IT Solutions Technology Blog

How to keep your XCP-ng system updated

[09:05 xcp-ng-01 ~]# yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Excluding mirror: updates.xcp-ng.org
* xcp-ng-base: mirrors.xcp-ng.org
Excluding mirror: updates.xcp-ng.org
* xcp-ng-updates: mirrors.xcp-ng.org
xcp-ng-base/signature | 473 B 00:00
xcp-ng-base/signature | 3.0 kB 00:00 !!!
xcp-ng-updates/signature | 473 B 00:00
xcp-ng-updates/signature | 3.0 kB 00:00 !!!
No packages marked for update
[09:05 xcp-ng-01 ~]#

How to find XCP-ng host-uuid because for many xe commands on XCP-ng you have to use a host-uuid=<…>

[09:23 xcp-ng-01 ~]# xe host-list
uuid ( RO) : e754cbb9-7bfd-4659-9f34-03bca65443f0
name-label ( RW): xcp-ng-01
name-description ( RW): Default install
[09:45 xcp-ng-01 ~]#

[09:55 xcp-ng-01 ~]# xe host-param-list uuid=e754cbb9-7bfd-4659-9f34-03bca65443f0 | grep version
API-version-major ( RO): 2
API-version-minor ( RO): 16
API-version-vendor ( RO): XenSource
API-version-vendor-implementation (MRO):
software-version (MRO): product_version: 8.2.1; product_version_text: 8.2; product_version_text_short: 8.2; platform_name: XCP; platform_version: 3.2.1; product_brand: XCP-ng; build_number: release/yangtze/master/58; hostname: localhost; date: 2023-10-18; dbv: 0.0.1; xapi: 1.20; xen: 4.13.5-9.38; linux: 4.19.0+1; xencenter_min: 2.16; xencenter_max: 2.16; network_backend: openvswitch; db_schema: 5.603
virtual-hardware-platform-versions (SRO): 0; 1; 2
[09:55 xcp-ng-01 ~]#

[10:08 xcp-ng-01 ~]# xenpm get-cpufreq-para | fgrep turbo
turbo mode : enabled
turbo mode : enabled
turbo mode : enabled
turbo mode : enabled
[10:09 xcp-ng-01 ~]#

[10:10 xcp-ng-01 ~]# grep „model name“ /proc/cpuinfo
model name : Intel(R) Celeron(R) J4105 CPU @ 1.50GHz
model name : Intel(R) Celeron(R) J4105 CPU @ 1.50GHz
model name : Intel(R) Celeron(R) J4105 CPU @ 1.50GHz
model name : Intel(R) Celeron(R) J4105 CPU @ 1.50GHz
[10:10 xcp-ng-01 ~]#

[10:10 xcp-ng-01 ~]# xenpm start 1|grep „Avg freq“
Avg freq 2206470 KHz
Avg freq 2311540 KHz
Avg freq 2326550 KHz
Avg freq 2326550 KHz
[10:12 xcp-ng-01 ~]#

Power Settings in Citrix Hypervisor: C-states, Turbo and CPU Frequency Scaling – for AMD processors the „ondemand“ governor is normally preferred as it gives a good compromise between performance and power-saving but Intel processors typically save power by entering deep C-states so the „performance“ governor is preferred

[10:16 xcp-ng-01 ~]# /opt/xensource/libexec/xen-cmdline –set-xen cpufreq=xen:performance
[10:16 xcp-ng-01 ~]#