMHostCluster.ID -IPAddress
$IP.Name -StaticIPAddressPool $IPPool -Description $VMHostCluster.Name
#End - Long Line
VM refresh of the Console VM completes with a warning
After a VM refresh of the Console VM in VMM, you see the following warning. You can ignore this message; the issue has no e
ect on
operations.
Administration 21