Check Replica Status – Before deleting it – Part 1

Last month, a partner had to face-up a strange VBR behavior.

From VBR console he deleted a VM’s replica (Picture 1), and suddenly the production VM has been also erased (don’t worry, before doing any activity he tested the backups using sure backup technology).

Picture 1

The reason why it happened become clear to me once I read the logs.

To do it shortly, some weeks before someone started a Failover directly from vCENTER console without doing any communication to the internal IT team.

This article wants to explain how to avoid this common mistake.

The first step is understanding some basic concepts:

a) VMware identify any single VM with a number named MorefID and a UUID.

b) Any single operating system has an identifier named Instance UUID (Universal Unique IDentifier); in my lab, I set-up  more than one replica job for a single VM

Table 1. row 2. shows the name of production VM (Ubuntu-02), its morefID  (vm2270), where it is running (Milan), the UUID (…bcc12) and its VM UUID … f58b.

Table 1. row 3-4 shows the name of  VMs replicas,  morefID, instance UUID and its UUID.

All tables shown in these articles have been created using Veeam One

Name PCName morefID DataCenter Instance UUID UUID
Ubuntu-02 ubuntu-02 vm-2270 Milan 502d2405-cc8f-de73-1a19-57e8496bcc12 564d013a-7835-9d1b-841e-32855790f58b
Ubuntu-02_Rep_VC01 ubuntu-02 vm-2694 Milan 502d2d90-d08f-08aa-efcf-d9feaa1d13f8 564d013a-7835-9d1b-841e-32855790f58b
Ubuntu-02_Rep_VCDR ubuntu-02 vm-399 Venice 501d517b-672e-30e0-665a-fd4b4af7dcb6 564d013a-7835-9d1b-841e-32855790f58b

Table-1

Picture 2 shows the VM  source (highlighted in yellow) from vCENTER console.

Picture 2

After checking-up that VM source is switched off, it’s possible to start a Failover (Picture 3).

Picture 3

Next five pictures show the step by step wizard to complete the procedure correctly.  As you can see from picture 4 the VM that has been replicated with two different jobs (Picture 5) is always Ubuntu-02.

Picture 4

Picture 5

Pictures 6-8 show the result of the failover.

Picture 6

Picture 7

Picture 8

What happens when you complete the task with the Permanent failover? (Picture 9/10/11)

Picture 9

Picture 10

Picture 11

First of all, comparing picture 3 with 12 it is possible to see that one of the Replica Ready VM, and precisely the VM in permanent failover, has been deleted 

Picture 12

Picture 13 shows that now the replica job contains 0 objects. The right behavior is confirmed by pictures 14,15,16 and 17  where it is shown that the replica is not available anymore.

Picture 13

Picture 14

Picture 15

Picture 16

Picture 17

The cloning job option didn’t change the correct behavior (Pictures 18 and 19)

Picture 18

Picture 19

Let’s sum up. Following the right procedure, the Failover works as aspected

Now …. why the VM has been deleted? The next article will explain it in detail.

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