A part from configuring high performance vm, that gives me no high availability. Can I allocate huge pages using vdsm-hook-hugepages-4.19.31-1.el7.centos.noarch it seems that after updating an environment to 4.2 I'm not able to start a VM configured with the custom property I get Th ehost xxxxx did not satisfy internal filter HugePages because there are not enough free huge pages to run the VM But on host I have # cat /proc/meminfo | grep -i huge AnonHugePages: 0 kB HugePages_Total: 60000 HugePages_Free: 60000 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB # and the custom property is configured to allocate 8200 huge pages to the guest The gropu configured in sysctl.d/10-hugepages.conf is vm.hugetlb_shm_group = 36 Do I have to set anything in /etc/securily/limits.d/ for qemu user? Thanks In advance, Gainluca