Tuesday, February 27, 2018

DPM 2012–Event ID 3184 Owner DPM Server

Recently I had an incident on the DPM 2012.  It’s the ActiveOwner issue.


I’m going to share with you how I done it.

The ActiveOwner files are located in "c:\program files\Microsoft Data Protection Manage\dpm\activeowner" on the server hosting the databases (SQL server being backed up). In my case it is one of the SQL server the DPM is protecting.  These ActiveOwner are used to manage ownership of databases, important for ensuring multiple DPM servers aren't attempting to backup/restore resources at the same period of time.


In the Protected Server that is running the SQL, from the Windows Explorer, drill to the location of:
C:\Program Files\Microsoft Data Protection Manager\DPM\ActiveOwner .

Rename all the files that is 0 KB. e.g. rename with the extention of .old


Next launch the Command Prompt in Administrator.


Change the directory to : C:\Program Files\Microsoft Data Protection Manager\DPM\bin in the Protected server (not DPM)

Key in as follow :
SetDPMServer.exe –DPMServerName DPMServerName

Note : Replace the DPMServerName with your DPM Server.  The rest of the syntax stays the same.

Rerun the Synchronization in your DPM Console.  It should resolved.


keywords : DPM, DPM 2012, DPM 2012 R2, Owner DPM Server ID 3184 The file or directory is corrupted and unreadable (0x80070570), DPM could not run backup/recovery job for the data source it is owned by a different DPM Server, Take data source ownership

Monday, January 15, 2018

Azure–Upsize VM while Maintaining VHD

Upsizing a VM which is in the same family will be easy to perform.  However, what happens if I want to upsize the VM to another category/family ?

I’m going to share the steps.

Scenario :

A VM (DC) that is in the size of Standard A1.  I’ll need to upgrade to size to Standard A1 V2.  Need to maintain the information.

In the steps I’ve created a text document and place it in the desktop of the old VM before I upsize the VM, just to show that the data is still intact.


Before changing the VM size.


The above shows the VM size


The above shows the VM (BK-TRN-DC01) in the resource group name rg_bkhoo_training


Take note of the VH VHD.  This info is needed later.

Also take note of the Network Card attach to the VM.

The Process.


Firstly, stop the VM just like the shown above.  The VM is stopping. 


Once the VM has stopped, then delete the particular VM.


As you can see, even though the VM has been deleted, the VHD is still intact in the storage.


Create a new VM with the same OS in the Resource Group that you have deleted the VM


Now I created a new VM.  In my example I name it as BK-TRN-DC01-A.


Now the VM, I select the size of A1_V2 Standard.


In the Settings panel, key in to the same settings as the same previous VM that was deleted earlier, then click OK

Revise the Summary, then click OK.

Once the VM is created, then click on the Virtual machine to review the size.  It’s shown as follow


Ensure the VM is shutdown down.

Azure Storage Explorer

Next is to launch the Azure Storage Explorer and connect to the Azure Account .


Take note that we’re going to remove the new VHD that has been created, and attach the previous VM VHD into the new VM.


Firstly, select the the new VM VHD, right-click and select Break Lease.


Click Yes to break the lease


Before the deletion, copy down the name of the new VM VHD.

Select the new VM VHD, then right-click, choose Delete the new VM VHD in the Azure Storage Explorer.


Select Yes to confirm the deletion


Right-click on the previous VM VHD and select Rename. Rename the VHD to the name that was noted earlier.


The end result in the Azure Storage Explorer is displayed as above for my example.

Attaching back previous Network.

The next things before firing up the VM, is to attach back the previous VM Network.  It contains the previous IP address, with it’s profile.  This is very important.

Take note the VM must be shutdown in order to perform the action

Select Virtual machine networking.


Select Attach Network Interface.


Select the previous VM network interface and click OK.


Next is to detach the the network interface when the new VM was created.

Select the new VM interface in the tab. Then at the top click Detach network interface.


Click OK to confirm.


Take note of the previous Private VM IP has been attached to the new VM.


Now can Start the VM.

RDP into the VM


Take note that the new VM hostname is the old VM hostname.  This is because is using the previous VHD. 

Also take note of the IP address.  It’s the previous VM IP address. 

