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@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/libvirt-users > -- Mit freundlichen Grüßen, / Best Regards, Sven Schwedas, Systemadministrator ✉ sven.schwedas@xxxxxx | ☎ +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
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