So my newly upgraded from 2012 R2 DPM kept failing on doing backups of some VMs which have the new RCT style backup capabilities.
After quite a lot of troubleshooting, I found this article which solved the problem (thanks!):
Missing Windows Media Player on Windows 10?
Are you missing WMP on Windows 10? Have you already tried to go through Microsoft’s new way to add WMP to Windows 10 (example: https://pureinfotech.com/install-windows-media-player-windows-10/) and still WMP is not there, even though the setting app says it is there? This route never worked for me on my Windows 10 pro installation đ
Here is how to resolve that problem! : Use the old control panel
Steps:
In Windows 10, WMP installation using the settings > optional features never worked. However, when I tried going through this route, it worked! :
Control panel (old style) >
Programs >
Turn windows features on / off >
Turn windows feartures on / off (yes, once again, on the left side menu) >
expand “media features” >
check Windows Media Player checkbox >
click OK
Phew!
Fix trust relationship at sites with smart card restrictions
So I know there are lots of articles out there which tell you how to fix the trust relationship between a machine and AD. However, in sites where smart cart authentication is enforced for admin accounts, it is very difficult to do that easily. I tried many methods and this is the one which works quickest for me:
This assumes that you have two accounts. one admin and one non admin.
- Delete AD computer account of that machine
- Add AD account for the machine, let your non admin account be able add machine to domain
- Go to the machine and on an “administrative command prompt” type this command:
- You will be prompted for a password. Type the non admin account’s password
- Reboot (not strictly needed)
- Done!
netdom resetpwd /s:domain-controller-name /ud:non-admin account /pd:*
This is just one way of many other ways to do this.
How to fix replica which has stopped syncing
So the status of your Hyper-V replica shows that replication health is critical and if I click resume replication, it says replicating changes >> and after a few moments >> failed.
There is no other option to fix this issue. Try these steps:
(I use Hyper-V manager for this procedure)
1. From the primary site, remove replication using “remove replication” option.
This will leave the replica VM on the DR site intact.
2. Now, on the DR site, remove replication.
If you look at this replica VM inside VMM, you will see that now it has become a regular VM. It looks like a regular server instead of a server with a shadow behind it. (you may have to refresh VMM)
3. On the primary site, right click on the VM and choose enable replication.
4. Go through the wizard, (next-next) until you come to the “Choose initial replication” page. On that page, choose the option “Use an existing virtual machine on the replica server…”
5. Click finish and it shows “sending initial replica (progress percentage).
Don’t worry, it is not really all the data, it is synchronizing with the data already there at the DR site.
That’s it folks! I hope it helps someone.
How to re-sync replication with an old initial replica on USB drive
I ran into a situation where a large VM had its replication enabled, and the initial replication (IR) sent to a USB drive. Then IR was imported on the DR site. Everything was fine but later on, for one reason or another, the replica was deleted. At this point you have the option of recreating another IR to a USB drive, sending that USB drive to your DR site, importing the new IR again. All that, of course, will take quite a lot of time.
The alternative is to import the same old IR on the USB drive (assuming it is still there at the DR site) and letting the replication sync up the changed bits.
Here is how to do that.
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