Hope the steps has helped you on how to migrate your VMs from one size to another (from different category) without much of hassles.  The method also can be use to migrate the VMs from classic to the new Azure Portal.

keywords : Azure migration, azure up size, azure family, azure migration of different family, virtualization, azure sizing.

Wednesday, January 10, 2018

Azure Storage Explorer–Release 0.9.3

The Microsoft Azure Storage Explorer was release in December 2017.

Can download from the link  here


keywords : Azure Storage Explorer, storage, azure, cloud storage

Monday, March 13, 2017

SCDPM 2016 Storage Setup – Modern Backup Storage

In the System Center Data Protection Manager 2016 (SCDPM 2016), there’s improvement of which type of data to be stored into specific LUN.  I have in the sample are 2 LUNs from NetApps presented the volume to SCDPM 2016 for the Storage Pool.

By configuring this, I’ll have it as Application-aware backup for my SCDPM 2016

In the predecessors (SCDPM 2010, SCDPM 2012), the whole storage pool is mixed together with SQL,VM Backups etc.

However in the SCDPM I can have something like this :


In order to have the above, I’ll share the steps of how it was done.

Once the LUN is presented to the SCDPM 2016, open up the Disk Manager.  I’m going to use Disk 4 and add into the Storage Pool.  This LUN I’m going to use it for SQL type of backups.  This Disk 4 LUN storage was presented from NetApps.  In the later steps I use a friendly name to distinguish in the Storage Pool.


I’m going create it as a New Simple Volume (Right-click – Select New Simple Volume)


In the Welcome to the New Simple Volume Wizard, click Next.


In the Specify Volume Size, click Next (selection to use entire volume for this backup)

In the Assign Drive Letter or Path display, click the Assign the following drive letter, select letter, then click Next


In the Format Partition display, click Do not format this volume, then click Next.


In the Completing the New Simple Volume Wizard, click Finish

(Below is just a sample)


It will something like a sample below in the Disk Management, once the above activity has completed carry out.


Switch back to SCDPM 2016 console.

Click ManagementDisk Storage – then click Add at the ribbon menu.


In the Add Disk Storage display, click the Add button. 


A warning is displayed, click Yes  to continue


Once selected and added, key in a friendly name (as mentioned earlier in this blog) to distinguish.  Click OK.


Double click on the DPM Management Shell to launch the specific PowerShell commands for SCDPM (Note that this is different set of commands from the normal Windows PowerShell)

Once the DPM Management PowerShell is launch type the following :

$vol = Get-DPMDiskStorage –Volumes



In the next command key, this is going to change the particular pool for Application-aware backup as shown below :

Update-DPMDiskStorage –Volume $vol[3] –FriendlyName “SQL-NetApps” – DataSourceType SQL

Note : Change the ones in Pink in the above syntax  The rest of it stays.


DatasourceType supported are :

  • Client
  • SQL
  • SharePoint
  • Exchange
  • SystemProtection
  • HyperV
  • VMWare
  • Other
  • All

Remember to use a unique Volume number.  Usually my Practice is using Disk # – 1  (Disk Number minus 1, refer to the Disk Management)


Once the Update-DPMDiskDiskStorage shell command is done, navigate back to your DPM ConsoleManagementDisk Storage to see the Preferred Datasource Types has been changed


When the Protection Group is created, you can then select the appropriate storage for the kind of backup.  With this Workload Aware Storage, it will help to reduce storage costs.  

Hope this helps.

keywords : Application-aware backup, SCDPM 2016, System Center Data Protection Manager 2016, modern backup storage

Wednesday, March 8, 2017

Network Connection Folder Empty

Recently I had an issue with Server not displaying the Network Adapters.


I checked and ping and it was okay.  But when I did a Failover Cluster Validation, it displayed error cause it couldn’t find the network.

The following are the steps that was carried out to have it resolve

  • Open regedit .
  • Drill to the following in the registry


  • On the right-panel look for Config.  Delete the key.

  • No worries.  When delete this key, it’s just removing the configuration cache.
  • Restart the server or just reopen the Control PanelNetwork, it will display once again.


keywords : Network Connection missing, network not display, network connections folder is empty, not showing network adapter list