That depends on what you plan on doing with the host. IIRC live VM migrations use host CPU time, and depending on transport can use quite a bit of CPU (for encryption/compression). Same with storage, if you have a ZFS/btrfs/LVM2/RAID/encryption setup that requires a lot of CPU, that's also counted against host CPU time. libvirtd itself doesn't need all that much resources for itself, that said. 2 cores and 2GB RAM should suffice as baseline? Plus whatever you need to meet above needs, if any apply. On 26.08.19 20:02, Kaushal Shriyan wrote:
Hi,
I am running Dell R630 Poweredge 1U with 32 cores vCPU's and 96 GB RAM. What should be the minimum numbers of CPU cores and memory that should be reserved for host OS (CentOS 7.6) and the remaining CPU cores and memory resources to be allocated for Guest OS?
I look forward to hearing from you and thanks in advance.
Best Regards,
Kaushal
_______________________________________________ libvirt-users mailing list libvirt-users@redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users
-- Mit freundlichen Grüßen, / Best Regards, Sven Schwedas, Systemadministrator ✉ sven.schwedas@tao.at | ☎ +43 680 301 7167 TAO Digital | Teil der TAO Beratungs- & Management GmbH Lendplatz 45 | FN 213999f/Klagenfurt, FB-Gericht Villach A8020 Graz | https://www.tao-digital.at