XenServer 7.4

A new version of Citrix XenServer is now available. So what about this XenServer 7.4 release? Let's see!

New features?

Live vGPU migration seems to be the only big new feature in this Citrix XenServer 7.4. And it's only for Enterprise customers.

For more details, see the feature matrix here.

AMD MxGPU is also officially supported now!

Under the hood

Let's dig a big with a xl info command:

# xl info
host                   : xenserver-7-4
release                : 4.4.0+10
version                : #1 SMP Mon Feb 19 10:31:57 UTC 2018
machine                : x86_64
nr_cpus                : 2
max_cpu_id             : 14
nr_nodes               : 1
cores_per_socket       : 1
threads_per_core       : 1
cpu_mhz                : 3320
hw_caps                : 07cbfbff:f7fa3203:2c100800:00000121:0000000f:009c6fbb:00000000:00000000
virt_caps              :
total_memory           : 4091
free_memory            : 3085
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 7
xen_extra              : .4-4.1
xen_version            : 4.7.4-4.1
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p 
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 9a6cc4f5c14b, pq b46900fe4252
xen_commandline        : dom0_mem=752M,max:752M watchdog ucode=scan dom0_max_vcpus=2 crashkernel=192M,below=4G console=vga vga=mode-0x0311
cc_compiler            : gcc (GCC) 7.2.0
cc_compile_by          : mockbuild
cc_compile_domain      : [unknown]
cc_compile_date        : Mon Feb 19 10:52:37 UTC 2018
build_id               : e27b2d1991e7dffe5968ed95af7cb8cc16fb32dd
xend_config_format     : 4

In short:

• same Dom0 kernel than XenServer 7.3
• Xen in 4.7.4-4.1 vs 4.7.4-3.2 of 7.3

Download

You can download it here: https://www.citrix.com/downloads/xenserver/product-software/xenserver-74-free-edition.html

Note: you need a Citrix account to do so.

What about XCP-ng?

It will likely based on XenServer 7.4, and it's still planned for end of Q1! Stay tuned on http://xcp-ng.github.io!