@olivierlambert and @AtaxyaNetwork pardon for my bad english.

Maybe I don't write clear. I hope haven't offensive to you.

Thank for your answer me.

@AtaxyaNetwork thanks for anwer me.

I didn't know that dom0 was a other vm.

Them why in similar instalations on other equipement with Ryzen 9 5900x and xcp 8.2.1 top shows 24 cores?

Do You know?

Hello everyone. I write because I installed XCP-NG (8.2.1) in a new hardware. This equipement has a Ryzen 9 5900X with a Asus Prime x570-p mother board.

When finished my instalation I runed lscpu and the system returned:

 Model name: AMD Ryzen 9 5900X 12-Core Prossesor
Core(s) per socket: 8
Socket (s): 1 

When I runed in xsconsole -> Hardware and BIOS Information -> Processor he showed:

Logical CPU: 24
Populated CPU Sockets: 1
Total CPU Sockets: 1
Description: 1 X AMD Ryzen 9 5900x 12-Core Processor

then, I runed top, and he showed 8 cores. I thinked the cpu is broken!.

Than, I booted ubuntu server 18.04-2 on this hardware (not virtualised) and runed lscpu and he showed 24 cores.

Than I booted Windows 10 64bit (not virtualised) and showed 24 cores. With Windows runed passmark and test runed correcly.

I have other instalations of xcp in other equipements with ryzen 9 and all show 24 cores with lscpu.

I don't know what to think. I don't know who say a true

Can you helpe whit this please?

@olivierlambert thanks.

When I typed "I leave how suggestion for improvement.", I wanted say "suggestion for nexts releases".

I 'm not a programmer, I'm sorry. I can only say my experiences of use.

My English is very poor. I don't want to sound offensive. I'm sorry.

Hello everyone.

The last week, i needed restore a one vdi from delta backups. This VM has a three vdis.

I restored a full VM for recovered a particular vdi.

I don't know if possible restore one vdi from VM's delta backup from XOA's restore GUI or command line.

If don't possible, I leave how suggestion for improvement.

regards.

@olivierlambert Also, I thing others ways.

Make a script in XCP host what run ping to VMS'S ip and force reboot of VM when ping is not respond.

What do you think about this?

hello @olivierlambert

( What do you mean exactly for a VM that doesn't respond?)
For example, when the SO of guest is freeze. (for different reasons ej: driver error, low quality software, etc).

(Xen will detect if a VM is crashing already, and will reboot it.)
where can I read information for this?

Hello everybody!!!

I want automatically reboot VMs when they are broken (no respond).
I don't know if xcg-ng has process or script for that cases.

I saw something in the web with ssh but maybe xcp-ng has something else.

You can help me?

Perhaps nfs has to options for restart connection when that is disconnect.
But I don't find option for this.

Thanks @olivierlambert , in south America the internet and energy services sometimes fails.