My supervisor wants to move to Veeam for performing backups. I know I can do this for most VMs, but I'm concerned about some of them and can't find the necessary documentation to understand exactly what is happening when a snapshot is taken in VMWare
In my tests the memory consumed by the VM is the biggest concern. If the VM has 16 GB of ram, thent he snapshot will use at least 16GB of ram.
The following is an example of one VM of concern.
The vm typically consists of 2 datastores.
Datastore 1 contains the OS
Datastore 2 contains additional data. The OS in datastore 1 uses the data in datastore 2 as a seconday hard drive. Datastore 2 has a capacity of 1.99TB of data and 553 MB free. Datastore 2 is not using all of the space actually on the drive. It is using 805 GB and 843 GB are free if that makes any difference.
Datastore 1 has enough free space to handle the OS/memory part if a snapshot is created. However, I'm not sure what is going to happen to the disk snapshot for data store 2.
I'm concerned about the additional disk. I found the best practices below and it says " A snapshot file is only a change log of the original virtual disk."
It seems like I need a way to determine the change log size. Is there a way to determine the change log size?