Hi!

I have been using Xen for nearly 10 years, now. I started with VirtualIron and changed over to Xenserver when Citrix closed VI.
My use-case is mostly a company-network of a mid-size-company.

I still think Xenserver/XCP-ng is one of the best platforms (thats why I became a sponsor). There are no very good alternatives.

• VMWare is only a good solution if you pay for the "large" Enterprise bundles
• Proxmox/oVirt is very limited
• HyperV is a Microsoft Product...

What I really like on Xenserver/XCP-ng is the possiblity to run the same Hypervisor with the same featureset on every test-server, production-cluster, and the possibility to live-migrate between pools.

Hi!

I was now able to solve both issues (thank you @olivierlambert):

• Adding additional Management Interface:
  --> XOA - Host - Network - Change Type to "static"

• Moving Management Interface to Bond:
  --> XOA - Pool - Network - Create Bond with "old" single-Interface and another interface
  ----> IP is automatically reassigned to Bond

You can get the backups from the logs:

/rest/v0/backup/logs?fields=tasks

Just if somebody else is searching for the same thing, although it is not directly related to XOA:

If you want to get these alerts by mail and you are not using XCP-ng-Center, you can activate them with:

xe pool-param-set uuid=pool-uuid other-config:mail-destination=mail@example.com
xe pool-param-set uuid=pool-uuid other-config:ssmtp-mailhub=mailserverip:port

KPS

Hi!

I am using XOA on lates stable 5.98.1.
The "Performance-Plugin" seems to have a problem on the resolution of alerts:

First Mail: SR-fill >80%: iSCSI-SR1: 80.1% used
Resolution Mail: END OF ALERT: localstorage: 0.0% used

--> When iSCSI-SR1 did fall below 80% I received the mail about a totally different SR, that is currently empty

Are you having the same issue?

Regards
KPS

I do not think, there will be a "Veeam for XCP-ng". I think, we should hope and help to improve XOA.

My (constructive) critic points:

• Backup and restore speed should be higher
• Instant restore "pendant" is missing --> makes restore speed MORE critical
• No real "progressbar" on jobs!
• Maintenance-jobs not really visible at all (backup-merge!)

There is also one other thing, but I think, it can be handled mostly with additional agent-based-software:

• Application aware backups (active directory, sql, etc.)

--> So the main point is: You are currently not able to estimate the speed or progress of jobs until they are finished and you do not see maintence jobs

@nikade
I think, this can be handled. The downsides are the inefficient way to save the VMs, which can perhaps be minimized with ZFS storage for some compression, but it is working.

You really need an application aware backup with AD.

Option 1: Additional backup-software
Option 2: Combine Windows-Backup with XOA
--> A system-state-backup should be sufficient.
Option 3: Install a new DC

@Tristis-Oris
That's a "known issue":
https://xcp-ng.org/forum/topic/7827/xoa-does-not-refresh-quickly-status-of-nics

XCP-ng-center is showing the update.

@ferrao
There is another thread about bad performance of migrated VMs, where the main reason was/is, that the wrong template was active which did lead to a degraded performance.

Hi!

I want to disable "Manage Citrix PV drivers via Windows Update" for a production VM - running Windows 2022.

Is there anything "additional" to do to remove that feature from the VM?

When I enable it, it does install some components at the next windows-update-task, but I did not find any point to remove that component.

Best wishes
KPS

@DustinB We are using "local" XOA-accounts, but:

I was able to find the right syntax:

xo-cli user.set id=xxx-xxx-xxx preferences='json:{"otp":"JVTXXXXXXXXX"}'

I am able to set a fixed OTP

@olivierlambert
Thank you. I was searching for trim (only).

sr.reclaimSpace seems to be the one

@olivierlambert
Could you please give advice on how to „reliably“ disable XenTools update for a running VM? Is it sufficient to set the registry keys? Is it sufficient to disable the scheduler job?
How can I safely disable all the updates until this is solved?

...some hard to answer questions, but I will give it a try:

• Ressource Allocation
  I would always prefer to assign static memory instead of dynamic. That always the "more stable" version and I would avoid memory-overprovisioning at any time.

• Storage
  Most people here are prefering NFS because of its simplicity. I am prefering iSCSI because of MPIO, but you will loose thin-provisioning, if your storage does not do it "in the background", like a ZFS-based storage

• Network
  My reference layout it:
  2x 10 GbE "Management + Backup" active-passive bond
  2x 10 GbE "VM network"
  2x 10 GbE iSCSI/NFS

• Backup
  XOA can provide a lot. Check it please and come back if something is "missing" for you.

• Security
  Nothing special. XOA can provide 2FA. The downside is, that there is always ONE root-password on the XCP-ng-hosts without any alternative

• Performance
  Install guest-tools

• Community Tools
  That is highly individual. You can find a lot in this forum, but I think, most people don't need any special scripts.

KPS

@rtjdamen
That is VERY funny: I did write a small script for that, today morning...

#!/bin/bash

export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

/usr/local/bin/xo-cli --register --allowUnauthorized  --token xxxxxxx http://xxxxxxx


for hostuuid in $(xo-cli rest get hosts | grep hosts | awk -F "/" '{print $2}' | awk -F "'" '{print $1}');
        do
                hostnamelabel=$(xo-cli rest get hosts fields=name_label filter="uuid:$hostuuid" | grep name_label | awk  -F "'" '{print $2}')
                echo VMs on $hostnamelabel $hostuuid:
                /usr/local/bin/xo-cli xo.getAllObjects filter="/^VM$/ \$container:$hostuuid"  | grep name_label | awk -F "'" '{print "    " $2}'
        done

And a Cron-Job:

0 * * * *       root    /bin/bash /root/scripts/ShowVMsOnHost.bash > /tmp/vm-host-list.$(date '+\%Y-\%m-\%d'_\%H-\%M-\%S).txt 2>&1

@julien-f
Thank you very much!!! GREAT!

@carp2027
FYI, I did just install KB5039227 on Windows 2022 with UEFI (no secure boot), Citrix Tools 9.3.2, XCP-ng 8.2.1
--> No Issues

I did test with and without "Manage Citrix PV drivers via Windows Update"

The reddit-thread is now also containing a report about Windows 10.

@tuxen
I did send the MEMORY.DMP-files to a microsoft specialist and did post the result on Juli 25 in that thread.
daemon.log is quite hard for me to read. I did not find something, I can see as an error. It looks, like a "shutdown" - not a reboot.

@chrisfonte
Yes, fully licensed. It is not a "shutdown because of missing licenses after 24h".

As long as XCP-ng-center is working, you can use it's VM-console which does also support full-screen.